资讯

GPS World9 天
Safran Electronics & Defense debuts resilient PNT system
Safran Electronics & Defense has introduced BlackNaute, a new autonomous positioning, navigation and timing (PNT) system.
GPS World8 年
Anti-jam technology: Demystifying the CRPA - GPS World
Operational Anti-Jam Units With some images courtesy of my friends at Raytheon, let’s look at a few examples of deployed military CRPA hardware over the years. The GAS-1 system entered service in the ...
GPS World14 天
GNSS jamming widespread in Strait of Hormuz, ships collide
GNSS jamming is causing confusion for ships traveling through the Strait of Hormuz, reports gCaptain. The regional threat levels are labeled “significant” because of air strikes between Iran and ...
GPS World10 年
What exactly is GPS NMEA data? - GPS World
You may have heard about “NMEA data” with respect to GPS. NMEA is an acronym for the National Marine Electronics Association. NMEA existed well before GPS was invented. According to the NMEA website, ...
GPS World2 年
The role of atomic clocks in data centers - GPS World
Timing from atomic clocks is now an integral part of data-center operations. The atomic clock time transmitted via Global Position System (GPS) and other Global Navigation Satellite System (GNSS) ...
GPS World5 年
The differences between Geoid18 values and NAD 83, NAVD 88 values
The box titled “Summary of Overall fit of Geoid18” provides a summary of the fit of residuals of Geoid18 from the NGS GEOID18 technical details document. Looking at the CONUS overall values, the ...
GPS World3 年
Russia expected to ditch GLONASS for Loran in Ukraine invasion
Schue was the first commanding officer of the U.S. Coast Guard’s Loran Support Unit and the first program manager for the congressionally mandated Loran Modernization and Recapitalization project that ...
GPS World1 年
China’s BeiDou, GPS and great power competition
About the Author: Dana Goward Dana Goward is president of the Resilient Navigation and Timing Foundation. He is the proprietor at Maritime Governance LLC. In August 2013, he retired from the federal ...
GPS World5月
From grading to mapping: Surveyors tie dirt to data - GPS World
All construction work begins with surveying to map the site and generally ends with surveying to document what was done on it — called “as built.” Therefore, surveyors are the first to arrive at a ...
GPS World1 年
UK government PNT plan focuses on policy, timing center, eLoran, defense time and SBAS ...
About the Author: Dana Goward Dana Goward is president of the Resilient Navigation and Timing Foundation. He is the proprietor at Maritime Governance LLC. In August 2013, he retired from the federal ...
GPS World1 年
The early days of GPS: How it was adopted by the US military and surveyors - GPS World
About the Author: Matteo Luccio Matteo Luccio, GPS World ’s former Editor-in-Chief, contributed his 20+ years of experience as a writer and editor for GNSS and geospatial technology magazines. He ...
GPS World1 年
China's BeiDou challenges US GPS dominance - GPS World
Fifty years since it was designed and approved by the U.S. Department of Defense (DOD), the GPS is at risk of losing its status as the world’s gold-standard location service, reported The Wall Street ...