GPS World

Tag: JAVAD GNSS

  • Cluster Averaging with ease for the surveyor

    Cluster Averaging with ease for the surveyor

    Javad GNSS, makers of the Triumph-LS Rover receiver and the Triumph-1 and -2 base units, is offering a software procedure called Cluster Averaging, which takes advantage of its six different RTK engines and the J-Field receiver firmware.

    While a typical survey point collected by RTK methods requires multiple occupations to verify the integrity of the location and elevation, Javad GNSS’ J-Field program significantly reduces survey by collecting multiple sets of survey data through each RTK engine, the company said. During the data acquisition process, the receiver automatically forces a loss of satellite lock and restart to ensure multiple sets of independent data are collected for redundancy and quality assurance.

    Four groups of surveyed points. (Image: Javad GNSS)
    Four groups of surveyed points. (Image: Javad GNSS)

    As the surveyor returns for another set of redundant data, Cluster Averaging will recognize the previous surveyed points to provide error analysis using their chosen parameters for quality assurance. The surveyor may allow the J-Field software to average all of the data points or pick and choose those needing specific verifications. Also, the surveyor can specific different precisions for varying types of data collection (for example, control points vs. topographic data).

    (Image: Javad GNSS)
    (Image: Javad GNSS)

    Point numbering and data attributes are also automated during the cluster averaging processes. Once the operator has designated both number and field code, this information is reused each time to eliminate potential conflicts.

    Reports from the J-Field program documenting the locations with multiple occupations are easy to generate and informative, Javad GNSS said. By reviewing the results of the clusters, data integrity can be decided at the time of the survey and save time by later office verification. The surveyor can confidently complete the survey task knowing proof of accurate data for the project is at his/her fingertips.

    (Image: Javad GNSS)
    (Image: Javad GNSS)

    Cluster averaging within the J-Field program simplifies the redundant task of point verification, with a user-friendly interface and report, the company added.

  • Virtual base RTK from JAVAD automates for greater ease

    Virtual base RTK from JAVAD automates for greater ease

    JAVAD GNSS has integrated its Justin software suite, including Verify Base-RTK (VB-RTK) with its Triumph-LS Rover receiver, carrying six different RTK engines, and Triumph-1 or Triumph-2 base units, to make GNSS data collection easier yet more reliable.

    The combination of the J-Field onboard data collection of the Triumph-LS working with the Justin reduction software establishes the project coordinate system with little effort and good confidence in the user’s field data, the company said.


    The Javad Data Processing Online Service (DPOS), built in the Justin software system, works directly with the National Geodetic Survey’s Continuously Operating Reference Station (NGS CORS) system to calculate and establish the project base station within a known coordinate system.

    This system can be based upon the National Spatial Reference System (NSRS) or a localized system. Either way, the user can begin data collection immediately using an autonomous base point, with relative corrections being established to the RTK receiver.

    Before VB-RTK, an extra step (and time) was required to occupy the base point, collect a sufficient amount of data, and upload to the NGS Online Positioning Service (OPUS) for data calculations and positional determination. VB-RTK now automates this process, increasing efficiency and reducing errors.

    Among the main benefits of the software are the vector data check-verification routines and the ability for the user to easily identify random errors (receiver height input, description codes, and so on).

    Justin software enables thorough review of preset parameters and templates to help the user establish a consistent workflow pattern.Additionally, the receiver and software system do not rely on a third-party real-time network (RTN).

    Besides knowing exactly where the base station is broadcasting from, there are no data charges from the RTN nor cellular fees. By having the base station within the project area, the system will also provide the user with faster fixes and more accurate information.

  • BeiDou/GLONASS merger mystery

    Contrary to the “Out in Front” editorial published in the April issue of GPS World magazine, there was an Izvestia story published on March 28 touting the possibility of a merger of the GLONASS and BeiDou systems, and there will be an International Conference on Advanced Technologies in Manufacturing and Materials Engineering in Harbin, China, at which such a possibility may hypothetically be discussed.

    However, neither hard news nor any official statements have emerged to substantiate such a dubious claim, despite repeated queries to officials of both countries.

    Javad Ashjaee (far left, above), CEO of JAVAD GNSS and based in Moscow, communicated that he spoke on a panel at an aerospace technology event organized by the American Chamber of Commerce in Russia, alongside representatives from NASA, Boeing, Honeywell and Roskosmos.

    Ashjaee asked the Roskosmos official publicly about the prospect of a GLONASS merger with BeiDou, and “he knew nothing.”

  • System of Systems: The long life of GPS III

    System of Systems: The long life of GPS III

    Late Breaking: Ligado

    On April 26, the U.S. Department of Transportation publicly released the long-awaited GPS Adjacent Band Compatibility Assessment. See the June issue of GPS World for an expert and measured analysis of this highly impactful document.

