Spirent Federal announced a new positioning, navigation and timing (PNT) test capability commonly referred to as programmable power — or flex power — available at no additional cost to qualified customers under support. The new capability allows the user to apply flex power configurations to existing scenarios.
Flex power is the reallocation of transmit power among individual signals in GPS satellites, providing a countermeasure against GPS jamming. Spirent simulators fully support programmable power for M-code, Y-code and C/A (coarse acquisition) code.
“From the time that we ascertained the need for flex power simulation, to the delivery of a completed easy-to-use utility, was a very short time,” said Ellen Hall, president and CEO of Spirent Federal. “It is this kind of responsiveness that we strive for here at Spirent Federal, so we can pass along the benefits to our customers.”
Flex power is available on the Spirent GSS9000 GPS / GNSS constellation simulator.
Tallysman Wireless Inc. has added the TW162A automotive-grade smart power GNSS signal splitter to its line of GNSS accessories.
The Tallysman TW162A signal splitter supports the full GNSS spectrum: GPS/QZSS-L1/L2/L5, QZSS-L6, GLONASS-G1/G2/G3, Galileo-E1/E5a/E5b/E6, BeiDou-B1/B2/B2a/B3, and L-band correction service frequency band.
Vehicle rooftop antenna space is often at a premium, and mission applications often require more than one GNSS receiver. The TW162A supports this use case where one GNSS antenna provides the signal to two GNSS receivers.
It also offers key fail-over and fault-identification features.
First, the splitter accepts power from all attached GNSS receivers; if one receiver fails, the next attached receiver automatically provides power to the splitter and antenna.
Second, if the antenna fails and does not draw current, all connected receivers will sense a current draw lower than 1 mA, indicating an antenna fault.
The TW162A offers high performance in terms of noise figure, isolation and linearity. TW162A is built with Automotive Electronics Council AEC-Q100 certified components, ensuring a wide operational temperature range and a long service life. It has been rigorously tested and is packaged in a durable, compact and lightweight aluminum housing.
The TW162A is available with three Z or A+B+C FAKRA connectors.
The GP-L1-32-T-MNT GPS timing antenna with mount included, RHCP polarized, 1.571 to 1.61 GHz. (Photo: RadioWaves)
RadioWaves, an Infinite Electronics brand and a manufacturer of high-quality microwave antennas and accessories, has released a new series of GPS/GNSS timing antennas that cover L1 and L5 GPS bands.
The new series of GPS/GNSS timing antennas provide axial ratio and higher accuracy for the reception of satellite timing signals and reference frequencies for enhanced phase synchronization in precision network deployments.
The high gain, low noise figure of 2 dB and high out-of-band rejection provided by these antennas allows for the use of longer and cost-effective cables for easy and flexible installs. They also feature a VSWR less than 1.8:1 and are compatible with several existing mounting brackets. In addition, thee fully ruggedized, weather-sealed antennas are IP67 compliant for use in outdoor and marine environments.
The antennas come equipped with built-in surge protection and support a wide range of GNSS including GPS, GLONASS, BeiDou and Galileo, as well as Iridium. Increased position accuracy in densely populated urban areas, flexible installation, and improved system security make RadioWaves’ latest antenna offering a valuable system component, the company said.
Models include
GP-L1-L5-40-N, an L1+L5 GPS timing antenna, 1.166 to 1.218 GHz and 1.559 to 1.606 GHz
GP-L1-32-T, a L1 GPS timing antenna, RHCP polarized, 1.574 to 1.61 GHz
GP-L1-32-T-MNT, an L1 GPS timing antenna with mount included, RHCP Polarized, 1.571 to 1.61 GHz.
DJI Mavic 3 has better sensor, dual-camera system, omnidirectional obstacle sensing, smarter flight modes and longer flight times
Mavic 3 drone. (Image: DJI)
The new DJI Mavic 3 is an update of the company’s folding camera drone, providing comprehensive improvement and boosting performance for aerial photography.
The Mavic 3 has improved navigation and obstacle sensing systems. A powerful positioning algorithm improves hovering precision with signals from GPS, GLONASS and BeiDou satellites. This enables Mavic 3 to lock onto multiple satellite signals faster. The increased positioning precision also makes the drone less likely to drift in the air and more stable when shooting long exposures and time lapses.
For its obstacle sensing system, Advanced Pilot Assistance System (APAS) 5.0 combines inputs from six fish-eye vision sensors and two wide-angle sensors, which seamlessly and continuously sense obstacles in all directions and plan safe flight routes to avoid them, even in complicated environments.
