内涵北航信号处理系统设计与实现的考核题的答案和一篇综述，里面代码实现了滤波等功能，方便后来人使用-Connotation buaa signal processing system design and implementation of the examination the answer to question and a review, inside a filter code realization, and other functions, convenient use future

画出矩形脉冲波形，并对其进行调制，载波为正弦信号，并画出任意延时后的波形-Draw the rectangular pulse waveform, and its modulation, Carrier is a sinusoidal signal, and to draw an arbitrary delay the waveform after