    The article will be posted online when it becomes available in mid-to-late May.

    Merger Mystery

    Contrary to the “Out in Front” editorial published in the April issue of GPS World magazine, there was an Izvestia story published on March 28 touting a merger of the GLONASS and BeiDou systems, and there will be an International Conference on Advanced Technologies in Manufacturing and Materials Engineering in Harbin, China, at which such a possibility may hypothetically be discussed.

    However, neither hard news nor any official statements have emerged to substantiate such a dubious claim, despite repeated queries to officials of both countries.

    Javad Ashjaee (far left, above), CEO of JAVAD GNSS and based in Moscow, communicated that he spoke on a panel at an aerospace technology event organized by the American Chamber of Commerce in Russia, alongside representatives from NASA, Boeing, Honeywell and Roskosmos.

    Ashjaee asked the Roskosmos official publicly about the prospect of a GLONASS merger with BeiDou, and “he knew nothing.”

    Diverger Dilemma

    As this magazine goes to press, stories emerge of a U.K. plan to launch a satellite-navigation system separate from the European Union’s Galileo project. This comes in response to an EU statement that the UK would be shut out of key elements of the European satnav program, particularly the Public Regulated Service, after Brexit.

    Historically, in the late 1980s or early 90s the UK drew up plans for its own GNSS prior to the launch of Galileo. And UK-based Surrey Satellite Technology Ltd. built all operational Galileo payloads to date. So the country clearly has the capability. That SSTL is currently owned by Airbus (either German or Dutch division) may or may not constitute a wrinkle.

    Finally, the UK spent 1.4 billion euros on Galileo, and may now file for a refund.

    The Long Life of GPS III

    By Robin Wrinn, Contributing Author

    GPS III SV01 in electromagnetic interference, compatibility and passive intermodulation testing. (Photo: Lockheed Martin)

    During interviews with Lockheed Martin and Harris Corporation at the 34th Space Symposium, time and space were a frequent focus of discussion, but not in the normal “continuum” kind of way.

    Greater mission longevity is one of the key improvements GPS III delivers over those currently in service. Space Vehicles 1–10 have a planned mission life of about 15 years, 25 percent longer than their predecessors. Yet that begs the question “How long should a satellite live in space, with technology innovation occurring almost annually?”

    Advanced payload technology provides a partial answer to that question. Both Lockheed Martin and Harris Corporation highlighted new payload capabilities with built-in flexibility to adapt satellites in orbit to technology advances, as well as changes in missions.

    Lockheed Martin provided the media a tour of their Radio Frequency Payload Center of Excellence. Meanwhile, Harris recently announced completion of the fully digital Mission Data Unit (MDU), core to the navigation payload for GPS III 11 +. As a reminder, the current Harris payload for SVs 1–10 includes:

    • greater than three times reduction in range error,
    • up to eight times increase in anti-jamming power,
    • added signals, including L1C, compatible with other GNSS such as Galileo, and
    • greater signal integrity.

    According to Harris, the fully digital navigation payload will provide the ability to change and upgrade the satellites incrementally over mission life.

    Meanwhile, Lockheed announced a partnership with NEC to introduce artificial intelligence for computer learning in orbit. The company’s Payload Center experts touted significant advances in processers and a move toward next-generation antennas, arrays and transmitters to drive more satellite flexibility, capability and resilience.

    Observation: The market pressures of ‘new space’ players is prompting delivery of products that can drive more value for less cost. In this case, delivery of a common payload architecture and electronically steered beams to make satellite antennas become any shape you want. Most likely, beams of a different size on demand is a much better business case than a static one built five years ago.

    The day I interviewed Lockheed Martin’s Navigation Systems mission area Program Manager Johnathon Caldwell, the company had submitted its proposal for the U.S. Air Force’s GPS III Follow On (GPS IIIF) program. That same day, April 16, the media was given a tour of Lockheed Martin’s GPS III satellite assembly floor. It was clear from both Lockheed’s press materials and Caldwell that Lockheed Martin believes it is fully recovered from prior production hiccups and is

    • on track to deliver GPS Space Vehicles (SVs) 1 through 10, and
    • deserves to win the bid for GPS IIIF. Now that both Boeing and Northrop Grumman have dropped out of the running, Lockheed is virtually assured the contract. The government has said it will announce the award in March 2019.

    For an update on GPS III space vehicles 1–10, see the full version of this article.

    Harris Corporation Interview

    with Jason Hendrix, PNT Program Director

    What are the differences in the GPS III satellite payloads that were instituted to enable the new signals?