The obstacle-sensing system also enables more intuitive subject tracking with the upgraded ActiveTrack 5.0. Previous iterations of ActiveTrack enabled the camera to follow a subject as it moved directly toward and away from the drone while remaining largely stationary as well as fly alongside a moving subject. ActiveTrack 5.0 allows Mavic 3 to move with the subject as it moves forward, backward, left, right and diagonally, and fly alongside as well as around a moving subject.
If the subject moves too fast and temporarily goes out of frame, visual sensors on the aircraft will continue to track and frame the subject intelligently and pick it back up when it reappears. These new directions enable much more fluid and diverse drone and camera movement while using ActiveTrack.
Other safety features include geofencing, which alerts drone pilots when they fly near sensitive locations; altitude limits to ensure pilots are aware of altitude restrictions; and the AeroScope Remote ID system that allows authorities to identify and monitor airborne drones in sensitive locations.
Mavic 3’s integrated AirSense system, first widely introduced in DJI Air 2S, warns drone pilots of nearby airplanes and helicopters transmitting ADS-B signals, so they can quickly fly to a safer location.
Hasselblad camera
Mavic 3 has a 4/3 CMOS Hasselblad camera and 28x hybrid zoom camera. Omnidirectional obstacle sensors have a 200-meter range, and redesigned batteries provide up to 46 minutes of flight time.
Upgraded hardware and software can process 5.1K video at 50 frames per second and support 4K/120 fps for high-quality results for slow-motion footage. An enhanced Mavic 3 Cine edition offers Apple ProRes 422 HQ encoding for richer video processing, with an internal 1TB SSD onboard for high-speed data storage.
DJI Mavic 3’s customized L2D-20c aerial camera embeds a professional-grade 4/3 CMOS sensor with a 24 mm prime lens in a sleek and compact form. Rigorous Hasselblad standards for hardware performance and software algorithms allow it to shoot 20-MP still images in 12-bit RAW format and videos in 5.1 K at 50 fps and 4 K at 120 fps. The higher video definition creates smoother footage and more generous cropping possibilities and allows for slow-motion video at 120 fps.
The larger image sensor gives Mavic 3 higher video resolution and dynamic range and more effectively suppresses noise in low-light environments. A native dynamic range of 12.8 stops helps retain more details in highlights and shadows, preserving rich visual information with a greater sense of depth and elevating imagery to a professional level. An adjustable aperture of f/2.8-f/11 is available to meet the needs of aerial photographers in a wide variety of lighting scenarios to get sharper and clearer images.
ADVA has introduced its OSA 5400 SyncModule embedded timing solution, designed to enable technology suppliers to integrate precise synchronization into their hardware. Its M.2 form factor can add crucial timing capabilities to switches, routers, open compute servers and other IT devices.
The OSA 5400 SyncModule provides GNSS, precision time protocol (PTP) and network time protocol (NTP) engines as well as comprehensive PTP and GNSS monitoring and assurance functionality. According to ADVA, the module can enable assured sub-microsecond timing in public and private networks as well as critical infrastructure.
“Our OSA 5400 SyncModule brings something completely new and very valuable to the market,” said Gil Biran, general manager, Oscilloquartz, ADVA. “For the first time, third-party technology manufacturers will be able to embed the most advanced synchronization capabilities into their designs and easily control them with our Ensemble Sync Director or their own management system.”
Featuring multiple interface options for easy integration, the OSA 5400 SyncModule comes with an open API. It can also be managed by ADVA’s proven Ensemble Sync Director management system.
“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.
Photo: Tesla
TESLA’S TUSSLES
Tesla has offered “full self-driving” on its cars since 2016, but most owners have never come close to experiencing a self-driving Tesla, with owners telling CNN Business that they’ve lost confidence in CEO Elon Musk’s predictions. Incidents of Teslas involved in accidents while on autopilot haven’t helped. In California in September, authorities arrested a woman for a DUI while her Tesla drove on autopilot, while in August, another Tesla on autopilot hit a parked police car in Florida. Unsurprisingly, the autopilot feature has increasingly come under scrutiny by U.S. regulators and lawmakers. Meanwhile, Musk announced a “Tesla Bot” humanoid robot prototype is coming in 2022.
Study author Lingqiu Jin tests the robotic cane. (Photo: Cang Ye, VCU/NIH)
MANEUVERING INDOORS
A robotic cane is being developed to help the visually impaired navigate indoors. The cane is equipped with a color 3D camera, an inertial measurement sensor and an on-board computer. When paired with a building’s architectural drawing, the device can accurately guide a user to a desired location with sensory and auditory cues, while helping the user avoid obstacles such as boxes, furniture and overhangs. Its development is funded by the National Institutes of Health and other agencies. Details of the design were published in the IEEE/CAA Journal of Automatica Sinica, under lead author Cang Ye (pictured), Virginia Commonwealth University.
