作者: M. Vetterli , C. Herley
DOI: 10.1109/78.157221
关键词: Quadrature mirror filter 、 Mathematics 、 Second-generation wavelet transform 、 Lifting scheme 、 Filter design 、 Algorithm 、 Continuous wavelet 、 Arithmetic 、 Filter bank 、 Wavelet 、 Discrete wavelet transform
摘要: The wavelet transform is compared with the more classical short-time Fourier approach to signal analysis. Then relations between wavelets, filter banks, and multiresolution processing are explored. A brief review given of perfect reconstruction which can be used both for computing discrete transform, deriving continuous bases, provided that filters meet a constraint known as regularity. Given low-pass filter, necessary sufficient conditions existence complementary high-pass will permit derived. condition posed Bezout identity, it shown how possible find all higher-degree based on an analogy theory Diophantine equations. An alternative continued fractions also given. These results design highly regular generate biorthogonal bases symmetries. >