×

SYSTEM AND METHOD FOR GENERATING AND DETECTING THE IDENTIFIER SEQUENCE OF THE BANDWIDTH-LIMITED TRANSMITTER

  • US 20110044390A1
  • Filed: 11/16/2006
  • Published: 02/24/2011
  • Est. Priority Date: 10/20/2006
  • Status: Active Grant
First Claim
Patent Images

1. A system for generating and detecting an identifier sequence of a bandwidth-limited transmitter, comprising an identifier sequence generating portion and an identifier sequence detecting portion, wherein,the identifier sequence generating portion comprises:

  • a frequency-domain random sequence generating device for generating a frequency-domain random sequence;

    a frequency-domain orthogonal sequence generating device for generating a frequency-domain orthogonal sequence;

    a frequency-domain truncating device for frequency-domain truncating the frequency-domain orthogonal sequence scrambled by the frequency-domain random sequence;

    a frequency-time transforming device for performing frequency-time domain transformation of the truncated frequency-domain sequence;

    a periodic extending device for performing periodic extension of the signal transformed into time-domain;

    the identifier sequence receiving portion comprises;

    a time-domain truncating device for performing time-domain truncation of the received signal;

    a time-frequency domain transforming device for performing time-frequency domain transformation of the truncated time-domain signal to obtain frequency-domain signal;

    a frequency-domain random sequence generating device for generating a frequency-domain random sequence;

    a frequency-domain orthogonal sequence generating device for generating a frequency-domain orthogonal sequence;

    a frequency-domain correlator for correlating the frequency-domain orthogonal sequence with the frequency-domain signal de-scrambled by the frequency-domain random sequence; and

    a threshold detecting device for detecting output of the frequency-domain correlator and determining the transmitter to which the identifier sequence belongs.

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