Detection of burst signal transmissions
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United States of America Patent
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-
Jul 24, 1990
Grant Date -
N/A
app pub date -
Oct 21, 1988
filing date -
Oct 21, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method is disclosed for detecting the presence of and synchronizing to burst transmissions which contain repeated acquisition codes. The received signal is applied as an input to a surface acoustic wave (SAW) filter which is matched to detect one repetition of the code. The SAW filter correlation output is sampled at times corresponding to the times of arrival of each repetition of the code. The mean value and variance of the correlation values for each repetition are computed, and the system declares an acquisition when the mean value and variance meet certain criteria.
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