Author: Tracy Cozzens

  • Sen. Inhofe introduces bill to make Ligado pay everyone harmed

    Sen. Inhofe introduces bill to make Ligado pay everyone harmed

    The bipartisan RETAIN GPS and Satellite Communications Act seeks to compensate all GPS and satellite communications users harmed by the April 2020 Ligado Order from the FCC.

    Sen. Inhofe with his staff introduces the RETAIN GPS and Satellite Communications Act. (Photo: RNTF}
    Sen. Inhofe introduces the RETAIN GPS and Satellite Communications Act. (Photo: RNTF)

    On June 23, Senator Jim Inhofe (R-OK) held a press event on the lawn of the U.S. Capitol. There he announced his introduction of the “Recognizing and Ensuring Taxpayer Access to Infrastructure Necessary for GPS and Satellite Communications Act” or the “RETAIN GPS and Satellite Communications Act.”

    Inhofe is the ranking member of the powerful Senate Armed Services Committee. That committee’s chair, Senator Jack Reed (D-RI), is a co-sponsor, as are Senators Tammy Duckworth (D-IL) and Mike Rounds (R-SD).

    The bill has several provisions, all of which are aimed at ensuring anyone using the frequencies the Federal Communications Commission (FCC) allocated Ligado in April 2020 will compensate all GPS and satellite communications users that are harmed.

    This would pose a significant increase in financial liability for Ligado. Under the current FCC order, is only responsible for reimbursing the federal government for costs to modify systems and replace equipment.

    Many see this provision as manifestly unfair. “The FCC is requiring Ligado to pay damages to federal equipment, so the company should also pay damages to equipment owned by ordinary Americans,” said George Washington University economics professor Diana Furchtgott-Roth.

    “With Ligado 5G transmitters overwhelming GPS signals, pipeline maintenance and systems operations would be affected. Plus, private pilots might find that navigation technology does not operate, joggers might find that their health trackers ceased to work, and firefighters might not be able to get to their destinations.”

    She estimates the cost of damage to non-federal entities to run into the billions of dollars. Furchtgott-Roth previously served as and Acting Assistant Secretary for Economic Policy at the Department of Treasury and Deputy Assistant Secretary at the Department of Transportation.

    The FCC decision was, and remains, controversial. Seven different petitions to reconsider were filed by various organizations and coalitions, including the National Telecommunications Information Agency (NTIA) on behalf of the entire executive branch.

    The FCC has yet to respond to any of the petitions, though it has denied requests to stay its order pending resolution of concerns.

    Inhofe has long been concerned about the FCC’s action. As then-chair of the Senate Armed Services Committee, he held hearings, issued press releases, and made public statements aimed at Ligado’s financial backers and potential backers. All warn of disastrous consequences should Ligado’s plan for transmissions in the bands adjacent to GPS be put into operation.

    Inhofe also ensured several provisions were included in the 2021 National Defense Authorization Act (NDAA) that addressed the FCC’s action. These include:

    • A requirement for the Department of Defense (DOD) to estimate and report to Congress the cost of damage to department systems as a result of the FCC order.
    • Prohibiting use of department funds to upgrade or modify military equipment to make it resilient to interference caused by broadcasts in the spectrum allocated (the FCC order requires this to be funded by Ligado).
    • Prohibiting DOD from contracting with any entity using the frequency bands allocated to Ligado unless the Secretary of Defense certifies the use will not interfere with GPS services.
    • Requiring the Secretary of Defense to contract with the National Academies of Sciences, Engineering, and Medicine for an independent technical review of the FCC order.

    More information about the proposed “RETAIN GPS and Satellite Communications Act” is available at the Senator’s website.


    Dana A. Goward is President of the Resilient Navigation and Timing Foundation. The foundation has petitioned the FCC to reconsider its decision regarding Ligado Networks.

  • Seen & Heard: Ingenuity’s PNT hiccup, Avengers assemble!

    Seen & Heard: Ingenuity’s PNT hiccup, Avengers assemble!

