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Adaptive direct conversion receiver

  • US 7,072,424 B2
  • Filed: 04/23/2002
  • Issued: 07/04/2006
  • Est. Priority Date: 04/23/2002
  • Status: Expired due to Fees
First Claim
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1. A method for determining a cause of a high error rate in a receiver configured to receive and process a signal, the method comprising:

  • demodulating a signal received by a receiver to create a baseband signal;

    calculating an error rate at a first time;

    adjusting an amplification level applied to the signal as follows;

    increasing the amplification level applied to the signal; and

    decreasing the amplification level applied to the baseband signal;

    calculating an error rate at a second time after the adjusting, wherein the error rate is derived from the signal at a second time;

    comparing the error rate at the first time to the error rate at the second time; and

    determining that the high error rate is caused by an interference signal if the error rate at the second time is different than the error rate at the first time.

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