Method and apparatus for the reception and demodulation of spread spectrum radio signals
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United States of America Patent
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Nov 24, 1992
Grant Date -
N/A
app pub date -
May 24, 1990
filing date -
May 24, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A spread spectrum receiver with filters matched to transmitter chip codes are implemented in digital circuits along with a digital circuit for acquisition and tracking of the arrival times of the chip codes. The digital circuit implementations are used for the noncoherent demodulation of pulse position spread spectrum modulation signals where the pulse is a carrier modulator by a chip code and for the noncoherent demodulation of multiple chip code modulation signals where each information symbol is represented by one of several chip codes modulating a carrier.
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