    “Seen & Heard” is a monthly feature of GPS World magazine, traveling the world to capture interesting and unusual news stories involving the GNSS/PNT industry.


    Integrity sits safely on Mars following an in-flight anomaly. (Photo: NASA)
    Integrity sits safely on Mars following an in-flight anomaly. (Photo: NASA)

    PNT Issue Rocks Ingenuity

    The Mars drone Ingenuity uses an inertial measurement unit (IMU) to track position, velocity and attitude. The IMU works with the rotorcraft’s navigation camera, which feeds images into the system. About 54 seconds into Ingenuity’s sixth flight on May 22, a glitch in the pipeline of images delivered by the camera caused Ingenuity to buck. The glitch caused a single image to be lost, resulting in all later navigation images being delivered with inaccurate timestamps. Ingenuity’s navigation system attempted to correct itself due to “phantom errors,” but the copter still managed to land within 16 feet (5 meters) of its target location. The Perseverance rover snapped an image of its flying companion the next day. The timing vulnerability is being addressed.


    The versatility of the ZEB-Horizon device enabled the Deep Time team to map the complex and challenging environment. (Photo: GeoSLAM)
    The versatility of the ZEB-Horizon device enabled the Deep Time team to map the complex and challenging environment. (Photo: GeoSLAM)

    Measuring Deep Time and Space

    Geospatial 3D mapping specialist GeoSLAM provided the technology to scan one of Europe’s largest caves as part of the Deep Time isolation study. For 40 days, 15 participants set up camp in the Lombrives cave in southwestern France with no clocks or sunlight, and zero contact with the outside world. Conducted by the Human Adaptation Institute, the experiment aimed to gain insight into human adaptability to isolation. For their first task, the “deeptimers” used the ZEB-Horizon to conduct a digital scan of the 3-km Lombrives cave — a system consisting of both narrow passages and expansive chambers up to 70 meters in height, formed more than 125 million years ago.


    Photo: Nearmap
    Photo: Nearmap

    Avengers Assemble!

    On June 4, Disney unveiled its Avengers Campus at its California Adventure park. Aerial image provider Nearmap, which has been flying over Disneyland and California Adventure twice a year since 2014, shared a bird’s-eye view of the park’s new area, which replaced “A Bug’s Life.” Nearmap also shared images comparing the crowd size in 2019 before COVID-19 to the reopening limit of 25% capacity in April.


    Photo: Geoscience Australia
    Photo: Geoscience Australia

    Tasmania First

    As part of the Positioning Australia program, Geoscience Australia is building new GNSS ground stations. The first new station was recently completed outside the town of Derby, Tasmania. This new station joins 10 existing stations in Tasmania, providing widely available GNSS-based precise positioning signals. To access the service, users can connect to a service provider offering a fully supported service with system integration; users with specialized equipment and the technical expertise to integrate GNSS positioning can connect directly to the station via Geoscience Australia’s GNSS Data Centre.

  • Skyward collaborates with Pix4D

    Skyward collaborates with Pix4D

    Screenshot: Skyward
    Screenshot: Skyward

    Skyward, a Verizon company, has announced its integration with Pix4D, a photogrammetry software suite for drone mapping. The partnership gives customers the ability to turn drone data into 2D maps and 3D models.

    Enterprises and drone pilots can now plan flights, receive FAA approval to fly in controlled airspace (LAANC), fly with Skyward’s InFlight ground control station, and process data using Pix4D from within the Skyward platform.

    Skyward Mapping & Modeling, powered by Pix4D, enables customers to create, view, measure, and export 2D orthomosaic maps and 3D photogrammetric models right from Skyward’s web app. With the processing power of Pix4D, Skyward customers can get business-ready data sets through a seamless plan, fly, process workflow.

