Method for estimating carrier frequency of PSK (phase shift keying) signal in Alpha-stable distribution noise

Method for estimating carrier frequency of PSK (phase shift keying) signal in Alpha-stable distribution noise

  • CN 104,038,454 A
  • Filed: 06/20/2014
  • Published: 09/10/2014
  • Est. Priority Date: 06/20/2014
  • Status: Active Grant
First Claim
Patent Images

1. Alpha stablizes a carrier frequency estimating method for psk signal under partition noise, it is characterized in that:

  • said method comprising the steps of;

    S1 asks circulation covariant function to the psk signal that Alpha stablizes partition noise that contains receiving;

    S2 carries out Fourier transform to described circulation covariant function, asks its circulation co-variation spectrum;

    The cross section that S3 extracts cycle frequency ε

    =0Hz by described circulation co-variation spectrum;

    S4 searches for the peak value of the positive and negative semiaxis in described cross section, finds the positive and negative frequency values that described peak value is corresponding, and after taking absolute value, averages as the estimated value of carrier frequency.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×