    The main difference is the power. The Air Force’s requirements called for significantly more anti-jamming capability. All the transmitters are a higher power.

    What was the most significant obstacle (or top obstacles, plural) in designing and manufacturing this new payload, to new Air Force specifications? How did you overcome it/them?

    Same answer really, the higher power. Keeping in mind, we went from a 7-year mission life requirement to a 15 year. That higher power puts more strain on components and new cyber requirements in software. When you couple all that together we are not just upgrading payload technology. It is really engineering a new set of payload requirements. It’s new generation, advanced.

    What are the advantages of a digital payload over the alternative?

    The advantages and the 30 percent difference are the timekeeping system portion. We’re moving from a manual, analog timing to digital to deliver to the Air Force more flexibility. It’s a nice option to have to be able to reprogram in orbit and maybe enhance capabilities desired in the future.

    For more from Harris, see longer version.

    Interview with Lockheed Martin

    with Johnathon Caldwell, Navigation Systems Mission Area Program Manager

    Any changes in your production approach having completed SV01?

    No, the performance on Vehicle 01 was as designed there were no technical or design changes necessitated throughout the rest of the fleet. So, it was a very successful from that perspective — from the standpoint of validating the design and wringing it out, Vehicle 01 served its purpose well.

    It had a very good T-Vac. I would say overall when you look at the industry, Vehicles 01–02, our vacuum test campaigns are the most rigorous test. Both went through their tests quite well. Some of the best I’ve seen.

    For more from Lockheed Martin, see longer version.

  • Spoofing detection available on Javad GNSS OEM boards

    Two methods of spoofer detection, the identification and sourcing of false GNSS signals, have been released by Javad GNSS, using features available for all of its OEM GNSS boards.

    • Spoofer detection and alarm. This feature then identifies and isolates the spoofer signal, ignores it, and provides a position solution using only valid satellite signals.
    • Determination of the direction from which the spoofing signals emanate. This can aid in tracking down the actual spoofing source.

    Spoofer Detection

    With 864 channels and roughly 130,000 quick-acquisition correlators, the Javad GNSS Triumph chip can assign more than one channel to each GNSS satellite, in order to find all the signals that are transmitted with that satellite’s PRN code. If the chip detects more than one reasonable and consistent correlation peak for any PRN code, it concludes that spoofing is present and can the proceed to identify the spoofed signals.

    In this case, it uses the position solution provided by all other clean signals (L1, L2, L5, and so on, from all GNSS constellations — GPS, GLONASS, Galileo, Beidou, and mroe) to identify the spoofer signal and use the real satellite measurement. If all GNSS signals are spoofed or jammed, then the system issues an alarm, directing the user to ignore GNSS and use other sensors in an integrated system.

    Satellite and Spoofer Peaks

    The figure below shows an example of a spoofer signal and a real satellite signal received at a GNSS receiver. These  screenshots  are from a real spoofer in a large city. The bold numbers are for the detected peaks. The gray numbers represent highest noise, not a consistent peak. A “*” symbol next to the CNT numbers indicate that signal is used in position calculation. Each CNT count represent about 5 seconds of continuous peak tracking.

    The first screenshot shows no spoofing is present. The second shows that all GPS satellites are being spoofed.

    No spoofer. Only one reasonable peak for each satellite. (Table: Javad GNSS)
    No spoofer. Only one reasonable peak for each satellite. (Table: Javad GNSS)
    Table: Javad GNSS
    Table: Javad GNSS

    In the above screenshot all GPS satellites have two peaks and all are spoofed. We were able to distinguish the spoofer signal and use the real satellite signals in correct position calculation as indicated by the ”*” next to the CNT numbers.

    GNSS Overall View

    The following screenshot  shows the status of all GNSS signals. The format and the signal definitions are explained below.

    Table: Javad GNSS
    Table: Javad GNSS

    Tracked: Tracked by the tracking channels and has one valid peak only.
    Used: Used in position calculation.
    Spoofed: Has two peaks. Good peak is isolated, if existed.
    Blocked: Blocked by buildings or by jamming. If jammed, shows higher noise level.
    Faked: Satellite should not be visible, or such PRN does not exist.
    Replaced: Real signal is jammed and a spoofed signal put on top of it. Because of jammer, it shows higher noise level.

    For determination of the direction from which the spoofing signals emanate, see Where is that spoofed signal coming from?

  • Expert Opinions: Challenges faced by multi-constellation GNSS receiver designers

    Expert Opinions: Challenges faced by multi-constellation GNSS receiver designers

    Javad Ashjaee
    President and CEO,
    Javad GNSS

    Q: What is the biggest challenge facing designers of multi-constellation GNSS receivers today?

