Global Navigation Satellite Systems Engineering, Policy, and Design
A factor graph represents a global function of many variables as a product of local functions with smaller subsets of variables. This is not a method but a framework for modelling any system using its locality structure, that is, each variable is only dependent on a few other local variables and is independent of the others.
Teledyne FLIR’s Neutrino® Series simplifies the process, shortening integration timelines and lowering costs.
By Inside GNSS
Having developed a breakthrough technology, the hard work is far from over. Now you have to show potential customers that previously unheard-of levels of performance can be achieved with lower-cost materials.
By Inside GNSS Low Earth Orbit (LEO) satellites are being launched regularly into space to create satellite constellations for a variety of purposes: communication, surveillance, providing Internet service and more. Global satellite navigation service is provided by satellites in higher orbits, mi-Earth orbit (MEO) roughly 25,000–27,00 kilometers above the Earth. Could satellites in LEO be used to provide global satellite navigation?
Telespazio UK, a subsidiary of Telespazio of France and Italy, received a development contract from the European Space Agency (ESA) for a Next Generation Network Assisted Position, Navigation and Timing (PNT) Assurance (NG-NAPA) project.
By Inside GNSS High standards for technology in the lab and in the factory are all very fine, but what matters most is how it works in industrial application. We take a close-up look at inertial measurement and inertial navigation in such real-world cases as
• oil and gas pipeline inspection,
• stabilization of optical camera platforms and
• autonomous cargo transport.
Viasat Inc., a global communications company, will acquire Inmarsat, a provider of global mobile satellite communications services, in a transaction valued at $7.3 billion. Two of the four European Geostationary Navigation Overlay Service (EGNOS) broadcasting payloads, part of Europe’s GNSS, ride aboard Inmarsat satellites,
By Inside GNSS
Xona Space Systems and StarNav will jointly develop user equipment capable of receiving Xona’s Pulsar service to produce resilient position, navigation, and timing (PNT) solutions for commercial and government end users.
By Inside GNSS
SoftBank Corp., ALES Corp. and u-blox AG have signed a memorandum of understanding to cooperate in GNSS augmentation services for global markets.
By Inside GNSS
The U.S. Space Force ordered three GPS 3F satellites from Lockheed Martin for $737 million, exercising an option to purchase the satellites under a previously awarded contract.
By Inside GNSS
Spirent Communications plc, a provider of GNSS)testing and assurance solutions, has launched a commercially available simulation test solution for the Galileo High Accuracy Service (HAS), via a beta interface implementation based on HAS ICD version 1.2.
By Inside GNSS
The smartphone and its various everyday apps link us to GPS, Wi-Fi networks, Bluetooth LTE, audio and cell tower proximity that help us find out where we are and tell us how to get to where we need to go, down to precise latitudes, longitudes and altitudes, accurate to within a few yards. So who should have access to this information?
By Dawn M.K. Zoldi (Colonel, USAF, Ret.)
A research team at the Fraunhofer Institute for Integrated Circuits (IIS) in Germany authenticated Galileo’s live Open Service Navigation Message Authentication (OSNMA) signal on November 16. The team used a GNSS receiver jointly developed with TeleOrbit GmbH, the compact GNSS Receiver with Open Software Interface (GOOSE).
By Inside GNSS
ADVA introduced its OSA 5400 SyncModule embedded timing solution, enabling technology suppliers to integrate precise synchronization into their hardware. The M.2 form factor module offers equipment vendors a way to simply and cost-effectively add crucial timing capabilities with key functionality into their switches, routers, open compute servers and other IT devices.
By Inside GNSS
Tallysman Wireless of Ottawa, Canada, announced its new TW162A automotive-grade smart power GNSS signal splitter. It supports the full GNSS spectrum
By Inside GNSS ADVA introduced its OSA 5400 SyncModule embedded timing solution, enabling technology suppliers to integrate precise synchronization into their hardware. The M.2 form factor module offers equipment vendors a way to simply and cost-effectively add crucial timing capabilities with key functionality into their switches, routers, open compute servers and other IT devices.
By Inside GNSS
Honeywell today announced that it has launched two new resilient navigation systems: the Honeywell Compact Inertial Navigation System and Honeywell Radar Velocity System.
By Inside GNSS
Spirent Federal announces 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.
By Inside GNSS
STMicroelectronics has introduced the Teseo-VIC3DA, the latest member of the Teseo module family. Teseo-VIC3DA combines ST’s high-performing Automotive Teseo III GNSS1 IC with the automotive 6-axis MEMS inertial measurement unit (IMU) and dead reckoning software to create a convenient, automotive-qualified navigation module.
