Method for separating a desired signal from an interfering signa

Details Method for separating a desired signal from an interfering signa Method for separating a desired signal from an interfering signa

1998-09-28

2000-04-18

Pham, Chi H.

Pulse or digital communications

Receivers

Interference or noise reduction

342101, 379410, 708404, H03D 104, G01S 1300, H04M 100, G06F 1500

Patent

active

060524219

ABSTRACT:
A method for separating a desired signal from an interfering signal, which is particularly useful when the desired signal is substantially weaker than the interfering signal, includes the steps of providing a combined signal which contains both a desired signal and an interfering signal; performing a Fourier transform upon the combined signal; providing a reference function which is a function of the amplitude, frequency and phase of the interfering signal; performing a Fourier transform upon the referenced function; multiplying the real components of the Fourier transform of the combined signal by the real components of the Fourier transform of the reference signal to form a product; and subtracting the product from the Fourier transform of the combined signal to form transformed data less interference, i.e., the desired signal.

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