  • Mapping rights-of-way subject of July 13 virtual conference

    Mapping rights-of-way subject of July 13 virtual conference

    Photo: Jordanlye/iStock/Getty Images Plu/Getty Images
    Photo: Jordanlye/iStock/Getty Images Plu/Getty Images

    The 2021 Right-of-Way Asset Mapping Exchange is an interactive online Virtual Conference Experience focusing on innovation in asset inventory and mapping that supports all phases of infrastructure lifecycles. It takes place July 13 and is free of charge.

    The event provides hands-on actionable information on a variety of current and emerging technologies. Via presentations, discussions and one-on-one meetings, the event gives those who attend an opportunity to learn from and engage with technology and experts in a wide range of disciplines, and some of their key clients, as well as peers and colleagues.

    Moderator of the event is Matteo Luccio, GPS World editor in chief. Speakers include:

    Why ROW Asset Mapping?

    ​Right-of-way (ROW) corridors, especially in urban areas, are densely populated by many public and private infrastructure features — overhead electric and telephone wires, street-level parking meters, signage, traffic sensors, underground fiber-optic cables, water mains, natural gas pipes and sewers. They are constantly changing environments, as additional poles, signs and conduits are installed and old ones are replaced with newer ones to restore service after storm damage.

    Yet public works and utility managers, engineers and planners need to know what each stretch of each ROW corridor contains at any given moment, especially as they work to make our cities “smarter.” Hence, the Sisyphean task of mapping these assets.

    Fortunately, the technology to map ROW assets is rapidly improving. Platforms for data collection include vehicles driving at normal traffic speeds, UAVs and manned aircraft. Sensors include digital cameras, lidar scanners and ground-penetrating radar.

    Visualization tools include augmented reality, virtual reality, mixed reality and models ranging from small 2D and 3D ones of individual features up to digital twins of buildings and, eventually, entire cities. Increasingly, the tedious work of identifying and classifying features is being delegated to automated feature extraction software, a form of artificial intelligence.

    The conference will discuss

    • Comparing 2D and 3D visualization tools.
    • Explaining the benefits of 3D models as an advanced spatial analysis tool for urban planning.
    • Exploring the future of smart cities and digital twins.
    • A light equity study and pole inventory in the context of the transition to LED lighting.
    • How a two-man team can capture 500 miles worth of utility data in two weeks.

    Registration is free.

  • 1Spatial updates 1Integrate and 1Data Gateway for geospatial workflows

    1Spatial updates 1Integrate and 1Data Gateway for geospatial workflows

    1Spatial logo1Spatial is making complex workflows easier to manage with the latest releases of its core products 1Integrate and 1Data Gateway. 1Spatial is a global geospatial software and solutions company.

    1Data Gateway 2.4 now has an extended REST API enabling automated submission of data from other applications, while maintaining access control and security of the data supply chain. Submission metadata can be passed back into 1Integrate sessions for downstream processes and analysis. 1Integrate 2.10 can also be configured to “fast-track” certain sessions onto higher priority engines, ensuring important submissions are not left queuing behind other routine jobs.

    “Even though 1Data Gateway is primarily a user portal to our rules engine, the addition of the Submission API will allow our customers to integrate the power of 1Data Gateway into automated workflows and access the rich statistical data collected from the submissions,” said Ricardo Cifres, 1Data Gateway product manager.

    UK Contract Awarded

    Following a competitive tender and in collaboration with Version 1, a global IT services and solutions company, has signed a multiyear contract with the United Kingdom Department of Environment, Food and Rural Affairs (DEFRA) to provide a managed service for the Rural Payments Agency’s (RPA) Rural Payments Service and Land Management System (LMS).

    The contract will provide a recurring managed service enabling DEFRA and the Rural Payments Agency to deliver its current Basic Payment and Countryside Stewardship Schemes. In addition, the new contract enables 1Spatial and Version 1 to support RPA and DEFRA through Agricultural Transition.

    1Spatial has worked with RPA over the past five years to support and develop its Land Management System, an ecosystem of IT components, processes and data, including 1Integrate software. The LMS is RPA’s key control system used as a remote-sensing monitoring tool and to master the land registration data used for subsidy-scheme validation and agricultural policy implementation.