By Inside GNSS
Advanced Navigation has today released the second generation of their highly successful satellite compass. GNSS Compass is a plug and play solution that provides accurate position, heading and time in a self contained unit.
By Inside GNSS
Broadcom has its new third-generation low-power L1/L5 GNSS receiver chip, the BCM4778, available for sampling to early-access partners and customers. Optimized for mobile and wearable applications, the chip is 35% smaller and consumes 5 times less power than the previous generation.
By Inside GNSS
The biggest thing in anti-jam just got smaller: introducing GAJT-410MS, the newest addition to the GPS Anti-Jam Technology (GAJT) portfolio from Hexagon | VERIPOS.
By Inside GNSS
Saab, the Swedish defense and security company, and Maxar recently demonstrated a solution to GPS-denied environments by integrating Maxar’s 3D DATA and Precision 3D Registration (P3DR) technology into the Gripen E, the combat fighter jet
By Inside GNSS
NextNav and Satelles, Inc. have partnered on an alternative positioning, navigation, and timing (PNT) testbed in the San Francisco Bay Area. Designed and managed by NextNav with a timing source from Satelles, the testbed creates scenarios and conditions to rigorously test the precision and resilience of alternative PNT solutions
By Inside GNSS
Trimble launched its DA2 GNSS receiver for the Trimble Catalyst positioning service. The DA2 second-generation receiver and antenna for the Catalyst service now includes the Trimble ProPoint GNSS engine
By Inside GNSS
Hexagon | NovAtel updated their GPS Anti-Jam Technology (GAJT) portfolio. A provider of assured positioning, navigation and timing (APNT) products, NovAtel introduced the new GAJT-710 line with several enhancements over the previous generation.
By Inside GNSS
u-blox announced a new GNSS evaluation software, u-center 2, running on Microsoft Windows and offering anyone working with tenth-generation u-blox GNSS technology a highly intuitive interface to configure GNSS products, evaluate their performance, improve the quality of their software,
By Inside GNSS
Profound Positioning Inc., a provider of navigation and positioning software, announced its Instant Vehicle Tracking (IVT) solution, using GNSS and multi-sensor fusion to achieve decimeter-level accuracy in a cost-effective solution for safer, more efficient driving.
By Inside GNSS
The U.S. Army has put its replacement for the handheld Defense Advanced GPS Receiver (DAGR) under field testing in reconnaissance and fire missions in a variety of threat scenarios, to understand its performance in a realistic operational environment. The Dismounted Assured Positioning, Navigation, and Timing System (DAPS) could enable warfighters to better shoot, move and communicate in a GPS degraded environment.
By Inside GNSS
SBG Systems’ popular INS/GNSS PPK software called Qinertia is now available to users of Septentrio AsteRx-i3 D Pro+, AsteRx-i3 S Pro+ and AsteRx SBi3 Pro+ receivers.
By Inside GNSS
Javier Benedicto, for nearly 14 years the Head of the Galileo Programme Department within the Directorate of Navigation at the European Space Agency (ESA), has been appointed Director of Navigation at the agency.
By Inside GNSS
The Institute of Navigation’s (ION) Satellite Division presented Dr. Mark Psiaki with its Johannes Kepler Award during the Institute of Navigation (ION) GNSS+ 2021 Conference. In addition to many other achievements, Psiaki co-authored the Inside GNSS cover story, “TRANSIT on Steroids: Doppler-Based GNSS Meets Large LEO Constellations”
By Inside GNSS
The European satellite service provider (ESSP) placed Charlotte Neyret, former European Development Director for Thales Alenia Space, at its helm as chief executive officer.ESSP manages EGNOS, the European GNSS satellite-based augmentation system.
By Inside GNSS
Focal Point Positioning, a deep tech start-up whose technologies address the core problem of GNSS inaccuracies due to multipath and spoofing, hasannounced the hire of GPS industry veteran Jim LaMance as Chief Experience Officer
By Inside GNSS
Focal Point Positioning, a UK-based deep tech start-up whose patented technology improves the performance of GPS chips in smartphones, wearables and vehicles, announced the hiring of GPS industry veteran Scott Pomerantz as its new CEO.
By Inside GNSS
AIRMAR®Technology Corporation, a world leader in ultrasonic transducers and Chirp technology, is pleased to welcome Diana Sufariu to the company as Director of Engineering.
By Inside GNSS
The Hon. Malcolm Turnbull has been appointed to the Advanced Navigation board of directors. Mr Turnbull will serve as a Director on the Board and will help accelerate the company’s expansion across their global markets.