    Javad Ashjaee, founder of Javad GNSS: The biggest challenge now is spoofing.

    Some years ago the issue was jamming —the hot issue of LightSquared — that would hurt GNSS. To solve that problem we created the J-Shield and showed that J-Shield technology could protect against LightSquared and similar signals. We manufactured dozens of units that were successfully tested by several independent laboratories.

    Now GNSS faces the spoofing issue. Reports of Black Sea spoofing and other examples show the urgency of paying attention to this problem. When a spoofer is successful, both position and time are spoofed.

    A Nov. 3 CNN video report on this subject gives an example of how little people know about spoofing and about the work that has been done on this subject. The report claims that GNSS technology companies have not done much or spent money on this subject. Obviously the reporter doesn’t know what we have done, as I will report here.

    I’ll review the spoofing methods and how we counter them.

    Source: Javad GNSS
    Source: Javad GNSS

    Spoofers use three methods: One simple way is to broadcast GNSS-like signals that provide the wrong ranging information which, when used, creates wrong position and time solutions. Most probably this is the method that Prof. Todd Humphreys used to spoof the GNSS receiver on the $80 million yacht [“GNSS Lies, GNSS Truth,” November 2014 GPS World.] This method fools the GNSS receiver into ignoring the correlation peak of the real satellite signal and using the correlation peak of the spoofer signal. To deal with this type of spoofer we take advantage of the 864 tracking channels and over 130,000 fast acquisition channels of our TRIUMPH chip. We assign more than one channel to each satellite signal and we track all their peaks: The real peak and the spoofer’s peaks. Then in Step 1, below, we exclude all signals with more than one correlation peak.

    Method Two is broadcasting spoofed signals for satellites that are below the horizon in the spoofed area or for satellites that do not exist. In this case only one correlation peak exists. Our equipment and OEM boards can download valid and certified almanac data from our website to know the status of satellites and their visibility ahead of their mission. Almanac data can be used for several weeks.

    Method Three is to cover the signal of a visible satellite with noise and on top of the noise add the spoofer signal with more power. We recognize such spoofers by their unreasonable signal power and the background noise.
    In the first counter-spoofing step we ignore these signals:

    1. Those with more than one peak;
    2. Those that according to our almanac should not be visible;
    3. Those with unreasonably high or inconsistent signal-to-noise ratio (SNR);
    4. Systems whose satellites all have similar SNR.
    5. Satellites that do not generate complete multi-frequency signals (spoofers usually generate only C/A code).

    After removing all questionable signals, we use the remaining signals to compute our approximate position. We need at least 4 signals from the many available signals of GPS L1, L2P, L2C, L5, GLONASS L1, L2, L3, and the many signals of BeiDou, QZSS and IRNSS.

    In the second step we validate all questionable signals against the approximate position that we have calculated and keep only those that pass our validation. We then re-compute the more precise position using all good signals. We consistently throw away the spoofer correlation peak and use the real satellite signal.

    If all signals of all satellites are spoofed, then we warn the user to ignore the GNSS signals and use some other sensors (like compass and gyro) to get out of the spoofed area. A spoofer that can spoof all signals of all satellites will be very expensive to build and deploy.

    In a very difficult situation, the user can enter their approximate position to quickly understand if spoofers exist, and then identify them.

    All the counter-spoofing methods that I have discussed here are the subject of patents for which we have applied.

    Since currently most of spoofers spoof the L1 C/A code, we can simply initially ignore the C/A signals to compute the initial approximate position and use it to identify the spoofed signals.

    It is vital that in areas that spoofing danger exists, users employ OEM boards that provide more satellite systems and more signals, rather than using a simple GPS C/A code, for example.

    Finally I would like to challenge Prof. Todd Humphreys [professor and director, Radionavigation Laboratory, University of Texas-Austin] to spoof any of our receivers that have this anti-spoofing option. We offer this as an option on all of our OEM boards.

  • Where is that spoofed signal coming from?

    An experiment in an anechoic chamber with a JAVAD GNSS TRIUMPH-LS shows the approximate orientation of the spoofer (at 283° azimuth.)

    Javad GNSS advises that with its equipment it is possible, when a spoofer is detected in the area, to identify the direction from which the spoofing signals are coming.

    Hold the receiver antenna horizontally and rotate it slowly (one rotation in 30 seconds) to determine the angle at which satellite energies become minimum.

    The spoofer’s direction lies behind the null point of the antenna reception pattern.

    An experiment in an anechoic chamber with a Javad GNSS Triumph-LS shows the approximate orientation of the spoofer (at 283 degree azimuth.)