  • RAND: Federal investment in timing network for GPS backup likely worthwhile

    RAND: Federal investment in timing network for GPS backup likely worthwhile

    Study’s emphasis, timing of release, work against that, some say

    timing architecture network PNT futuristic
    Image: Panuwat Sikham/iStock/Getty Images Plus/Getty Images

    The stated goal of a recently published RAND study was to answer a question from Congress about what should be done to back up and complement the nation’s GPS. One of its findings was that the government should consider investing in a national timing network.

    Yet the study’s report emphasizes the wrong things, according to some. So much so that it is working against establishment of a timing network to reinforce GPS.

    Report Misleading

    “The main thrust of the study’s report is that we don’t need another GPS-like, system,” said Pat Diamond. “That has always been fairly obvious. I don’t know anyone who has ever advocated for duplicating GPS.” Diamond is CEO and founder of a network company and is a member of the president’s National Space-based Positioning, Navigation, and Timing (PNT) Advisory Board.

    “By pounding so hard on the ‘don’t duplicate GPS’ drum, RAND hides its more important findings,” he said. “The public message comes across as there is no need to do anything.”

    Diamond thinks the study should have better highlighted the things the federal government should do. “That is really the question Congress wanted answered,” he said.

    RAND’s study supports four federal initiatives that “… appear to be cost-effective or close to cost-effective.” Included are a “timing-only” GPS-backup and support of high performance “geographically limited” systems.

    Timing Essential, GPS Backup Needed

    Cover: NSTAC
    Cover: NSTAC

    GPS timing signals are used in a wide variety of technologies including cell phones, IT networks, digital broadcast, first responders’ hand-held radios, and to synchronize electrical grids. Yet these signals from space are weak and easily disrupted.

    A recommendation for a GPS timing backup was part of a report to President Biden last month from the National Security Telecommunications Advisory Committee (NSTAC). The group of telecom CEOs and senior executives urged the administration to fund “a National Timing Architecture.”

    A timing backup for GPS is also a long-standing recommendation of the president’s National Space-based PNT Advisory Board.

    “There are few things more important to tech infrastructure today and tomorrow than timing,” according to Marc Weiss who was a lead researcher at the National Institutes of Standards and Technology for 35 years.

    Weiss, along with Pat Diamond, co-authored the white paper “A Resilient National Timing Architecture” cited in the NSTAC report to the president.

    Cost-Benefit Might Be Wrong Approach

    Cover: Thomas Dunne Books
    Cover: Thomas Dunne Books

    The RAND study was a cost-benefit analysis, which some have argued was not the best approach.

    “Cost-benefit is always tricky,” says Greg Winfree, Director of the Texas Transportation Institute. “There are always a lot of assumptions. Small changes to any of the inputs can radically change the outcomes.” Winfree led civil PNT efforts during the Obama administration as an official at the Department of Transportation (DOT).

    “One of my big concerns is that GPS is so important to so many things in America, that it is one of the most attractive targets for our adversaries. At least one alternate PNT that most people can access takes the bullseye off GPS,” Winfree said.

    Scott Pace, director of the Space Policy Institute at George Washington University (GWU) agrees a diversity of PNT sources is important. At a recent GWU event, Pace commented having an alternative to GPS will contribute to national security and improve global stability. It will “lower the pressure on us to escalate and respond” should GPS satellites be damaged, or services disrupted. Pace was the Executive Secretary of the National Space Council in the Trump administration.

    In the book The Russia Trap, author George Beebe has similar concerns, citing the lack of a backup for GPS as a technology resilience gap. Russia, China, and Iran all have terrestrial backups for PNT signals from space while the United States does not. Beebe says this is a weakness that can be exploited and could lead to an escalating series of exchanges resulting in all-out war.

    Government Investment in Location Services

    The RAND study suggestion for the government to invest in highly accurate PNT services in some limited geographic areas cited emergency responders’ needs for precise location. Federal investment will likely be required, it says, as commercial entities cannot make a business case everywhere service is needed.