By Inside GNSS Xona Space Systems and StarNav will jointly develop user equipment capable of receiving Xona’s Pulsar service to produce resilient position, navigation, and timing (PNT) solutions for commercial and government end users.
By Inside GNSS
Analog Devices, Inc. (ADI) recently received four Electronics Industry 2021 Awards presented by Datateam Business Media. The Electronics Industry Awards honor the best professionals, products, projects, and companies across the electronics sector.
By Inside GNSS
Hexagon | NovAtel announced that its PwrPak7-E1 GNSS receiver is now supported on the NVIDIA DRIVE Hyperion autonomous vehicle (AV) development platform. NVIDIA designs system on a chip units (SoCs) for the automotive and mobile computing markets
By Inside GNSS
Thales and CS GROUP have combined to offer a high-performance, resilient and cybersecure navigation system comprising Thales’s TopAxyz inertial navigation unit, which has clocked over 20 million hours of operation in civil aviation, and CS GROUP’s real-time computer.
By Inside GNSS
NextNav and Qualcomm Technologies, Inc. now collaborate to enable NextNav’s Pinnacle 911 z-axis software and network-based services for use with the Qualcomm Location Suite. This facilitates integration of vertical location into existing carrier infrastructure for emergency 911 purposes by device and original equipment manufacturer (OEM) vendors.
By Inside GNSS
Trimble and Microsoft announced a strategic partnership to advance technology adoption and accelerate the digital transformation of the construction industry.
By Inside GNSS
Merger to Deliver High-End Performance and Ultra-Accurate Time and Frequency Products for Commercial, Critical Infrastructure, and Military Markets Worldwide
By Inside GNSS Broadcom has its new third-generation low-power L1/L5 GNSS receiver chip, the BCM4778, available for sampling to early-access partners and customers. Optimized for mobile and wearable applications, the chip is 35% smaller and consumes 5 times less power than the previous generation.
By Inside GNSS
A maker of electric scooters has developed a GNSS- and inertial-based technology to keep its own products off of city sidewalks. Bird, a provider of environmentally friendly electric transportation, announced a smart sidewalk protection technology developed in partnership with u-blox.
By Inside GNSS NextNav and Satelles, Inc. have partnered on an alternative positioning, navigation, and timing (PNT) testbed in the San Francisco Bay Area. Designed and managed by NextNav with a timing source from Satelles, the testbed creates scenarios and conditions to rigorously test the precision and resilience of alternative PNT solutions
By Inside GNSS Trimble launched its DA2 GNSS receiver for the Trimble Catalyst positioning service. The DA2 second-generation receiver and antenna for the Catalyst service now includes the Trimble ProPoint GNSS engine
By Inside GNSS
Xona Space Systems announced that completion of a new funding round will support the company’s first orbital mission, scheduled for mid-2022, to demonstrate the capabilities of its Pulsar precision low-Earth orbit (LEO) PNT service, an independent high-performance satellite navigation and timing system designed to meet the needs of intelligent systems.
By Inside GNSS
Hexagon | NovAtel announced that Fendt machines in North America, Europe and the Middle East equipped with Fendt Guide guidance systems powered by Fuse Smart Farming now come with NovAtel’s SMART7 GNSS receiver as the default configuration choice.
By Inside GNSS
ADVA announced that Portland General Electric (PGE) is deploying Oscilloquartz PTP grandmaster clock technology, incorporating multi-band GNSS receivers, as it upgrades to packet-based synchronization and protects its network against GNSS vulnerabilities and cyberattacks, while conforming to PNT Executive Order 13905.
By Inside GNSS 
This article reviews some of the recent results analyzing the feasibility of carrier-phase based positioning with smartphone data and highlights limitations largely arising due to the poor antenna quality. It shows how they might be overcome by antenna calibration or coupling to the phone’s inertial sensors. The goal is to perform a successful RTK positioning with the smartphone-quality data.
Discussions about spectrum allocation, familiar to GNSS designers and manufacturers on Earth, are now taking place regarding the lunar environment. ITU Radio Regulations constitute an international treaty governing all radio frequency activities. This article shows that GNSS operators in this region must transmit signals in the GNSS S-band rather than in GNSS L-bands.
A new method for multipath rejection employs a multicorrelator-based GNSS receiver with an extended Kalman Filter (EKF) as an iterative solver, replacing the conventional delay locked loop (DLL) code tracking. The technique significantly reduces the positioning error and has low complexity. It can therefore be implemented in a real-time processing environment.