  • Launchpad: Spoofer detection for surveyors

    OEM

    RF front-end board

    7-channel multi-GNSS multi-band for software-defined receiver

    The NT1065/66_USB3 multi-channel GNSS RF front-end board is based on NTLab’s RF ICs: NT1065 (four channels for GPS / GLONASS / Galileo / BeiDou / IRNSS / QZSS, L1/L2/L3/L5 bands) and new NT1066 (two channels for all previously mentioned GNSS signals, plus one extra-channel for IRNSS S-band). The board supports USB3 connection, allowing users to process captured satellite signals on a PC or DSP platform. The board is accompanied by comprehensive software and manuals. Features include six channels for L1/L2/L3/L5-band signals + one channel for S-band signals simultaneous reception; up to four coherent channels; IF bandwidth up to 32 MHz; acquisition of wideband signals up to 64 MHz (such as Galileo E5) by two coherent channels; USB3 interface (up to 800 Mbit/s); ability to connect four x CRPA. NTLab offers an academic discount program for universities, colleges and institutes, allowing them to purchase this powerful research tool with significant savings.

    NTLab, www.ntlab.com

    GNSS OEM RTK boards

    With rover radio for wireless applications

    Three new Tersus GNSS HRS kits feature high-precision BX305, BX306 and BX316 GNSS RTK boards. The kits consist of RTK receivers, GNSS antennas, RS05R radio station modems, radio station antennas, and related cables and converters. Embedded in the receivers are the Tersus RTK boards. They are compact-design, energy-efficient, centimeter-level accurate GNSS real-time kinematic (RTK) boards that bring high-precision positioning accuracy to the market. Different from the standard BX305/306/316 GNSS kits, the new HRS versions are equipped with the RS05R lightweight and robust UHF rover radio for wireless applications. It provides reliable data communication for demanding conditions that require a combination of stability, high performance and long-range operation. The kits can be used in a variety of applications, such as unmanned aerial vehicles (UAVs), surveying, mapping, precision agriculture, construction engineering and deformation monitoring.

    Tersus GNSS, www.tersus-gnss.com

    SURVEY & MAPPING

    Spoofer detection

    Spoofing alerts for surveyors

    Spoofer detection is now available on all JAVAD GNSS original equipment manufacturer (OEM) boards. When a receiver equipped with a JAVAD board detects more than one correlation peak for any PRN code, it warns the user of the presence of spoofing (false signals) and identifies the spoofed satellites. The receivers then switch to other signals and sensors that are not being spoofed to maintain accurate positioning. The user can also employ the receiver to try to identify the direction from which the spoofing signals are originating.

    JAVAD GNSS, www.javad.com

    Laser scanner

    Scanning range reaches 1 kilometer

    The ScanStation P50 combines all the features of the P40 plus a longer range scanning capability of more than 1 kilometer. The rugged, versatile laser scanner enables professionals to 3D capture at great distances with angular accuracy paired with low-range noise and survey-grade dual-axis compensation. The ScanStation P50 opens new business opportunities for reality-capture professionals, helping them to scan what was previously unreachable such as big mine pits, long bridges, dams and skyscrapers. With its range, the P50 enables users to scan any tall or wide infrastructure or dangerous sites from a remote and safe position. This newest member of the P-Series provides the highest quality 3D data and high-dynamic range (HDR) imaging at an extremely fast scan rate of up to 1 million points per second and ranges of more than 1 kilometer.

    Leica Geosystems, leica-geosystems.com

    TRANSPORTATION

    Smartphone data analysis

    Integrates gamification and real-time data

    Azuga FleetMobile: Standalone Smartphone Edition (SSE) is a smartphone-based solution for driver behavior monitoring, mobile timecard management and GPS tracking. Azuga FleetMobile SSE leverages data analysis components of the original Azuga FleetMobile application, including driver behavior monitoring, location-based timestamps for timecards, gamification and driver rewards, without requiring separate hardware installation via a vehicle’s OBD port. Azuga’s GPS fleet-tracking offerings feature a driver rewards program to help fleets reduce accidents by up to 70 percent. The standalone application, which works on both Android and iOS smartphones, integrates gamification and real-time data to encourage self-coaching and healthy competition. Azuga’s data science team can then leverage information about driving behaviors and combine them with route patterns, fleets’ vehicle health information and environmental factors to identify opportunities for performance improvements in fleet operations.

    Azuga, azuga.com

    Vehicle tracker

    Able to receive MobileEye ADAS alerts

    The RIFA series of full-featured GPS trackers have built-in gyro and G-sensors, and supports OBDII and J1939 protocols. In addition to 4G/3G communication, it provides options to use low-power wide-area networks (LPWAN) such as NB-IOT or LoRa, which can reduce communication costs significantly. The unique CAN-to-ADR (automotive dead reckoning) function provides accurate positioning in situations of weak GPS signals, such as driving in tunnels, indoor parking facilities, urban canyons or when GPS signal obstruction hinders positioning, without additional cabling for wheel speed input.

