This paper combines adaptive postfilter technique with 3kbps characteristic waveform interpolation (CWI) algorithm.

In this paper,a method of microphone array speech enhancement with wavelet transform and adaptive post-filtering is proposed.

Roll casting flatness detection signal analysis based on adaptive filtering;

Method for deriving respiratory signal from ECG signal based on adaptive filtering;

Particle velocity measurement in gas/solid two-phase flow through adaptive filtering;

Research of adaptive filter processing in magnetic flux leakage signal obtained from oil pipeline;

Application of adaptive filter in active noise control;

Application of adaptive filtering algorithm based on empirical mode decomposition to suppress DSI in PD detection;

Wave impedance estimation using self-adaptive filtering;

Application of self-adaptive filtering technique in GIS local discharge detection;

The results show that after human body image filter by self-adaptive filtering, not only the filter effect is better than the traditional filtering, but also prefects the human body image's edge information.

And through analyze of the ubiquitous disturbances, a scheme of measuring circuit is proposed based on self-adapting filter.