×

Digital interference suppression system for radio frequency interference cancellation

  • US 5,872,540 A
  • Filed: 06/26/1997
  • Issued: 02/16/1999
  • Est. Priority Date: 06/26/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. A digital adaptive suppression system for suppressing interference and jamming signals from a spread spectrum signal, the system comprising,an antenna system for receiving the spread spectrum signal and any inband interference and jamming signals and dividing the received signals into two orthogonally polarized analog antenna output signal components;

  • analog-to-digital conversion means for converting each of said two orthogonally polarized analog output signal components to digital inputs;

    a digital polarimeter for receiving the digital inputs and for receiving digital phase shifting coefficients from a coefficient generator to provide a digital polarimeter output representing the spread spectrum signal with the interference and jamming signals suppressed;

    a coefficient generator connected with said digital polarimeter for generating the phase shifting coefficients and repetitively updating the phase shifting coefficients until the digital polarimeter output is at a minimum representing the spread spectrum signal with interference and jamming suppressed.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×