    GWU economics professor Diana Furchtgott-Roth has written that the federal government needs to provide a complement to GPS. She served as a Deputy Assistant Secretary at DOT from 2019 to 2021 leading civil PNT issues for the government.

    “Without federal participation, commercial providers won’t ensure adequate resilient services for everyone. Some sectors, such as finance, will have it, but others won’t. This is a matter of national and homeland security. The RAND report did not emphasize this sufficiently.”

    Questionable Timing and Motivation

    “This is a particularly bad time for a confused message,” said a congressional staff member speaking about the RAND study. “Congress mandated a timing backup for GPS in 2018, though the project was never funded. There is real momentum this year to provide that funding, but the way this study reads works against that.”

    Others see the structure of the study’s report and the timing of its release as a deliberate effort to derail budget negotiations. One retired Department of Homeland Security (DHS) official sees a pattern but is at a loss to explain the motivations behind it.

    “RAND’s study was completed in 2019, and it was used as the basis for a DHS report to Congress in April 2020. But DHS didn’t tell Congress about RAND’s findings on a timing network and other actions the government should take,” they said.

    “The study being made public now saying ‘do not back up GPS’ smells like a deliberate attempt to derail funding for the timing system. Something two presidential advisory boards, telecom leaders, RAND and so many others agree is needed.”

    “Why would someone want to do that?” they asked. “Why would they want to keep America’s PNT so much weaker than China’s, Russia’s, and those of other countries?”

  • New version of OxTS Georeferencer provides more lidar integration

    New version of OxTS Georeferencer provides more lidar integration

    Oxford Technical Solutions (OxTS) has launched the latest version of its lidar georeferencing software, OxTS Georeferencer 1.4.

    OxTS is taking steps to improve surveyor’s user experience, streamline survey processes, and allow surveyors to get to work faster, while simultaneously improving results.

    OxTS Georeferencer fuses position, navigation and timing (PNT) data from an OxTS inertial navigation system (INS) with raw lidar data to output highly accurate 3D point clouds. The software uniquely makes use of navigation diagnostic data that provides surveyors with lidar point-error estimation. This error estimation allows surveyors to focus their analysis on viewing parts of their survey based on estimated errors in points, helping them understand if there are any parts of a survey that need to be looked at again.

    Rather than relying on surveyors to integrate their chosen lidar sensors themselves, OxTS has pre-integrated a number of sensors natively. Previous versions of OxTS Georeferencer integrated widely used sensors from Velodyne, Ouster and Hesai. The pre-existing integrations allow surveyors to focus on surveying rather than ensuring the two datasets work in tandem.

    An optional boresight calibration tool uses data to calibrate the angles between the navigation and survey devices.

    Highlights of OxTS Georeferencer 1.4

    Version 1.4 of OxTS Georeferencer integrates new lidar sensors from Hesai. A previous version released in November 2020 was the first integration of the Pandar40P Hesai lidar. Now, seven new Hesai sensors are being integrated:

    • Pandar40 (beta)
    • Pandar40M (beta)
    • Pandar64 (beta)
    • PandarQT (beta)
    • Pandar128 (beta)
    • PandarXT-16 (beta)
    • PandarXT-32 (tested)

    OxTS Georeferencer 1.4 also features several new developments to enhance the user experience and make it more intuitive.

    3D Hardware Setup Viewer. To help input the correct relative rotation angles, specific lidar models will be available to view depending on the surveyor’s choice of lidar. The model will represent the lidar sensor in appearance, size and orientation within OxTS Georeferencer with respect to the OxTS INS for quick and intuitive configuration.

    The OxTS Georeferencer Hardware setup viewer shows the OxTS xNAV650 INS alongside a Hesai lidar sensor. (Image: OxTS)
    The OxTS Georeferencer Hardware setup viewer shows the OxTS xNAV650 INS alongside a Hesai lidar sensor. (Image: OxTS)

    Time overlap chart. Georeferencer 1.4 reintroduces a time overlap chart that allows surveyors to visualize their survey route on a map and select specific start and end times. This enables surveyors to control the part of the route they would like to view, with the added ability to georeference only that section of the survey.

