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Cross-correlation detection and elimination in a receiver

  • US 7,680,178 B2
  • Filed: 12/07/2005
  • Issued: 03/16/2010
  • Est. Priority Date: 08/24/2000
  • Status: Expired due to Fees
First Claim
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1. A device, comprising:

  • a receiver capable of receipt of a signal that contains more than one pseudo noise (PN) coded signal component;

    a memory coupled to the receiver that stores a plurality of off-peak energy values associated with a PN; and

    a controller coupled to the memory that identifies a sub-set of off-peak energy values are off-peak energy values in order to identify auto-correlation and cross-correlation using the off-peak energy values, and if inconclusive the controller calculates an average of off-peak energy values to identify auto-correlation and cross correlation, where a maximum off-peak energy value from the plurality of off-peak energy values is identified and compared to a predetermined threshold in order to identify auto-correlation.

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