说明：  本书取材于作者在多所国际知名大学讲授”小波信号处理”课程时的讲义，作者以信号处理的问题为背景，用浅显的数学语言阐述小波理论及应用，使读者可以透过复杂的数学公式来窥探小波的精髓，但又不致陷入小波纯数学理论的迷宫。 本书既可以让计算机及电子工程系的学生了解工程问题的数学描述．又可以让数学系的学生了解数学公式的工程意义，是一本极有价值的教材及参考书。
(The book based on the author in a number of internationally renowned universities to teach wavelet signal processing courses of lectures, the author to the problem of signal processing for the background, using simple mathematical language of wavelet theory and application, so that readers can be complicated mathematical formula to spy on the essence of wavelet, but not a pure mathematical theory of wavelet maze. The book not only allows the computer and electronic engineering students to understand the engineering problems of the mathematical description. Department of Mathematics at the same time enable the students to understand the mathematical formulas in engineering practice, is an extremely valuable teaching materials and reference books.)