Application of Digital Filter Technology Based on Wavelet Transform
QU Deng-sheng · Boiler Manufacturing · 2004
Wavelet theory and concept are briefly summarized in this paper. By means of the algorithms of signal decomposition and signal reconstruction of Mallet's Wavelet, idiographic signal is analyzed into different frequency,then the useful signal can be reconstructed again. The digital signal is filtered by this method. The filter theory of Wavelet and the algorithm of the decomposition and the reconstruction are described.