PNT Archives - Page 16 of 22 - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design

August 12, 2020

Get with the Inertial Program: An Advanced Engineering Archive

An extensive and significant body of technical information on inertial navigation, including detailed instruction, technical papers and use cases, has appeared online. This valuable resource is openly available to engineers, designers, integrators, and specifiers working on UAVs, aerial and ground survey and mapping, construction, surveillance and reconnaissance, satellite communications, military and much more.

By Inside GNSS

August 4, 2020

Ready, Steady, Go — Here at Last Comes GLONASS-K

The third next-generation GLONASS-K navigation satellite, postponed several times, will now take place in late August or early September, according to reported statements by Russian space industry sources. This marks a long-delayed step along a road towards interoperability with other GNSS. The first GLONASS-K satellite was launched in 2011 and a second one in 2014.

By Inside GNSS

July 28, 2020

Ramjack Takes Syntony PNT Solution Way Down in the Mine

Ramjack Technology Solutions and Syntony GNSS have partnered to deliver underground GNSS positioning, navigation and timing (PNT) solutions, using Syntony’s SubWave technology.

By Inside GNSS

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July 6, 2020

Silicon MEMS Accelerometer: the Latest Disruptor

MEMS has moved into the high-end market, and the latest disruptor to take into account is silicon MEMS. That’s micro-electromechanical systems based in silicon chips, for short. Accelerometers with up to 100g range and 70µg bias in a very small form factor — 6 cubic centimeters — are exploding the horizons for inertial applications.

By Inside GNSS

June 30, 2020

Resilient Timing in Smaller Package for Infrastructure and Mission-Critical Apps

Septentrio has launched mosaic-T, a highly secure and accurate multi-frequency multi-constellation GNSS timing module for critical infrastructure and mission-critical timing applications.

By Inside GNSS

June 19, 2020

U.S. Military Procures New GPS Simulator Systems

The U.S. Department of Defense awarded a $1.7 million contract to Orolia Defense and Security for multiple BroadSim advanced GPS simulator systems for testing facilities and field test assets.

By Inside GNSS

June 15, 2020

Magnetic Sensors in Flight Tests as Alternative PNT to GNSS

A new magnetic anomaly navigation technique (MAGNAV), researched by the Air Force Institute of Technology (AFIT), will get its wings tested aboard F-16 fightercraft this September. In an effort seeking alternatives to GPS and GNSS, MAGNAV sensors and software will be flown on Air Force Test Pilots School (AFTPS) F-16s over a test range adjacent to Edwards Air Force Base in Nevada.

By Inside GNSS

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May 21, 2020

The New Flex Power Mode: From GPS IIR-M and IIF Satellites with Extended Coverage Area

GPS satellites usually transmit their signals with constant power. However, a so-called “Flex Power” is foreseen to increase the strength of individual signals to better fulfill operational constraints. Flex power operations can be detected in carrier-to-noise density ratio (C/N0) observations provided by GNSS receivers of the global tracking network of the International GNSS Service (IGS).

By Peter Steigenberger, et al.

May 20, 2020

Positioning, Navigation, and Timing Trust Inference Engine

Critical infrastructure has a compelling need to infer the assurance of PVT estimates—as do users in general. However, traditional PNT platforms do not offer a principled way to infer assurance from multiple anti-spoofing (A-S) techniques, situational awareness (SA) information, and other auxiliary sources such as network data. Here we introduce, a PNT Trust Inference Engine (PNTTING) that can assess PNT trust according to probabilistic models with rigorous semantics.

April 7, 2020

State of Play: Resilient Timekeeping for Critical Infrastructure

Readers of this website are familiar—perhaps overly familiar!—with the threats to resilient positioning and navigation that are posed by interference, intentional and unintentional. Timekeeping applications for critical infrastructure using GNSS must also protect themselves against jamming and spoofing.

By John Fischer

GPS Backup Analysis Stays on Track

Though the pandemic impacts federal workers and contractors across the country, the early-March testing of GPS backup technologies finished on time and the analysis is expected to be completed on schedule.

By Dee Ann Divis

April 6, 2020

Going Direct: Improved Accuracy from Reflected Signals and Path Predictions

An assisted GPS direct positioning estimation (DPE) technique for urban environment copes with a full spectrum of direct-line-of-sight and non-line-of-sight or multipath conditions. A new approach using signal visibility and specular reflection predictions within the DPE shows the potential to reduce positioning error from approximately 30 to 10 meters.

By Kirsten Strandjord, et al.

March 30, 2020

EMCORE Recognized by Raytheon with Integrated Defense Systems 5-Star Supplier Excellence Award

EMCORE Corporation, a provider of advanced mixed-signal products serving the aerospace, defense and broadband communications markets, received the 2019 Raytheon Integrated Defense Systems (IDS) 5-Star Supplier Excellence Award for performance and partnership.

By Inside GNSS

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Sony Releases GNSS Receiver LSIs for IoT and Wearable Devices...

Get with the Inertial Program: An Advanced Engineering Archive

Ready, Steady, Go — Here at Last Comes GLONASS-K

Ramjack Takes Syntony PNT Solution Way Down in the Mine

Silicon MEMS Accelerometer: the Latest Disruptor

Resilient Timing in Smaller Package for Infrastructure and Mission-Critical Apps

U.S. Military Procures New GPS Simulator Systems

Magnetic Sensors in Flight Tests as Alternative PNT to GNSS

The New Flex Power Mode: From GPS IIR-M and IIF Satellites with Extended Coverage Area

Positioning, Navigation, and Timing Trust Inference Engine

State of Play: Resilient Timekeeping for Critical Infrastructure

GPS Backup Analysis Stays on Track

Going Direct: Improved Accuracy from Reflected Signals and Path Predictions

EMCORE Recognized by Raytheon with Integrated Defense Systems 5-Star Supplier Excellence Award