    Antzer Tech, www.antzer-tech.com

    UAV

    Thermal imaging payloads

    Ethernet/IP-Based connectivity

    The ThermalCapture IRnet provides an Ethernet interface for live data streaming to new and existing FLIR Tau 2 drone cores and FLIR Vue Pro/R cores. The market has increased its demand for connectivity by Ethernet, with professional drone manufacturers choosing Ethernet for communication on board UAVs. The ThermalCapture IRnet allows for real-time access via Ethernet while recording radiometric data to microSD, bringing real-time access in drone flight operations to thermal imaging data. It stores the full 14-bit radiometric thermal data on a microSD card. Real-time access remains available while radiometric data are being recorded; operators can also control the camera and settings via Ethernet. Using Ethernet also offers data privacy.

    TeAx, thermalcapture.com

    Airborne lidar mapping

    Centimeter-level accuracy for 3D mapping products

    The Think 3D Stormbee multicopter integrated with Trimble’s AP15 provides efficiency, accuracy and performance for lidar surveys from unmanned vehicles. The Stormbee is a directly georeferenced UAV lidar solution for 3D industrial mapping applications, designed to collect survey-grade spatial data more cost effectively and efficiently than static lidar. Stormbee’s 3D mapping technologies include Faro’s Focus 130 laser scanner, Trimble’s AP15 high-performance GNSS/inertial receiver, Applanix’s POSPac UAV GNSS/inertial post-processing software and Stormbee Beeflex software for lidar point-cloud generation. By using the high-performance Trimble AP15 with two antennas and the Applanix post-processing software (POSPac MMS) for georeferencing the lidar data, Stormbee provides an accurate real-time and post-mission solution for all motion variables.

    Think 3D, think3d.be

    Applanix, applanix.com

  • Javad GNSS offers spoofing alert for surveyors

    Spoofing — the generation of false and misleading GPS signals by “bad actors” — is becoming an increasing problem for all GPS users, and surveyors just as much as everyone else should be knowledgable and take countermeasures.

    Javad GNSS has announced that spoofer detection is now available on all of its OEM boards. If the receivers equipped with such boards detect more than one correlation peak for any PRN code, they warn the user of the presence of spoofing (false signals) and identify the spoofed satellites.

    The receivers then switch to other signals and sensors that are not being spoofed, to maintain accurate positioning. The user can also employ the receiver to try to identify the direction from which the spoofing signals are originating.

  • Launchpad: The latest in GNSS, survey and UAV products

    OEM

    GPS Firewall

    Protects critical infrastructure from spoofing and jamming

    The BlueSky GPS Firewall is designed to provide security protection for GPS-delivered position, navigation and timing (PNT) data. It can be deployed in-line between any standard GPS antenna and stationary GPS receiver to provide protection against GPS signal incidents, both intentional or accidental, before they enter a GPS receiver system. BlueSky GPS Firewall filters the GPS signal in real time, removing anomalies before the signal is consumed by the downstream GPS receiver. This creates an intelligent and secure barrier against jamming and spoofing, and prevents the GPS receiver from being impacted by such incidents. It incorporates an Ethernet interface for remote management and monitoring and includes a secure web interface for configuration and set-up. Evaluation kits are available in advance of full production release, both in response to the growing number of GPS incidents and their potential threat to critical infrastructure.

    Microsemi, www.microsemi.com

    Low-noise amplifiers

    LNA upgrades enable expanded GNSS reception

    Four new models of high-performing wideband low noise amplifiers (LNAs) are now available for choke-ring antennas, with options of 35-dB and 50-dB gain. The LNAs are designed for upgrading existing choke-ring antennas with Dorne Margolin/EDO elements to receive new and expanding GNSS signals. The LNAs provide consistent gain across the full bandwidth and include filters for suppression of out-of-band interfering signals, such as cellular LTE and Iridium signals, while maintaining a low noise figure, high third-order intercept point, small group delay and low power consumption. The enclosure is designed to fit a wide variety of currently deployed choke-ring antennas.

    Tallysman, www.tallysman.com

    GNSS-inertial boards

    OEM boards for high-precision guidance and control

    The BD GNSS family of boards includes the BD940 GNSS and GNSS-inertial boards and new BD990 GNSS, GNSS-heading and GNSS-inertial boards. The BX940 and BX992 models are available in a rugged enclosure (pictured) for applications in harsh environments. The BD GNSS boards offer simple connectivity and configuration, allowing system integrators and OEMs to easily add GNSS positioning and orientation — with the ability to upgrade its capabilities — using the same board footprint, connectors and software interface for specialized and custom hardware solutions. The compact boards include a broad range of receiver capabilities, from high-accuracy GNSS-only to full GNSS-inertial features for positioning and 3D orientation. Firmware options are upgradeable, allowing functionality to be added as requirements change. The boards are designed for UAVs, autonomous vehicles, fleet management and aviation.

