By Jens-André Paffenholz This blog presents an efficient procedure for directly geo-referencing static 3D laser scans. This is a worthwhile way to obtain the required transformation parameters from the local sensor-defined coordinate system to a global system. Therefore, a multi-sensor systems (MSS) is designed with a phase-measuring laser scanner and 3D positional sensors (see Figure 1). By means of at least... read more
Recent events, some of them summarized here, may appear to have dealt setbacks to LightSquared, the boundless opportunist of wireless broadband that just happens to interfere with GPS. But the company has not run out of moves yet. Would you, if you had $20 billion at stake? The latest gambit, led by lawyers and cloaked in jargon, appears to be an end-run around the U.S. government to appeal to the International Telecommunications Union, which has ultimate and international authority over spectrum. Watch out, GLONASS and Galileo — and U.S. troops operating in foreign theaters. read more
The European Commission announced that the final two contracts, out of six, for Galileo, Europe’s global navigation satellite programme will be signed at 16.00 by the European Space Agency on behalf of the European Commission at the prestigious Le Bourget Aerospace Fair in Paris. Signature of these contracts is essential for the deployment and provision of three initial services by Galileo in 2014. read more
The European Space Agency (ESA) announced that two Soyuz launchers which will fly the first four satellites of Europe’s Galileo navigation system into orbit have arrived at Kourou harbour in French Guiana. read more
Originally, the LightSquared/GPS Technical Working Group’s (TWG) report was due to the FCC on June 15. LightSquared requested from the FCC, and received, a two-week extension to submit their report. Three days later, LightSquared announced they found a solution to the GPS interference problem. Their proposed solution is not good news for the high-precision GPS user community. read more
Concerns by government and the private sector about GPS interference from LightSquared’s proposed wholesale LTE service accelerates. Government experts just reported that interference with GPS occurred in high portions of LightSquared's spectrum bands and little in the lower spectrum. The National Space-Based PNT Advisory Board’s tests showed that some GPS receivers lost signal strength while others were fully disabled by LightSquared's signal. FCC Chairman Genachowski, under fire for granting LightSquared a conditional waiver, has reiterated that he will not permit LightSquared to begin commercial service without first resolving concerns about potential interference to GPS devices. read more
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