Multiple delays using cross correlation
显示 更早的评论
I want to find multiple delays between two signals using xcorr in matlab. I'm getting the single delay when i use the following code [x,lag]=xcorr(r1,r2); [m,i]=max(abs(x)); delay=lag(i); But the problem is i'm not getting correct output, when there are multiple delays. Can anyone help me to find multiple delays between two signals
2 个评论
Wayne King
2011-12-19
You are using max() so you are getting a single value. When you say multiple delays, are you trying to account for echoes?
Can you say something more specific about your signals.
Sravantej
2012-1-2
回答（1 个）
Honglei Chen
2012-1-3
Once you get the result of xcorr, you can use findpeaks to locate multiple peaks.
[x,lag] = xcorr(r1,r2);
[pks, locs] = findpeaks(x);
delay = lag(locs);
For options in findpeaks, see the doc
doc findpeaks
HTH
类别
在 帮助中心 和 File Exchange 中查找有关 Correlation and Convolution 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
