TAG: jamming

Assured PNT for Our Future: PTA

September 1, 2014By
GDGPS-Parkinson-O

Actions Necessary to Reduce Vulnerability and Ensure Availability By Brad Parkinson (From the 25th Anniversary GNSS History Special Supplement) Introduction About 40 years ago, we had a vision for positioning, navigation, and timing (PNT). That vision was more than successful, and became known as GPS. In some respects we have been almost too successful: PNT is frequently taken for granted.... read more

Year of the Generals

July 9, 2014By

Several pleasant surprises popped up at this year’s Institute of Navigation’s Joint Navigation Conference (ION JNC) in Orlando, Florida, and the best by far centered on the presenters and the attendees. In a change from recent years due to budget restrictions, better known as sequescastration, this year two senior Air Force generals attended and actively participated in several events. General... read more

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Out in Front: Epic Fail

July 1, 2014By

Sometimes the patient has to get sick in order to get better. The eruption of a malady leads to identification of an underlying condition; appropriate treatment can then be devised to cure the body of its ills. Sound like House, M.D.? As a variant on this plot line, the patient can know full well what is wrong deep down inside,... read more

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Intel’s Mini-PC: A Cheap Server for an RTK Base

June 23, 2014By

I’ve written this many, many times in the past eight years that I’ve written for GPS World magazine, but I have to write it again — this is an exciting time for GNSS! For me, high-precision GNSS is particularly exciting. I’ve been traveling like crazy, and involved in a number of really fun projects that incorporate high-precision GNSS. Of course,... read more

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Locata Warns: Lessons to Be Learned from GLONASS Spasm

April 15, 2014By
Locata-O

Calling it an “unprecedented and deeply worrying total disruption . . . [that] shook the industry,” Locata Corporation reiterated its call for redundant terrestrial systems to back up GNSS in the wake of the April 1 11-hour GLONASS system outage. Nunzio Gambale, Locata CEO, said “We have been telling the industry for years that you cannot have a critically important... read more

Applied EM Offers Anti-Jam Antenna

March 26, 2014By

Applied EM’s anti-jam GPS antenna, AJGPS045, has achieved a four-channel Controlled Radiation Pattern Antenna (CRPA) in a very small size, weight and power (SWAP) particularly suitable for airborne platforms. Its footprint is the same as a standard GPS Fixed Radiation Pattern Antenna (FRPA), the FRPA-3. This is a key enabler to bringing greatly improved anti-jam performance to smaller platforms and... read more

Missing Plane, New Mapping Abilities, and GPS Jamming

March 25, 2014By

As the tragedy of Malaysia Airlines Flight 370 riveted our attention, many sprang into action. More than two million volunteers scoured online satellite images for signs of the plane via Tomnod, a crowdsourcing project of DigitalGlobe. Volunteers like Robert Wilkinson are asked to view satellite photos and tag any signs of wreckage, rafts, oil spills and other objects that may... read more