    Trimble, www.trimble.com

    GNSS RTK board

    Upgraded with improved functionality

    The Precis-BX306 RTK board (pictured: Precis-BX306 board easy kit) has been upgraded with new and improved GPS and GLONASS functionality. The new version supports up to 20-Hz real-time kinematic (RTK) solution and raw measurement output, which can be integrated with autopilots and inertial navigation units. With improved algorithms, the new Precis-BX306 demonstrates an ability to quickly fix a 30-km baseline. Stable fix rate is achieved when under tree canopy, in urban canyons and other challenging environments. This latest version of Precis-BX306 is pin-to-pin compatible with major GNSS boards in the market, offering a flexible interface. Event mark and PPS are supported as always.

    Tersus GNSS, www.tersus-gnss.com

    SURVEY & MAPPING

    Radio modem

    Offers advanced radio connectivity with GNSS receivers

    The R4S-BT UHF radio provides an external option for use with the Sokkia GCX receiver line. The UHF multichannel radio modem has a tuning range of up to 70 MHz. It features an IP67 certified housing with internal batteries designed to be easy to carry with versatile mounting options. The radio modem makes the GCX GNSS receiver a more scalable and modular solution for situations without a network connection or when long-range Bluetooth technology is not enough on its own. Survey and mapping professionals can add the radio modem to extend the range between the base and rover. Connectivity options include wireless data transfer and USB connections.

    Sokkia, sokkia.com

    Survey UAV

    Programmable via computer

    The Triumph-F1 Survey UAV and Receiver is based around a geodetic GNSS receiver with 864 channels. When used on the ground, the receiver can function as base or rover. It includes eight propeller motors, a sim card slot, two micro SD card slots, USB connector, satellite tracking and communications indicators, flight and gyro status indicators, storage and selector for saved flight patterns, up to four antennas including Bluetooth and Wi-Fi, four angled cameras and a downward-facing high-precision camera for photogrammetry.

    JAVAD GNSS, www.javad.com

    GNSS smart antennas

    Next-generation multi-frequency

    The S321+ and C321+ smart antennas are upgrades to the previous versions S321 and C321 and offer added benefits. Powered by the Eclipse P326 OEM board, the smart antennas support 394 channels and can simultaneously track all satellite signals including GPS, GLONASS, BeiDou, Galileo and QZSS. The boards come with two hot-swappable lithium batteries providing up to 12 hours of operation. The S321+ and C321+ combine Hemisphere’s Athena GNSS engine and Atlas L-band correction technologies with a new customer-friendly web user interface. Both antennas meet IP67-standard requirements. The S321+ and C321+ come in two versions, with 4G LTE optimized for either North American or international locations. The S321+ is designed for use in land or marine survey, GIS, mapping and construction. With the SureFix advanced processor, the S321+ delivers high-fidelity RTK-quality information. The C321+ is designed for construction environments, and can be paired with Hemisphere’s SiteMetrix software that helps manage construction jobsite activities.

    Hemisphere GNSS, hemispheregnss.com

    Topography software

    Integrates data from a variety of sensors in one platform

    X-PAD Office Fusion is an all-in-one office software combining data from multiple sensors into a single interface. It manages, combines and processes data from GNSS receivers, total stations, laser scanners and other sensors, whether from GeoMax or another provider. There is no need to export the data from one program to another, and X-PAD also offers all CAD features. The program handles a multitude of different types of data: measurements, coordinates, drawings and point clouds. Large quantities of data can be managed in the fastest way with maximum accuracy. The software automatically detects the common points between the point clouds and performs a first rough alignment. The Bundle Adjustment feature performs the final and accurate alignment in order to reduce errors. Personalized reports are then created with little effort.

    GeoMax Positioning, www.geomax-positioning.com

    TRANSPORTATION

    Public transportation

    Insight for agencies and passengers

    The TSO Public Tracker provides public transportation riders with a variety of GPS-based monitoring capabilities. Riders can view exact locations and information on a variety of public vehicles. Passengers can view on a single screen the whereabouts of connected-fleet vehicles in real time. The tracker can be used by agencies of all sizes and in different geographical locations. The related TSO Mobile App provides route information, current and historical location updates in different map views through Google Maps, and more. TSO Mobile’s transportation solutions also provide agencies with driver reports based on customized behavior metrics to improve driver behavior.

