首页解释for i=1:max(max(bw1)) out1=out1+local_maxima(abs_coef1,bw1,i); end out1=out1.*bw1; RIDGE1=zeros(size(coef1)); for i=1:max(max(out1)) [x1,y1]=find(out1==i); x1=x1(1:100:end); if length(x1)<3 break; end cs = spline(y1(1:100:end),x1); x_new1=round(ppval(cs,y1(1):y1(end))); x_new1(find(x_new1<=0))=1; for i=1:length(x_new1) RIDGE1(x_new1(i),y1(i))=1; end end figure(2),imagesc (RIDGE1); title('正常信号脊线')

解释for i=1:max(max(bw1)) out1=out1+local_maxima(abs_coef1,bw1,i); end out1=out1.*bw1; RIDGE1=zeros(size(coef1)); for i=1:max(max(out1)) [x1,y1]=find(out1==i); x1=x1(1:100:end); if length(x1)<3 break; end cs = spline(y1(1:100:end),x1); x_new1=round(ppval(cs,y1(1):y1(end))); x_new1(find(x_new1<=0))=1; for i=1:length(x_new1) RIDGE1(x_new1(i),y1(i))=1; end end figure(2),imagesc (RIDGE1); title('正常信号脊线')

时间: 2024-04-28 11:19:02 浏览: 93

matlab.zip_4 3 2 1

function [out1,out2] = humps(x) HUMPS A function used by QUADDEMO, ZERODEMO and FPLOTDEMO. Y = HUMPS(X) is a function with strong maxima near x = .3 and x = .9. [X,Y] = HUMPS(X) also returns X. With no input arguments, HUMPS uses X = 0:.05:1. Example: plot(humps) See QUADDEMO, ZERODEMO and FPLOTDEMO. Copyright 1984-2014 The MathWorks, Inc. if nargin==0 x = 0:.05:1 end y = 1 ./ ((x-.3).^2 + .01) + 1 ./ ((x-.9).^2 + .04) - 6 if nargout==2, out1 = x out2 = y else out1 = y end qually probable bits, P(0) = P(1) = 0.5. (a) Construct a program to generate 10000 bits with bipolar signaling. (b) Use your program to simulate the bit error performance of the system with Eb/N0 = 0, 2, 4, 6, 8, 10 dB. (c) Compare your simul

这段代码的作用是什么？这段代码的作用是对输入的矩阵 `bw1` 进行多次迭代，每次迭代都调用 `local_maxima` 函数来找到局部最大值，并将这些最大值记录在 `out1` 矩阵中。然后，将 `out1` 与 `bw1` 进行相乘，得到 `out1` 中与 `bw1` 对应位置的值。接下来，根据 `out1` 中的最大值，使用样条插值方法找到 `x` 和 `y` 的坐标，并将这些坐标存储在 `RIDGE1` 矩阵中。最后，将 `RIDGE1` 显示为图像，并将其命名为“正常信号脊线”。

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