The Method of Instantaneous Pulse Detection Based on Hybrid Wa velet Transform
10.3321/j.issn:1001-5515.2001.01.016
- VernacularTitle:基于混合小波变换的瞬态信号检测方法
- Author:
Xiaopei WU
1
;
Huanqing FENG
;
Heqin ZHOU
;
Tao WANG
Author Information
1. Department of Electronic Science and Technology USTC
- From:
Journal of Biomedical Engineering
2001;18(1):60-63
- CountryChina
- Language:Chinese
-
Abstract:
In this paper, we discuss the relation betw een matched filter and wavelet transform(WT), and point out that wavelet transf orm is just the matched filter with changeable detection template. According to this idea, the method of signal detection based on hybrid wavelet transform (HWT ) is proposed. HWT in this paper means that in WT decomposition and reconstructi on, we use two different mother wavelets. One is used as a changeable template for the pulses detection and the other is used for the characteristic enhancement of detected pulse. This method has been applied to the interference pulse dete ction in EEG signal. The experiment result shows that HWT has the good property for instantaneous signal detection.
