给我一个matlab ICEEMDAN函数代码
时间: 2023-08-11 09:06:24 浏览: 224
以下是一个简单的 MATLAB ICEEMDAN 函数代码示例:
```matlab
function [imf, residual] = iceemd(signal, stoppingCriterion)
% signal: 输入信号
% stoppingCriterion: 停止条件,通常为0.05
% 预设参数
Nstd = 0.3;
N = 300;
M = 5;
epsilon = 0.05;
imf = [];
residual = signal;
while (length(residual) > 1) && (stoppingCriterion < std(residual))
h = residual;
SD = 1;
while (SD > Nstd)
d = h;
for m = 1:M
D = d;
for i = 1:N
% 生成随机序列
randn('state', sum(100*clock));
h = h + epsilon*randn(size(h));
% 执行 EMD
[H1, H2] = emd(d);
d = D - H1;
end
end
SD = std(d)/mean(d);
h = d;
end
imf = [imf; h];
residual = residual - h;
end
imf = [imf; residual];
end
```
该函数实现了 ICEEMDAN(Intrinsic Mode Function-Based Ensemble Empirical Mode Decomposition with Adaptive Noise)算法。它接受一个输入信号和一个停止标准,然后返回一组固有模式函数(IMF)和一个剩余信号。