    The OxTS Georeferencer time overlap chart. (Image: OxTS)
    The OxTS Georeferencer time overlap chart. (Image: OxTS)

    Lidar CAD models will make it easier for surveyors to calculate and input accurate LIR angles into OxTS Georeferencer, further streamlining the survey process.

    The time overlap function will provide surveyors with even more flexibility — this time after the survey. Giving surveyors the ability to choose the start and end times of their survey, and therefore which part of the survey to georeference, enables full control of what to present to their peers.

    These new features, coupled with those already present in OxTS Georeferencer (optional boresight calibration and point uncertainty analysis) give surveyors the flexibility and control they need to produce the best possible lidar surveys.

  • Honeywell debuts MEMS sensor to help small sats navigate

    Honeywell debuts MEMS sensor to help small sats navigate

    The HG4934 Space Rate Sensor is compared in size to a typical smartphone. (Photo: Honeywell)
    The HG4934 Space Rate Sensor is compared in size to a typical smartphone. (Photo: Honeywell)

    New, smaller sensors provide high-performance navigation at a low cost with less power consumption, company said.

    Honeywell has unveiled a new rate sensor to help small satellites navigate increasingly crowded orbits above the Earth’s surface. The new micro-electro-mechanical system (MEMS)-based product provides low cost and power consumption in a smaller size than previous Honeywell offerings, while maintaining high performance levels. It is suitable for customers building smaller and lower-cost satellites, according to Honeywell.

    Honeywell’s HG4934 space rate sensor is roughly the same size and weight (145 grams) as a baseball. Compared to Honeywell’s previous rate sensors, it consumes only one-fifth the electric power, is more than 32 times lighter, and is 60 times smaller. It also is more tolerant of radiation, a key attribute in space.

    “With this new sensor, our customers can build smaller, lower cost satellites that are just as capable and reliable as their traditional predecessors, which will allow them to field new satellite technologies like 5G telecommunications or high-bandwidth global Internet,” said Mike Elias, vice president and general manager, Space, Honeywell Aerospace. “Furthermore, the number of satellites is only increasing, which leads to more crowded orbits. It’s critical that our customers have highly precise navigation solutions to help prevent accidents, which could knock functional satellites out of orbit.”

    A space rate sensor, also known as an inertial reference unit or IRU, is an inertial sensor composed of three gyroscopes that work together to sense rotation rates. They determine an aircraft or spacecraft’s change in rotational attitude over time and allow it to move from one location to another without using any external information. It can also serve as a backup solution to provide redundancy if other navigation systems fail.

    Celestial navigation options like star trackers are a popular method of obtaining pointing directions for satellites and spacecraft. This form of navigation uses angular measurements between objects in space (stars, planets, etc.) and the horizon to calculate location. However, sometimes these star trackers are blinded by the sun or affected by thruster gases. In this case, Honeywell’s HG4934 can act as a secondary method of attitude determination.

    Honeywell’s HG4934 Space Rate Sensor is available now for commercial, defense, and science applications. The first deliveries to customers began at the end of 2020.

  • ESA seeks ideas to augment satnav with imaging sensors, 3D maps

    ESA seeks ideas to augment satnav with imaging sensors, 3D maps

    NAVISP includes projects for autonomous and connected driving. (Image: ESA/F. Bagiana)
    NAVISP includes projects for autonomous and connected driving. (Image: ESA/F. Bagiana)

    The European Space Agency (ESA) is issuing a call for ideas to overcome GNSS service gaps in urban canyons by using imaging and 3D mapping technology. A workshop to discuss the call for ideas will be held virtually on July 6.

    According to ESA, the growing availability of high-quality image sensors and high-fidelity 3D maps — such as those within smartphone mapping apps — offer a promising way to shrink the performance gap caused by urban canyons and multipath for future mobility applications in terms of ubiquity, reliability and resilience.