Photo: Monterey Bay Aquarium
MAKING TRACKS WITH SEA OTTERS
Space Shop, a 3D print shop at NASA’s Ames Research Center in California, is printing a better tracker for wildlife. The prototype is being tested on sea otters at Monterey Bay Aquarium with the help of USGS. The GPS-enabled tracker is lighter and more accurate than current trackers; it costs less and is solar powered. It withstands a salt-water environment, and the occasional chomping from a sea otter’s strong teeth.
Photo: Garmin
NIGHT VISION? NO PROBLEM
Garmin has provided India’s defense forces with two handhelds equipped to receive the country’s NavIC signals. Both multi-GNSS handhelds also are equipped with altimeters, barometers and three-axis electronic compasses. The GPSMAP 66sr model has specialized military features, including compatibility with night-vision goggles so troops don’t have to remove their goggles to use it. The Indian Space Research Organization (ISRO) has asked Garmin to integrate NavIC into all of its upcoming satellite navigation devices.
The General Lighthouse Authorities (GLA) of the United Kingdom and Ireland has named Alan Grant to the top post of its research and development team. Grant assumed his new role on Nov. 1.
As part of his duties, he heads the GLA’s research and development program, considering existing and future maritime requirements and operational strategy. GLA Research and Development (GRAD) is tasked with improving maritime safety by developing innovative and cost-effective maritime aids-to-navigation (AtoN).
GRAD projects have included all aspects of AtoN including human and machine interaction, operational life and environment. The team has deep technical expertise and experience with automatic identification systems (AIS) , the VHF Data Exchange System (VDES) , eLoran, e‑navigation, GNSS, SBAS and visual signaling.
The organization is well known for its expertise in electronic navigation aids and was an important contributor to the MarRINav project. The project effort was funded by the European Space Agency and examined what combination of electronic aids to navigation are needed to ensure uninterrupted UK shipping.
Grant joined the GLA in 2003 and has worked on a variety of systems during his time with GRAD. He led a series of successful GPS jamming trials and the development of the multi-system radionavigation receiver performance standards, from initial concept to international recognition at the IMO. He continues to support resilient positioning, navigation and timing in maritime navigation at both technical and strategic levels.
Grant is a Fellow of the Royal Institute of Navigation, where he is a member of the council and served as vice president, 2019-2021. He is also a member of the U.S. Institute of Navigation and served on the ION Council, 2013-2017.
Grant chairs the International Association of Marine Aids to Navigation and Lighthouse Authorities (IALA) radionavigation services working group and is a member of several international standards bodies. He is a chartered engineer, a chartered physicist, and author of more than 120 journal papers, magazine articles, and conference papers.
Martin Bransby, the prior GRAD leader, has taken a position with Telespazio in the UK.
Longstone Lighthouse is situated on the Outer Farne Islands on the Northumberland Coast in Northern England. (Photo: ad_foto/iStock/Getty Images Plus/Getty Images)
The European Space Agency (ESA) and National Aeronautics and Space Administration (NASA) have publicly released a globally harmonized assessment of aboveground biomass — information vital for managing global climate change.
The Multi-mission Algorithm and Analysis Platform (MAAP) provides seamless access to aboveground biomass information from both NASA and ESA Earth observation data. The open-science tool is now fully operational and accessible online.
Circumboreal forest biomass density mapped at high spatial resolution (30 m) with NASA’s ICESat-2, the joint NASA/USGS Landsat-8 and ESA Copernicus Digital Elevation Model (DEM) data. This provisional product is representative of 2020 conditions and is an open-source science product created on the NASA-ESA MAAP platform that will be validated in the coming months. (Image: NASA/ESA)
MAAP is the culmination of a two-year NASA and ESA effort and reflects the cooperation between the two agencies under the NASA and ESA Joint Program and Planning Group (JPPG) Joint Working Group (WG) on Ground Segment and Operations.
The MAAP platform enables international scientists and researchers to collaboratively develop algorithms and code as well as analyze and visualize large datasets acquired from sources including satellite instruments, the International Space Station, and airborne and ground campaigns. The large data and high-performance computing required for MAAP, along with a shared code repository and catalog, are stored and managed in the cloud. MAAP capabilities are supported and shared between NASA and ESA.
