数字信号处理实验指导 MATLAB版本　书上代码

数字信号处理实验指导 MATLAB版本，书上代码 费了很多的劲才搞下来

% Program P1_1
% Generation of a Unit Sample Sequence 
clf;
% Generate a vector from -10 to 20
n = -10:20;
% Generate the unit sample sequence
u = [zeros（110） 1 zeros（120）];
% Plot the unit sample sequence
stem（nu）;
xlabel（‘Time index n‘）;ylabel（‘Amplitude‘）;
title（‘Unit Sample Sequence‘）;
axis（[-10 20 0 1.2]）;

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     文件         865  1998-10-28 15:32  PROGRAMS\LABEX2\P2_3.m
     文件         752  1998-10-28 15:47  PROGRAMS\LABEX2\P2_4.m
     文件         952  1998-10-28 15:52  PROGRAMS\LABEX2\P2_6.m
     文件         452  1998-11-03 13:26  PROGRAMS\LABEX2\P2_8.m
     文件         600  1998-11-03 13:24  PROGRAMS\LABEX2\P2_9.m
     文件         487  1998-11-03 13:58  PROGRAMS\LABEX2\P2_2.m
     文件         259  1998-10-28 15:48  PROGRAMS\LABEX2\P2_5.m
     文件         428  1998-11-04 12:29  PROGRAMS\LABEX2\P2_7.m
     文件         905  1998-11-03 13:36  PROGRAMS\LABEX2\P2_1.m
     文件         246  1998-10-28 16:11  PROGRAMS\LABEX3\Circonv.m
     文件         329  1998-10-05 14:52  PROGRAMS\LABEX3\P3_10.m
     文件         128  1998-10-22 17:22  PROGRAMS\LABEX3\P3_12.m
     文件         617  1998-10-28 12:20  PROGRAMS\LABEX3\P3_3.m
     文件         483  1998-10-28 16:09  PROGRAMS\LABEX3\P3_5.m
     文件         374  1998-11-03 13:30  PROGRAMS\LABEX3\P3_7.m
     文件         534  1998-11-03 13:28  PROGRAMS\LABEX3\P3_8.m
     文件         288  1998-10-22 17:22  PROGRAMS\LABEX3\P3_9.m
     文件         725  1998-10-05 14:52  PROGRAMS\LABEX3\P3_1.m
     文件         675  1998-10-28 16:19  PROGRAMS\LABEX3\P3_11.m
     文件         558  1998-10-28 12:22  PROGRAMS\LABEX3\P3_2.m
     文件         562  1998-10-28 12:24  PROGRAMS\LABEX3\P3_4.m
     文件         564  1998-10-28 12:25  PROGRAMS\LABEX3\P3_6.m
     文件         252  1998-10-28 16:11  PROGRAMS\LABEX3\circshift.m
     文件         402  1998-11-03 13:32  PROGRAMS\LABEX4\gain.m
     文件         241  1998-10-05 14:53  PROGRAMS\LABEX4\P4_1.m
     文件        1199  1998-10-28 16:30  PROGRAMS\LABEX4\P4_3.m
     文件         156  1998-10-05 14:53  PROGRAMS\LABEX4\P4_4.m
     文件         238  1998-10-28 16:27  PROGRAMS\LABEX4\P4_2.m
     文件         336  1998-10-28 15:16  PROGRAMS\LABEX1\P1_2.m
     文件         333  1998-10-28 15:19  PROGRAMS\LABEX1\P1_4.m
     文件         240  1998-10-28 15:22  PROGRAMS\LABEX1\P1_6.m
............此处省略47个文件信息