基于部分平移不变的小波去噪方法研究

Research on Denoising Based on Partial Translation Invariance Wavelet Transform

针对目前消除gibbs现象的方法-平移不变法的平移量大,提出了部分平移不变法。既通过Haar小波可以消除奇异点处于中间位置时的gibbs。仿真实验表明,上述方法在减少平移量的情况下也可以很好地消除gibbs现象。

Aimed at the great computation work of the method-translation invariance that can eliminate gibbs, the partial translation invariance is presented. Haar wavelet can eliminate gibbs if the singularity is in the middle of the signal. Experiment of simulation indicates that partial translation invariance can also eliminate gibbs while reducing translation work.