TAG: jamming

Improve your detection and mitigation of signal interference in free webinar

January 18, 2017By
Harmful

New speakers have been announced for GPS World‘s Feb. 2 webinar, “Signal Interference: Detection and Mitigation.” Rick Hamilton, U.S. Coast Guard Navigation Center and Civil GPS Service Interface Committee; Connor Brashar, The MITRE Corporation; and Patrick Casiano, NovAtel, will present a range of sub-topics spanning ways to maximize PNT performance and efficiency. As the number of GNSS signals being tracked increases, so does... read more

Iridium constellation provides low-Earth orbit satnav service

January 12, 2017By

A strategic alliance announced on Dec. 15 between Orolia and Satelles includes product development and go-to-market activities of positioning, navigation and timing (PNT) solutions provided by the Iridium satellite constellation, independent of GPS/GNSS signals. The companies intend to provide PNT solutions to military, defense, government and commercial customers worldwide. Orolia, the parent of GNSS-active companies Spectracom and Spectratime, among others,... read more

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Orolia fortifies resilient PNT with Satelles satellite time and location signal

December 15, 2016By
Iridium satellite, courtesy of Iridium.

A strategic alliance announced on Dec. 15 between Orolia and Satelles includes product development and go-to-market activities of positioning, navigation and timing (PNT) solutions provided by the Iridium satellite constellation, independent of GPS/GNSS signals. The companies intend to provide PNT solutions to military, defense, government and commercial customers worldwide. Orolia, the parent of GNSS-active companies Spectracom and Spectratime, among others,... read more

Poll: Experiences with jamming, spoofing and RF interference

November 14, 2016By
jimi-purple-haze

Not with Purple Haze, but with signal interference — although, come to think of it, the two may be not unalike, phenomenologically. The October reader’s poll asked “Have you directly experienced any of the following? Check all that apply. GPS/GNSS jamming. GPS/GNSS spoofing. Unintentional RF interference. RF interference from unknown source; unknown whether intentional or not. None of the above.... read more

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Expert Opinions: Testing and simulating against GNSS jamming, spoofing

November 8, 2016By
satellites-500x150

Q: What special considerations should be taken into account for testing and simulating against GNSS jamming and spoofing?   A: Current integrations of GPS include a controlled reception pattern antenna (CRPA). Testing with a standard interference or jamming source will not provide accurate results. Wavefront generator simulators are capable of outputting signals that correctly stimulate the GPS receiver’s antenna electronics.... read more

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Make it real: Developing a test framework for PNT systems and devices

OPENING GRAPHIC

Tests of the robustness of commercial GNSS devices against threats show that different receivers behave differently in the presence of the same threat vectors. A risk-assessment framework for PNT systems can gauge real-world threat vectors, then the most appropriate and cost-effective mitigation can be selected. Vulnerabilities of GNSS positioning, navigation and timing are a consequence of the signals’ very low... read more

Canada, US workshops focus on PNT threats

October 26, 2016By
highprecision-gps-l1-receiver-category

Two workshops convened in recent weeks in the U.S. and Canadian capitals, respectively, sought to bring into focus looming threats to the nations’ positioning, navigation and timing capabilities and critical infrastructures. Some of the threats are pervasive — jamming and spoofing — and formed the general topic of the Canadian workshop. Some threats are specific — powerful terrestrial transmitters overwhelming... read more

Are you experienced? Tell us about jamming, spoofing, RF interference encounters

October 11, 2016By

We talk a lot about — and publish a lot of technical articles about — GPS/GNSS jamming, spoofing and unintentional RF interference in GPS World magazine and on this website. Clearly it is an emerging and potentially huge problem. How much of it goes on right now?  Tell us very briefly (10 seconds it will take) if You are experienced... read more

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