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Multipath diversity spread spectrum receiver

  • US 4,291,410 A
  • Filed: 10/24/1979
  • Issued: 09/22/1981
  • Est. Priority Date: 10/24/1979
  • Status: Expired due to Term
First Claim
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1. A multipath diversity spread spectrum receiver for receiving spread spectrum signals, comprising:

  • detector means for detecting the spread spectrum signals and to provide a stream of correlation pulses that relate to transmitted data;

    integrator means for decision directed coherent integrating the stream of correlation pulses including;

    normalizer means for normalizing the stream of correlation pulses to obtain a stream of normalized pulses,first summing means for summing each member of the stream of normalized pulses with a corresponding member of a stream of output pulses to obtain a stream of combination pulses,delay register means for delaying each member of the stream of combination pulses one symbol period to obtain the stream of output pulses, andfeedback path means for connecting the stream of output pulses to the summing means; and

    first data detector means for decoding the transmitted data from the stream of output pulses to obtain a stream of detected data symbols.

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