A pulse wave filter method based on wavelet transform soft-threshold and adaptive algorithm

A new method for pulse wave filter is proposed on the basis of wavelet transform soft-threshold denoising and wavelet adaptive algorithm in this paper. The wavelet soft-threshold filter and wavelet adaptive filter are made as combination filter system, after the high frequency noises are eliminated with wavelet soft-threshold denoising, the baseline drift is removed by wavelet adaptive filter, and then the clean pulse wave signals will be obtained. At last, through analysis the simulation and experimental wave´s results and compare the practice parameters with traditional methods, it is proved that the advance and effectiveness of this new method.