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Supression of unwanted signal elements by sinusoidal amplitude windowing

  • US 8,085,886 B2
  • Filed: 11/19/2004
  • Issued: 12/27/2011
  • Est. Priority Date: 11/21/2003
  • Status: Active Grant
First Claim
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1. A method for digitally processing a received signal containing regular bursts of unwanted signal within the received signal, the method comprising the steps of:

  • (i) establishing timing characteristics of the regular bursts of unwanted signal to establish their positions in a portion of said received signal;

    (ii) generating a time domain sinusoidal function using said established timing characteristics, said time domain sinusoidal function having a zero crossing coinciding with the position of each of the regular bursts of unwanted signal; and

    (iii) applying the time domain generated sinusoidal function to said signal portion to selectively reduce the amplitude of said regular bursts of unwanted signal relative to other elements of said received signal in an output signal.

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