Global Navigation Satellite Systems Engineering, Policy, and Design
by Logan Scott
There has been much discussion of the need for resilient PNT over the past few years, as dependencies have grown and an evolving threat matrix has become more active. As a nation, we need a measured and cost-effective response commensurate with the level of threats and the possible consequences.
By Inside GNSS
The European Space Agency (ESA) selected Spain-based multinational aerospace company GMV as a supplier of an RF constellation simulator for Galileo second-generation satellites, which have just entered production.
By Inside GNSS
The United States Space Force’s Space and Missile Systems Center (SMC) awarded a $228 million contract to Raytheon Intelligence and Space for the GPS Next-Generation Operational Control System (OCX) Follow-On (OCX 3F).
By Inside GNSS
The European GNSS Agency (GSA) awarded a 1 million-euro research contract to RUAG Space for a study to increase the accuracy of space data provided by climate and environmental satellites.
By Inside GNSS In tactical-grade navigation and targeting systems, a new inertial technology has proved itself under the most demanding conditions, showing the precision required for assured positioning, navigation, and timing (A-PNT) solutions.
By Inside GNSS April 19th saw what some have christened “a second Wright Brothers moment”—namely, the successful first powered controlled flight by an aircraft on another world.
By Inside GNSS
Ford of Europe announced a new ways of making driving in the dark easier and more comfortable: have your headlights swivel to follow curves in the road ahead, guided by GPS and a high-definition digital map in the vehicle.
By Inside GNSS
KVH Industries introduced the P-1750 inertial measurement unit (IMU) and the P-1725 IMU to complement its previously released P-1775 IMU and create a full line of IMUs that feature high-performance accelerometers and KVH’s patented photonic integrated chip (PIC) technology.
By Inside GNSS
The European Union has not done enough to harness the full potential of its space programs, according to a special report published April 21 by the European Court of Auditors (ECA). While the satellite-based programs Galileo and Copernicus provide valuable services and data, more efforts are needed to capitalize on the significant investment made — around €18 billion so far — and to optimize the benefits they bring to citizens and the economy.
By Inside GNSS
EMCORE Corporation, a provider of advanced mixed-signal products for aerospace, defense and broadband communications markets, introduced its new SDI170 quartz micro-electromechanical Systems (MEMS) tactical grade inertial measurement unit (IMU).
By Inside GNSS
The launch of the first next-generation GLONASS K2 satellite is set for late 2021, according to a statement by Nikolai Testoyedov, CEO of the Reshetnev Information Satellite Systems Company, the satellites’ producer. The satellite will begin the next modernization phase of Russia’s GNSS.
By Inside GNSS
u‑blox and ArduSimple announced a partnership developing the SimpleRTK2B single-board computer (SBC). The device, built around up to three u‑blox ZED-F9P high-precision GNSS receivers, simplifies the development of centimeter-level positioning solutions supporting real-time kinematics (RTK)
By Inside GNSS
GPSPATRON has developed a system to monitor GNSS signals around specific areas of operation and issue user alerts to the presence of spoofing.
By Inside GNSS
A study by the U.S. National Institute of Standards and Technology (NIST), the U.S. Government agency responsible for maintaining national time scale, shows that Satelles’ Satellite Time and Location (STL) provides a signal that is independent of GNSS with exceptional timing stability and reach that extends indoors, beyond the range of GNSS signals.
By Inside GNSS
Silicon Sensing has introduced a new ultra-precise, 9 degrees-of-freedom inertial measurement unit (IMU), the DMU41, delivering the performance of its predecessor the DMU30 in a much smaller form factor.
By Inside GNSS 
As stated in these pages last September, every GNSS user in every segment can benefit from the new modernized signals in the L5 band. Foremost among these are likely to be smartphone users.
By Alan Cameron
Inaccuracy in cities has been the persistent and lingering problem for GNSS, engendering many attempts at a solution and revealing deeply embedded difficulties. This article provides an overview of the Google solution, the rollout in Android phones, and before/after results.
The Department of Transportation Report on complementary and backup PNT technologies has good information but paints far from a complete picture. Several candidate technologies were not demonstrated, and market factors that will form an important consideration are not discussed.
