Based on an auto-adaptive filtering speech, high-order moment is used for separating overlapping speech signals, and an operation algorithm is given; measures are provided for improving the same matrix characteristic values, of which it is difficult to be separated.

Compare of three B -spline wavelet bases in processing overlapped signals;

To jam instantaneous frequency measure receiver to measure frequency,multi-overlap signal is presented.

Method of solving LPC coefficients of speech signals;

the Character Analysis of Speech Signal with Time and Frequency Based on MATLAB;

Method to determine delay time of speech signal in reconstructed phase space;

Blind source separation of speech signals based on the amplitude correlation of neighbour bins;

The Study of Blind Source Separation of Speech Signals;

Based on the analysis of average displacement (AD) method for selection of time delay in phase space reconstruction of speech signals, this paper modifies the original measurement of AD method to get a better criterion for proper time delay selection, which has a sound theoretic basis and can produce better effect.

The design of the voice signal real time noise cancellation software;

This paper elaborates on the basic principle of linear preduction inanalysing voice signal technology and solves the effective calculation method about thecoupled equations of linear preduction by using self-interrelative theory.

A DSP control based voice systems, with TMS320VC5402bas a microcontroller, realizes the functions of voice signal acquisition compression and data transmission.