“Biomass is the first ESA mission with open-source algorithms,” said Clement Albinet, ESA’s Biomass data quality manager. “Thanks to that, the community will be able to access all the source code, the test data and all the documentation, and will be able to contribute in a collaborative way to the improvement of the biomass products. MAAP will allow scientists to easily work with large datasets at a global scale and to finally focus on science.”
The initial application of MAAP focuses on aboveground biomass to help determine the size and carbon content of Earth’s forests. These data are vital for informing our understanding and forecasting of climate change, including regular updates to the Intergovernmental Panel on Climate Change (IPCC).
While biomass is the first application of MAAP, it can be adapted for collaborative exploration across the breadth of science data and scientific disciplines available through NASA, ESA and similar research agencies.
MAAP includes data from missions such as NASA’s Global Ecosystem Dynamics Investigation (GEDI) and the joint NASA/ESA AfriSAR campaign, and will eventually support data from upcoming NASA and ESA missions such as the joint NASA/Indian Space Research Organization SAR (NISAR) and ESA’s Biomass mission.
Several projects are producing continental to global biomass maps for 2020, including ESA’s Climate Change Initiative Biomass and JPSs global map, both at 100 m, as well as NASA’s GEDI 1-km map. GEDI, the Global Ecosystem Dynamics Investigation, is a spaceborne laser instrument that measures the structure of Earth’s forests in high resolution and three dimensions.
The world’s Earth observation biomass community is undertaking an exercise on MAAP aimed at resolving discrepancies between those products and producing harmonized estimates of biomass and uncertainty at a policy-relevant, jurisdictional-level scale.
Harxon is offering two new GNSS antennas for intelligent connected vehicles (ICV). ICVs are equipped with advanced sensors, controllers, actuators and other devices. They are enabled for intelligent information exchanges between the vehicle and everything (car, road, people, cloud), technology known as V2X.
The Harxon HX-AUST002. (Photo: Harxon)
The Harxon HX-AULT002. (Photo: Harxon)
The ICV antennas connect autos with GNSS, 5G, Wi-Fi, ultra-wideband and more. Both highly integrated high-performance multiband automotive antennas provide swift, reliable connectivity to meet the increasing demands of seamless communication experience for intelligent transportation system (ITS) applications.
The integrated antennas support dedicated short-range (DSRC) and cellar vehicle-to-everything (C-V2X) communication. The antennas embed a premium GNSS antenna with high gain for consistent and reliable precise positioning service. They also allow for multiple input and output of data to achieve swift internet download speed in 5G networks.
HX-AULT002. (Photo: Harxon)
The Harxon HX-AUST002 is designed to connect unmanned passenger vehicles to networks, clouds, other vehicles, and ITS roadside infrastructure.
The Harxon HX-AULT002 is designed for unmanned commercial vehicles, including short-distance delivery vehicles, mainline logistic heavy-duty trucks, and intercity shuttle buses.
The versatile antennas are suitable for integration in on-board units (OBU), intelligent roadside units, chipsets and Tier 1 automobiles.
Chronos Technology Ltd., a UK-based resilient synchronization and timing company, has transitioned to employee ownership through the Chronos Technology Employee Ownership Trust (EOT) Ltd.
Charles Curry who established Chronos Technology in September 1986 and was co-owner alongside his wife, Angela Curry, had been deliberating succession planning and their exit from the business. Various options such as a third-party sale or a management buyout were considered but quickly dismissed.
“I am aware of business owners who had exited through third-party sales and had not enjoyed the experience of working under new management for the agreed handover period,” Curry said. “New owners generally change the dynamic of the business, often introducing new staff and work practice without giving opportunity to existing staff and process, and we did not want this for Chronos.”
“Over the years we have established a work ethic that puts the customer first,” Curry continued. “The EOT protects the loyal Chronos family and ensures the customer-facing continuity of the business and, most importantly, safeguards jobs. Going forward, in the hands of the employees, the company will benefit from increased customer engagement and the commitment to a team approach to steer the business on the next phase of its journey.”
Chronos Technology specializes in resilient synchronization and timing systems, smart technologies, GNSS and cybersecurity solutions for critical national infrastructure, with industry experience gathered over 35 years in specialist technologies such as GNSS, PTP, NTP and SyncE.
The company provides GPS coverage solutions in hangars, manufacturing areas and underground, as well as smart technology solutions and GNSS jamming detection and location solutions for law enforcement. Customers include telecom, finance, energy, data centers, broadcast, aerospace, defence and security, enterprise/IT, emergency services, transport and manufacturing.
