GNSS

Roscosmos could launch up to 4 replacement GLONASS in 2017

November 14, 2016By

Russia’s Roscosmos space agency could launch up to four GLONASS navigation satellites in 2017, reports sputniknews.com. The satellites will be launched only to replace malfunctioning satellites if necessary, according to Deputy Director General for Automatic Space Complexes Mikhail Khailov. “It is planned to carry out up to four launches [of GLONASS satellites] in 2017 … We will carry them out only when... read more

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China launches pulsar navigation satellite

November 14, 2016By

China has successfully launched a navigation satellite that will conduct in-orbit experiments using pulsar detectors to demonstrate new technologies, reports The Indian Express. The X-ray pulsar navigation satellite XPNAV-1 was launched Nov. 10 atop a Long March 11 solid-fueled rocket from the Jiuquan Satellite Launch Center in China’s northwest. The experimental pulsar navigation mission carries two sensors to pick up... read more

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Poll: Experiences with jamming, spoofing and RF interference

November 14, 2016By

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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Four Galileos now atop Ariane 5 launcher

November 11, 2016By

From the European Space Agency Europe’s next four Galileo navigation satellites are together on their dispenser atop the Ariane 5 launcher due to launch them next Thursday from Europe’s Spaceport in French Guiana. Having been attached to their dispenser as a combined upper composite, the four 715-kg satellites were transported to the final assembly building on Oct. 31. The next step... read more

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New BeiDou Interface Control Document released

November 10, 2016By

Version 2.1 of the BeiDou Navigation Satellite System Signal In Space Interface Control Document for the Open Service Signal has been released. The document was issued by the China Satellite Navigation Office. It defines the specification related to open service signals B1I and B2I between the space segment and the user segment of the BeiDou Navigation Satellite System. B2I will... read more

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FAA releases National Airspace System Navigation Strategy

November 10, 2016By

The United States Federal Aviation Administration (FAA) has released its Performance-Based Navigation (PBN) National Airspace System (NAS) Navigation Strategy 2016, the result of a concerted year-long effort by FAA and aviation industry stakeholders. It describes how the FAA intends to transition U.S. NAS operations over the near- (2016–2020), mid- (2021–2025) and far-term (2025–2030) from predominantly point-to-point navigation, reliant on hundreds... read more

Swift Navigation introduces Piksi Multi GNSS receiver at Intergeo 2016

November 9, 2016By

Swift Navigation debuted its newest product, Piksi Multi, at Intergeo 2016, which was held Sept. 11-13 in Hamburg, Germany. Piksi Multi is a multi-band, multi-constellation high-precision GNSS receiver for the mass market. A San Francisco-based startup, Swift Navigation introduced the first Piksi GNSS receiver in January. read more

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Expert Opinions: Testing and simulating against GNSS jamming, spoofing

November 8, 2016By

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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