Code acquisition and tracking circuit using switched matched filter and sliding correlators
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United States of America Patent
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Jul 14, 1998
Grant Date -
N/A
app pub date -
Jul 30, 1996
filing date -
Jul 31, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A filter circuit largely reducing electric power consumption compared with a conventional one, as well as realizing the initial acquisition in high enough speed. In a filter circuit according to the present invention, a matched filter and a sliding correlator are used in parallel; the first acquisition and holding is executed by a matched filter, a correlating operation is executed by a sliding correlator and a voltage supply to the matched filter is stopped.
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