This book originated from a training course for engineers at the research and developmentcenter of TELEBRAS.the forlTler Brazilian telecommunications holding．That course wastaught by the first author back in 1987，and its main goal was to present efficient digitalfilter design methods suitable for solving some oftheir engineering problems．Later on，thisoriginal text was used by the first author as the basic reference for the digital filters anddigital signal processing courses of the Electrical Engineering Program at COPPE／FederalUniversity of Rio de Janeiro．

迪尼兹编著的《数字信号处理》将理论与实际有机融合，涵盖了数字信号处理(DSP)分析和设计的所有重要内容，提供了数字信号处理这一前沿技术领域难得的设计理念和方法。《数字信号处理》不仅可作为高等院校电子、通信等专业本科生或研究生教材，还可作为工程技术人员DSP设计方面的参考用书。

第2版在上一版的基础上，扩充了滤波器组和小波分析的内容，新增了随机信号处理、谱估计和求解差分方程的内容，数学推导中给出了易于读者理解的步骤。第2版还提供了120个范例、20个案例研究、约400道练习题。此外，第2版还有一大新特点——每章末增加了一节“Do-it-Yourself”，使读者通过MATLAB实验获得解决实际信号处理问题的亲身体验。

Preface

1 Discrete-time signals and systems

2 The Z and Fourier transforms

3 Discrete transforms

4 Digital filters

5 Fir filter approximations

6 IIR filter approximations

7 Spectral estimation

8 Multirate systems

9 Filter banks

10 Wavelet transforms

11 Finite-precision digital signal processing

12 Efficient FIR structures

13 Efficient IIR structures

References

Index