Transmission process having spectrum spread phase differential modulation adn demodulation using orthogonal pseudorandom sequences
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United States of America Patent
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Oct 13, 1998
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N/A
app pub date -
Nov 21, 1995
filing date -
Dec 19, 1994
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Abstract
Transmission process having spectrum spread phase differential modulation and demodulation using orthogonal pseudorandom sequences. Use is made of two orthogonal pseudorandom sequences (C.sub.E1, C.sub.E2) for spreading the spectrum of the symbols (d.sub.k) to be transmitted and detection takes place of the phase difference between the received signals filtered by filters matched to the two sequences, one being delayed.
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