先上代码,后出结果图. a. n = [-5:5]; x=2*impseq(-2,-5,5) - impseq(4,-5,5); set(gcf,'Color',[1,1,1]) % 改变坐标外围背景颜色 stem(n,x); title('Sequence in Problem 2.1a'); xlabel('n'); ylabel('x(n)'); grid on; b. n = [0:20]; x1 = n .* (stepseq(0,0,20) - stepseq(10,0,20));…

x = [3, 11, 7, 0, -1, 4, 2]; nx = [-3:3]; h = [2, 3, 0, -5, 2, 1]; nh = [-1:4]; [y,ny] = conv_m(x,nx,h,nh) 结果:…

使用一种固定窗函数法设计带通滤波器. 代码: %% ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ %% Output Info about this m-file fprintf('\n***********************************************************\n'); fprintf(' <DSP using MATLAB> Prob…

余弦序列的谱,原始频率w0会泄露到其它频率处. 从其它书中找到的证明过程: 代码: %% ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ %% Output Info about this m-file fprintf('\n***********************************************************\n'); fprintf…

频率采样定理是这样的: 由上述定理可知,一个有限长序列(假设为N)的DTFT等间隔采样,采样数至少大于等于N. 代码: %% ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ %% Output Info about this m-file fprintf('\n***********************************************************\n'…

代码: %% ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ %% Output Info about this m-file fprintf('\n***********************************************************\n'); fprintf(' <DSP using MATLAB> Problem 5.4 \n\n'); ban…

代码: %% ------------------------------------------------------------------------ %% Output Info about this m-file fprintf('\n***********************************************************\n'); fprintf(' <DSP using MATLAB> Problem 4.20 \n\n'); banner();…

按照题目的意思需要利用DTFT的性质,得到序列的DTFT结果(公式表示),本人数学功底太差,就不写了,直接用 书中的方法计算并画图. 代码: %% ------------------------------------------------------------------------ %% Output Info about this m-file fprintf('\n***********************************************************…

代码: %% ------------------------------------------------------------------------ %% Output Info about this m-file fprintf('\n***********************************************************\n'); fprintf(' <DSP using MATLAB> Exameple 10.4 \n\n'); [v, d] =…

代码: %% ------------------------------------------------------------------------ %% Output Info about this m-file fprintf('\n***********************************************************\n'); fprintf(' <DSP using MATLAB> Exameple 9.6 \n\n'); time_stamp…