×

Detecting and measuring interference contained within a digital carrier

  • US 7,639,761 B2
  • Filed: 02/26/2003
  • Issued: 12/29/2009
  • Est. Priority Date: 03/04/2002
  • Status: Active Grant
First Claim
Patent Images

1. A method of detecting in-band interference in a carrier signal in a communication system comprising the steps of:

  • acquiring a digital signal comprising the carrier signal and an in-band interference signal having a source that is independent from that of the carrier signal, said acquiring including receiving the signal at a receiver, filtering the signal and digitizing the signal;

    formatting the digital signal including filtering the digital signal, and performing decimation and re-sampling of the digitized signal; and

    extracting the interference signal without interrupting the carrier signal by performing blind equalization and demodulation using a blind equalizer demodulator thereby forming an error vector that is representative of the in-band interference signal.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×