该程序所实现的功能为：完整的实现实验报告中的三个卷积① ｘ1（n）=n u（n） 0≤n≤31

② ｘ2（n）=an u（n） 0≤n≤31 0＜a＜1

③ ｘ3（n）= G（n） 0≤n≤31 G（n）是门序列

以及卷积和y（n）=ｘ1（n）*ｘ3（n）和y（n）=ｘ2（n）*ｘ3（n）-The functions which are realized by the program as follows: the complete realization of the reported experiments, three convolution 1 X1 (N) = NU (n) 0 ≤ n ≤ 31 ② The X2 (n) = an U (n) 0 ≤ n ≤ 31 0 < a < 1 ③ The X3 (n) = G (n) 0 ≤ n ≤ 31 G (n) is the door sequence as well as convolution and y (n) = x1 (n)* x3 (n) and y (n) = x2 (n)* x3 (n)