Galileo and Compass: A Tale of Also-Runnings
December 19, 2012
Beating up the backstretch neck and neck, tied for third in the GNSS race, Galileo and Compass today […]
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Beating up the backstretch neck and neck, tied for third in the GNSS race, Galileo and Compass today […]
Two British technologists backed by the U.K. Ministry of Defense have filed patents on the future interoperable GPS […]
Two British technologists backed by the U.K. Ministry of Defense have filed patents on the future interoperable GPS and Galileo signal designs that severely disrupt modernization plans for both systems and suddenly, unexpectedly place receiver manufacturers in a highly uncertain and unfavorable situation. Some of the patents have been granted in the U.K. and in Europe, and applications are pending in U.S. patent court, with a ruling expected at any time.
A subsidiary of the UK Ministry of Defence has been granted a UK patent on the MBOC signal […]
Performance of Multiplexed Binary Offset Carrier Modulations for Modernized GNSS SystemsA candidate for modernized GNSS civil signals in the L1/E1 band was BOC(1,1), a binary-offset-carrier signal with a “split spectrum” that has negligible impact on the existing GPS signals. However, a signal with better acquisition capabilities and improved multipath performance (while still compatible with the existing GPS signals) is a multiplexed BOC modulation, MBOC(6,1,1/11). The MBOC spectrum can be achieved by following one of several different signal-construction paths with some resulting differences in how a receiver tracks the signal and its associated performance.
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