The TopAXYZ inertial navigation unit by Thales. (Image: Thales)
Thales and CS Group partner to offer navies a cybersecure, jam-resistant navigation system inspired by civil aviation
Thales and CS Group have partnered to offer a complete navigation system for navy surface ships. At the heart of the system is the Thales TopAxyz inertial navigation unit, which is integrated with CS Group’s real-time computer to combine high-level performance and resilience in an electronic warfare environment. The system provides high-precision pointing, gyrocompass, location and navigation functionality for all types of naval platforms, from surface combatants and submarines to autonomous vehicles.
The TopAxyz inertial navigation unit has delivered outstanding performance in the rigorous conditions of civil aviation, clocking more than 20 million hours of operation. The naval version of the unit was integrated on a French Navy vessel in less than a day by CS Group, and has already proven its operational value for maritime navigation in a sea trial.
“After proving their value on board aircraft, space launchers and French Army land vehicles, Thales inertial navigation systems are now available for naval platforms,” said Tristan Grivel, vice president business development and sales for Thales’s flight avionics business.
“CS Group has supplied real-time navigation computers, military-grade GPS receivers and other solutions to the French Navy and Naval Group for many years, explained Gilles Rigal, director of CS GROUP’s naval systems business line. “This partnership with Thales allows us to offer an innovative, robust and resilient maritime inertial navigation system for surface ships,” Rigal said.
Countering electronic warfare
In today’s constantly changing naval environment, crews need to contend with the threat of cyberattacks, electronic warfare activity and the high risk of jamming and spoofing of GPS-based radionavigation solutions. Accurate navigation data, real-time data distribution and resistance to external threats are crucial for every mission conducted by a naval vessel today.
Thales and CS Group have worked together for more than 20 years to address these issues. Drawing on their combined expertise across all the key navigation system technologies, the two companies are now proposing a new approach to maritime navigation based on more trustworthy and reliable navigation data.
The TopAxyz inertial unit uses accurate, reliable navigation information that is independent of sea state and vessel location, combined with a function that detects attempts to spoof GPS signals. The navigation data calculated by TopAxyz is distributed in real time by the NDDS (Navigation Data Distribution System) developed by CS Group’s onboard computer.
The computer uses the latest technological advances in cybersecurity, guaranteeing the best level of resilience to attacks. Its architecture offers three key advantages: safer navigation, reduced costs and integration risks, ease of use and simplified maintenance of the system. No calibration is required during the service life of the system, reducing the total cost of ownership.
The new maritime navigation system are now available, and are being manufactured at the companies’ production and integration facilities in Châtellerault and Aix-en-Provence in France.
An Oculii sensor placed at the front corner of a vehicle. (Photo: Oculii)
Oculii’s patented adaptive AI software increases resolution of existing RF radar silicon up to 100X
Ambarella Inc. has entered into a definitive agreement to acquire Ohio-based Oculii Corp. Oculii’s adaptive artificial intelligence (AI) software algorithms are designed to enable radar perception using current production radar chips to achieve significantly higher (up to 100x) resolution, longer range and greater accuracy.
The fusion of Ambarella’s camera technology and Oculii’s radar software stack provides an all-weather, low-cost and scalable perception solution, enabling higher levels of autonomy for Tier 1 automakers and OEMs globally.
Oculii’s technology eliminates the need for specialized high-resolution radar chips, which have significantly higher power consumption and cost than conventional radar solutions. Oculii’s software can be deployed on Ambarella’s existing CVflow systems-on-chip (SoCs), operating in conjunction with radar RF solutions to increase safety and reliability.
The acquisition expands Ambarella’s addressable market into radar perception and fusion with its existing SoCs for automotive and other internet of things endpoint applications, including mobile robotics and security.
Oculii’s superior resolution and sensitivity can unlock the potential of everything from advanced driver-assistance systems (ADAS) and autonomous vehicles to robotics and security, by providing radar with a dynamic waveform that uses AI to learn from and adapt to the environment. The result is an extended operating range of up to 400 meters with a wide field of view.
To date, Oculii is engaged with 10 of the top 15 Tier 1s on software licensing, and has commercial development contracts with other OEM and AV companies. Oculii is generating pre-production revenue today, with production programs expected to commence in CY2023.
The boards of directors at both companies have approved the transaction, which is subject to customary closing conditions and expected to close during Ambarella’s Q4 FY2022 (ending January 31, 2022). Wilson Sonsini Goodrich & Rosati served as legal advisor to Ambarella, and Goodwin Procter served as legal advisor to Oculii. Greenhill & Co. served as financial advisor to Ambarella.
