1、 熟悉理想采样的性质，了解信号采样前后的频谱变化，加深对采样定理的理解。 2、 熟悉离散信号和系统的时域特性。 3、 熟悉线性卷积的计算编程方法：利用卷积的方法，观察、分析系统响应的时域特性。 4、 掌握序列傅氏变换的计算机实现方法，利用序列的傅氏变换对离散信号、系统及系统响 应进行频域分析。 -1, familiar with the nature of the ideal sampling to understand the spectrum of the sign

For restoration of time-domain signals, an estimate of the instantaneous magnitude spectrum is combined with the phase of the noisy signal, and then transformed via an inverse discrete Fourier transform to the time domain. In terms of comput

MIMO OFDM matlab simulation, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Nonlinear discrete system identification.