    NAVISP — ESA’s Navigation Innovation and Support Programme — specifically is seeking prospects for technology demonstrations of mobility tech to support applications such as  road, maritime transport and drones. The tech would provide assisted satnav by harnessing image sensors and 3D urban models. The proof-of-concept demonstration projects or national testbeds would facilitate introduction of this technology into commercial products.

    Use cases include private or public autonomous transportation in cities, including cars, trams, scooters, bikes, urban ferries, harbors, narrow waterway navigation and future passenger drones.

    Reflected satellite navigation signals (multipath) can degrade positioning performance, especially in urban canyons with numerous artificial surfaces. (Image: EUSPA)
    Reflected satellite navigation signals (multipath) can degrade positioning performance, especially in urban canyons with numerous artificial surfaces. (Image: EUSPA)

    The NAVISP project, called a “thematic window,” is titled “Assisted GNSS with Imaging Sensors and 3-D models for Mobility Applications.” The thematic window opened on June 10 and will close on Oct. 31. During its duration, ESA is offering dedicated support to companies interested in participating in the projects and submitting outline proposals.

    On July 6, the agency is hosting an online workshop with stakeholders to raise awareness about the initiative and clarify any issues interested companies may have. ESA will present the requirements of the Thematic Window and the application process. The workshop will include presentations from high-level experts covering market perspectives, techniques involved in the use of 3D models and imaging sensors, the state of the art of these technologies and latest advances in visual navigation and artificial intelligence applied to mobility applications.

    To register for the July 6 workshop, click here. The workshop agenda is available here.

  • Orolia GNSS simulators now support ultra-low latency of 5 ms

    Orolia GNSS simulators now support ultra-low latency of 5 ms

    Latest advancement from Skydel uses software-defined advantages to deliver real-time performance

    The Skydel Real-Time Performance graphs illustrate the software-defined engine’s low latency during a GNSS simulation. (Screenshot: Orolia)
    The Skydel Real-Time Performance graphs illustrate the software-defined engine’s low latency during a GNSS simulation. (Screenshot: Orolia)

    Orolia has announced the launch of its Real-Time Performance capability, which achieves an ultra-low latency of five milliseconds. The feature will be standard on all Skydel-powered GNSS simulators.

    Skydel is a software-defined simulation engine that powers Orolia’s advanced GNSS simulators including its BroadSim (available via Orolia Defense & Security) and GSG product lines.

    “Skydel is known by users for its intuitive nature and ability to be quickly redeployed for a variety of projects,” said Tim Erbes, director of engineering for Orolia Defense & Security. “Delivering Real-Time Performance with latency as low as five milliseconds further shows that Orolia is a market leader empowering our customers by exceeding their expectations.”

    Skydel’s software-defined architecture is designed to meet the demanding GNSS simulation testing requirements in the automotive, military, space and other high-tech industries. Skydel also supports hardware-in-the-loop simulations without sacrificing ultra-low latency and high-end performance.

    The user interface has a sophisticated dashboard showing Real-Time Performance graphs. The tool enables users to grade the simulator’s performance, interpret data, diagnose inefficiencies, and optimize scenarios on the fly. In a video tutorial, Orolia demonstrates how the simulation engine processes data and how easy it is to read the graphs through its visualization and precise indications. As the system reaches its limits, it remains stable and fully operational, preserving the integrity of the simulation.

    Erbes said the Real-Time Performance graphs not only instill confidence in the simulator, but also allow for better integration in the testbed.

    “For example, instead of just hoping their hardware-in-the-loop configuration is working, users can view the real-time data and see that low latency is being maintained,” he said. “This feature provides enhanced visibility not only into the performance of the simulation, but also into the reliability of the hardware-in-the-loop integration, resulting in a more robust solution. This is critical when generating complex environments with high dynamics, jamming, spoofing, repeating, and alternative PNT sensors.”