    TSO Mobile, www.tsomobile.com

    Freight tracking

    Location of cargo in transit

    Omnitracs Virtual Load View (VLV) provides brokers, shippers and carriers with direct access to the position data of assets carrying their freight, allowing them to easily track loads. Position data about the load is either shared from the Omnitracs Intelligent Vehicle Gateway (IVG) or Mobile Computing Platform (MCP) unit, or if no Omnitracs unit is available, through the VLV Mobile smartphone application, which the driver can download from the iOS and Android app stores. VLV can also be directly integrated into a company’s back office system, so employees are not required to learn and access a new platform. Brokers and shippers can identify loads that are behind schedule so they can make the proper adjustments in a timely manner.

    Omnitracs, www.omnitracs.com

    UAV

    Mapping drone

    For survey-grade photogrammetry

    The lightweight fixed-wing UX11 UAV combines a powerful integrated onboard system, industry-grade sensors, limitless communication range and PPK centimeter-level positioning. It carries enough onboard computing power to access and process pictures, then send them to the operator in real-time. It will run automated quality checks on the images (such as blur detection or overlap checks) to help ensure the operator is acquiring quality data. Its redundant communications system includes a proprietary line-of-sight radio and 3G/4G connectivity between the ground-control station and the UAV using a worldwide machine-to-machine pre-paid plan. The UX11 is ready for beyond visual line-of-sight (BVLOS) flights with unlimited range and adds a new level of safety with this communication link.

    DelAir, delair.aero

    Super digital camera

    Super 35 Camera for Professional Aerial Cinematography

    The Zenmuse X7 UAV camera features superior image quality, interchangeable lenses and a new post-production color system. The Super 35 digital film camera is designed to work with the DJI Inspire 2 drone. The Zenmuse X7 features 14 stops of dynamic range for more detail in low-light conditions. Its low-noise image capture enhances grading flexibility by preserving details in both highlight and dark areas while enabling a shallow cinematic depth of field. It is capable of shooting 6K CinemaDNG RAW or 5.2K Apple ProRes at up to 30 frames per second (FPS), as well as 3.9K CinemaDNG RAW or 2.7K ProRes at up to 59.94 FPS to integrate into industry-standard post-production workflows.

    DJI, dji.com

    Charging Station

    For remote BVLOS missions

    The Atlas NEST smart protective charging station is designed for autonomous beyond visual line-of-sight (BVLOS) operation of the Atlas Pro drone platform. The Atlas NEST is a landing, protective charging station that extends flight range and provides constant drone readiness in remote locations. When the Atlas Pro UAV requires new batteries, it can autonomously land in a NEST charging station where a robotic arm changes the drone’s batteries, allowing the Atlas Pro to continue flying to mission completion. The Atlas NEST can be stationary or motorized.

    Atlas Dynamics, www.atlasdynamics.eu

    UAV for heavy payloads

    VTOL lift-off followed by tilt to fixed wing in flight

    The WingtraOne vertical take-off and landing (VTOL) UAV bridges the gap between traditional multi-rotors and fixed-wing drones. It takes off and lands vertically like conventional multirotors, but once in flight, the drone tilts forward to fly like a fixed-wing aircraft. Being able to carry a heavy payload such as the Sony RX1RII, the drone offers high mapping accuracy, while covering an area of 980 acres (400 Ha) at 3 cm/px (1.2 in/px) GSD or the equivalent of 570 football fields. The WingtraOne is available in use in Europe, China, the United States and Australia for applications ranging from surveying and precision agriculture to glacier monitoring.

    Wingtra, wingtra.com

  • Javad presents Triumph-F1 at Intergeo 2017

    Javad GNSS’ Javad Ashjaee offers a rundown on the company’s Triumph-F1 unmanned aerial vehicle at Intergeo 2017, which took place Sept. 26-28 in Berlin, Germany. According to the company, the Triumph-F1 is a field-tested high-precision geodetic GNSS receiver that includes four battery compartments, four angled documentation cameras and more.

  • GNSS Market 2017 report released

    MarketReports.biz has published a detailed market research study focused on the GNSS Market across the global, regional and country level.

    The GNSS Market 2017 report provides a 360-degree analysis of the market from the point of view of manufacturers, regions, product types and end industries.

    The research report analyses and provides the historical data along with current performance of the global GNSS industry, and estimates the future trend of GNSS market on the basis of this detailed study. The study shares “GNSS Market” performance both in terms of volume and revenue.

    Companies mentioned include Harxon Corporation, NovAtel, Trimble, Tallysman, JAVAD GNSS, Stonex, Sokkia, Spectracom and Leica Geosystems.