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November 5, 2019

Inertial Breakthroughs Guide the Autonomous Vehicle

The complex and mission-critical needs of the autonomous vehicle market demand innovation at higher levels in several different sensors and in sensor integration. A new photonic chip technology offers promise in providing high-volume, low-cost manufacture of high-end, tactical-grade performance fiber-optic gyros (FOGs)for inertial navigation in GNSS-obstructed environments.

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By Inside GNSS
November 1, 2019

FCC may act imminently on Ligado

The grapevine was abuzz on Halloween with chatter that the Federal Communications Commission (FCC) might soon act on a long-pending request from Ligado Networks to use spectrum near the GPS frequencies to support terrestrial communications.

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By Dee Ann Divis
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October 22, 2019

Tech Search Emphasizes Smaller, Better IMUs, Timing Technology

IGM 20191021 Assured PNT MoGIS
C5ISR Center computer scientist Zach Kjellberg conducts testing on a position, navigation and testing system at Aberdeen Proving Ground, Md., on June 13, 2019.  Photo by Dan Lafontaine, C5ISR Center Public Affairs

The U.S. Army is reaching out to industry for the advanced inertial measurement unit (IMU) and timing technology it needs to support warfighters when GPS is unavailable or compromised.

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By Dee Ann Divis
October 20, 2019

CYGNSS satellites use reflected GPS signals to predict hurricane paths

The Cyclone Global Navigation Satellite System (CYGNSS) constellation operated by the U.S. National Aeronautics and Space Administration (NASA) consists of eight miniature satellites that use GPS signals bounced off the sea surface to measure wind speeds. One after the other at 12-minute intervals, the satellites pass over tropical storms, gathering data that can be used to predict the storms’ path and their intensity.

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By Inside GNSS
October 17, 2019

EGNOS V3 capability aloft; takes effect in 2024

The newest EGNOS satellite is aloft. Eutelsat’s 5 West B satellite was successfully launched from Kazakhstan on October 9. Among other payloads, the 5 West B carries a GEO-3 payload of the European Geostationary Navigation Overlay System (EGNOS), Europe’s regional satellite-based augmentation system (SBAS). The satellite will support EGNOS V3, the next generation of the EGNOS program.

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By Inside GNSS
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