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Parallel correlator for global positioning system receiver

  • US 5,579,014 A
  • Filed: 01/20/1995
  • Issued: 11/26/1996
  • Est. Priority Date: 01/20/1995
  • Status: Expired due to Term
First Claim
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1. A correlator for determining identities of a plurality of satellites comprising:

  • antenna means for receiving a unique signature signal from each one of a plurality of said satellites;

    analog-to-digital converter means coupled to said antenna means for converting signature signals from analog form to digital form;

    a capacitor matrix coupled to said analog-to-digital converter means, said matrix comprising a plurality of rows of capacitors wherein each of said capacitors in each respective row is weighted proportional to the signature signal of a respective one of said satellites such that each respective output signal of said capacitor matrix corresponds to the signature signal of a respective one of said satellites; and

    output means coupled to said capacitor matrix for producing signals that identify said satellites according to their respective signature signals.

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