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UNBIASED SIGNAL-TO-NOISE RATIO ESTIMATION FOR RECEIVER HAVING CHANNEL ESTIMATION ERROR

  • US 20090279643A1
  • Filed: 05/06/2008
  • Published: 11/12/2009
  • Est. Priority Date: 05/06/2008
  • Status: Active Grant
First Claim
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1. A method for estimating channel noise power in binary phase shift keying (BPSK) modulated telecommunication, the method comprising:

  • receiving over the channel a first known signal, the first known signal having an identified functional form;

    after receiving the first known signal, formulating a channel transfer function estimate for the channel, the channel transfer function estimate being based on the first known signal and including a channel estimation error;

    receiving over the channel a second BPSK signal, the second BPSK signal including noise having a power;

    equalizing the second BPSK signal using the transfer function estimate; and

    estimating the second BPSK signal noise power, the noise power being substantially independent of the channel estimation error.

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