  • GAO Report checks defense on PNT tech

    GAO Report checks defense on PNT tech

    Cover: USGAO Report
    Download the GAO Report.

    A May report by the Government Accountability Office (GAO) explores Department of Defense (DOD) strategy for positioning, navigation and timing (PNT) technology to complement GPS. The 51-page report takes a comprehensive view of alternative PNT policy and leadership across the department.

    While GPS will remain the core of DOD’s PNT solution, it will use other PNT technology to complement GPS or as an alternative for when GPS is degraded or unavailable. DOD is exploring both improved sensors to provide relative PNT information, and external sources to provide absolute positioning and navigation.

    DOD also is working to create common standards and interfaces to help integrate and field new PNT technologies faster and at lower cost. DOD also is developing its PNT modeling and simulation capabilities to evaluate the performance of new PNT technologies.

    Challenges for DOD

    Officials from across DOD and experts told GAO that alternative PNT solutions are not prioritized within DOD. For example, there is no central program office responsible for developing the variety of alternative PNT technologies across DOD.

    DOD’s continued reliance on GPS, despite known GPS vulnerabilities to disruption, presents a challenge for obtaining sufficient support to develop viable alternatives. Defense officials and experts also said challenges in establishing clear PNT performance requirements hinder technology development.

    In response, GAO developed six policy options that may help address challenges with developing and integrating alternative PNT technologies. The policy options identify possible actions by policymakers, who may include Congress, federal agencies and industry groups.

    1. Increase collaboration. Consider mechanisms to coordinate across DOD to clarify responsibilities and authorities in prioritizing the need for alternative PNT technologies.
    2. Focus on resiliency. Consider selecting the most resilient technologies as the cornerstone of the PNT suite for military missions, rather than defaulting to GPS.
    3. Clarify requirements. Consider opportunities to clarify what level of PNT performance actually is needed for missions, rather than defaulting to requirements that match GPS performance.
    4. Coordinate with industry. Consider ensuring DOD and industry coordinate so that industry is prepared to meet DOD’s needs, and DOD can leverage industry advances.
    5. Institutionalize open architecture. Consider making the open architecture initiative more permanent, including providing funding.
    6. Analyze vulnerabilities. Consider having DOD conduct ongoing analysis of vulnerabilities of different PNT systems.

    The GAO reviewed technical studies, agency documents, and other key reports; interviewed government officials and researchers about alternative PNT technologies; and convened a three-day meeting of experts from government, non-governmental organizations, academia and industry.

  • Space Foundation announces details for 36th Space Symposium

    Space Foundation announces details for 36th Space Symposium

    Global space community convenes in person and virtually Aug. 23-26

    space symposium event logoSpace Foundation, a nonprofit advocate organization founded in 1983, is offering a hybrid in-person and virtual experience for its  36th Space Symposium. The event will take place Aug. 23-26 in person at The Broadmoor in Colorado Springs and virtually through Symposium 365 digital platform.

    “The past year has challenged us all, but the space community has demonstrated its perseverance and inspiration in countless ways,” said Space Foundation CEO Tom Zelibor. “The capabilities are now in hand for us to safely gather again in person, while expanding our reach to host attendees from around the world virtually and make them part of the Space Symposium experience.”

    Tom Zelibor, CEO, Space Foundation
    Tom Zelibor, CEO, Space Foundation

    Working with its multiple partners, corporate members, and stakeholders, Space Foundation has created a hybrid program for the first time in nearly four decades of Space Symposium operations that will allow for in-person and virtual attendance. The in-person assembly of global space leaders and innovators will be limited in its physical size to comply with public health ordinances, but the virtual assembly will allow unlimited, real-time and on-demand access to the event.

    “As the preeminent advocate and gateway for lifelong education, trusted information, and seamless collaboration, Space Foundation is doing everything we can to bring together this community of people and organizations engaged in space exploration and space-inspired industries that define the global space ecosystem,” Zelibor added.

    Registration and details are on the event website.