Signal acquisition and reception method for a global positioning system signal
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United States of America Patent
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-
Dec 13, 1994
Grant Date -
N/A
app pub date -
Aug 4, 1993
filing date -
Aug 5, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A signal acquisition method for a GPS receiver which eliminates the necessity of a clock circuit for keeping the current time and also a backup battery for memory is disclosed. According to the signal acquisition method, upon starting of acquisition of a GPS satellite after the power source to the GPS receiver is turned on, using a matched filter, an acquisition operation is performed for objects of all of GPS satellites which may possibly be disposed until after a signal of at least one of the GPS satellites is acquired.
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