GNSS

ESNC University Challenge Recognizes Hail Suppression Project

November 10, 2014By

A hail suppression project dubbed RO-BERTA by the University of Applied Sciences, Rosenheim (Germany), has been selected the winner of the European Satellite Navigation Competition’s (ESNC) University Challenge. Judged by an international expert jury, the University Challenge is a special prize to reward innovative ideas emerging from Europe’s universities. The Hail Navigator system is designed to reduce damage caused by hail. Based on the premise of... read more

Misplaced Galileo Satellite Moving to New Orbit

November 10, 2014By
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The fifth Galileo navigation satellite, one of two left in the wrong orbit this summer, will make a series of maneuvers this month as a prelude to its health being confirmed. The aim is to raise the lowest point of its orbit — its perigee — to reduce the radiation exposure from the Van Allen radiation belts surrounding Earth, as well as to put... read more

This article is tagged with and posted in Featured Stories, Galileo, GNSS News, Latest News

Second GLONASS-K1 Satellite Launch Coming November 30

November 6, 2014By
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News courtesy of CANSPACE Listserv.   According to ISS Reshetnev, the manufacturer of GLONASS satellites, the second GLONASS-K1 satellite (serial number 12L) has just been delivered to the Plesetsk Cosmodrome. It is now being prepared for launch November 30. The launch date had previously been set as November 20. Reshetnev made a number of production design changes to this GLONASS... read more

This article is tagged with and posted in Featured Stories, GLONASS, GNSS News, Latest News

GNSS Lies, GNSS Truth

November 6, 2014By
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A new method detects spoofing attacks that are resistant to standard RAIM technique and can sense an attack in a fraction of a second without external aiding. The signal-in-space properties used to detect spoofing are the relationships of the signal arrival directions to the vector that points from one antenna to the other. A real-time implementation succeeded against live-signal spoofing attacks aboard a superyacht cruising in international waters. read more

Innovation: A Bright Idea

November 4, 2014By
FIGURE 5. The light of the fourth lamp in the corridor is blocked by shelves, and the corresponding sine-like light pattern does not appear.

Testing the Feasibility of Positioning Using Ambient Light By Jingbin Liu, Ruizhi Chen, Yuwei Chen, Jian Tang, and Juha Hyyppä AND THEN THERE WAS LIGHT. Well, the whole electromagnetic (EM) spectrum, actually. Visible light occupies only a small portion of the spectrum, which extends from below the extremely low frequency (ELF) 3 to 30 hertz band with equivalent wavelengths of... read more

This article is tagged with , and posted in Algorithms & Methods, Innovation

Airbus Defence & Space Wins ESNC Competition

November 3, 2014By
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The winner of the European Satellite Navigation Competition (ESNC) 2014 is Airbus Defence & Space, which won over the jury of experts from around the world with its ground-breaking and cost-effective receiver for the Galileo Public Regulated Service (PRS). The award winners were announced October 23 at an awards ceremony held at the Berlin headquarters of Deutsche Telekom. The awards recognize innovations in the... read more

The System: Fregat Design Ambiguity Steered Galileo Wrong

November 1, 2014By

Cross-Installed Hydrazine, Helium Lines Froze Thrusters The root cause of the anomaly that sent two Galileo satellites into the wrong orbit on August 22 was a shortcoming in the system thermal analysis performed during stage design, and not an operator error during stage assembly, according to findings by an independent inquiry board. The independent inquiry board was created by Arianespace,... read more

This article is tagged with , , , , , , , and posted in Galileo, GNSS News, The System

Toward a Unified PNT — Part 2

October 31, 2014By
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The coming requirements of greater accuracy and reliability in a range of challenging environments for a multitude of mission-critical applications require a multisensor approach and an over-arching methodology that does not yet exist. read more