GLOBAL NAVIGATION SATELLITE SYSTEM SUPERBAND PROCESSING DEVICE AND METHOD
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United States of America Patent
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Aug 25, 2016
app pub date -
Dec 23, 2014
filing date -
Dec 11, 2008
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Abstract
The disclosed global navigation satellite system (GNSS) devices and methods group GNSS satellite signals from different GNSS constellations, as well as other signals of interest, into sub-bands, also called ‘superbands’, by signal frequency for analog filtering and processing, and then further divides each superband for additional processing in the digital domain. Each superband is a frequency range that can include GNSS satellite signals from one, two, three, or more than three, GNSS constellations. Using multiple parallel processing channels allows multiple signal frequency bands that cover a wide bandwidth to be divided into narrower superbands for processing, which increases the processing abilities within the superbands and allows out-of-band interference between superbands to be eliminated. Thus the GNSS satellite signals are divided for processing according to frequency, not according to the originating GNSS satellite constellation.
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