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Approximating signal power and noise power in a system

  • US 6,975,693 B1
  • Filed: 04/25/2000
  • Issued: 12/13/2005
  • Est. Priority Date: 03/11/1998
  • Status: Expired due to Term
First Claim
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1. A demodulator having a power approximation circuit coupled to receive a real and imaginary component of a complex signal, the power approximation circuit generating an approximate power value which indicates an actual power value for the complex signal by combining absolute values of the real and imaginary components and then applying an expectation function to the combined absolute values.

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