数字信号处理 信号与系统响应（1）　　熟悉连续信号经理想采样前后的频谱变化关系，加深对时域采样定理的理解。

（2）　　熟悉时域离散系统的时域特性

（3）　　利用卷积方法观察分析系统的时域特性

（4）　　掌握序列傅里叶变换的计算机实现方法，利用序列的傅里叶变换对连续信号、离散信号及系统响应进行频域分析。

-Digital Signal Processing Signals and Systems in response to (1) familiar with the continuous signal manager would like to sample before and after the change in the relationship between the spectrum and deepen the understanding of time-domain sampling theorem understanding. (2) familiar with the time-domain discrete-time systems time-domain characteristics (3) the use of convolution method of observing and analyzing the time-domain characteristics of the system (4) to master the computer sequence Fourier transform method, using sequence of Fourier transform of continuous signal , discrete signals and system response to frequency domain analysis.