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Receiver for DS-CDMA signals

  • US 6,643,320 B1
  • Filed: 11/08/1999
  • Issued: 11/04/2003
  • Est. Priority Date: 11/28/1998
  • Status: Expired due to Fees
First Claim
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1. A receiver for receiving spread spectrum direct sequence code division multiple access signals (DS-CDMA) including a plurality of correlator channels each of which has a threshold level for determining when correlation between a received pseudo random noise (PRN) code from a given satellite and a locally generated PRN code has been achieved, said receiver further including means for assessing the correlation noise level, means for predicting the signal strength of the signal transmitted by the satellite whose code it is being attempted to correlate and means for setting the threshold level of each of the correlators to a value which is dependent on the correlation noise level and the predicted signal strength.

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