摘要
为了避免由于阈值选取不当造成信号失真,将模糊理论引入到小波阈值去噪中,利用两个常用隶属函数构造了两种模糊阈值去噪方法。仿真结果表明上述方法有效地避免了小波阈值法误判的缺陷,去噪效果明显。
To avoid the signal distortion aroused by the incorrect selection of threshold, it applies fuzzy theory into wavelet threshold denoising method, which uses two membership functions to construct two fuzzy threshold denoising methods. Simulations show that the above methods conquer the mistakes of wavelet threshold method and achieve good results.
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2004年第z1期813-814,共2页
Chinese Journal of Scientific Instrument
基金
天津市自然科学基金资助项目(023601611)。
关键词
小
波
去
噪
模
糊
阈
值
Wavelet Denoising Fuzzy Threshold
