signal processing

8 次查看（过去 30 天）
arun
arun 2012-2-21
how to take a auto correlation of signal?what is the difference between auto correlation and cross correlation? if we take auto correlation of a signal what do we infer from this?please help me,,, thank in advance....

请先登录，再回答此问题。

回答（1 个）

Honglei Chen
Honglei Chen 2012-2-21
You can us xcorr to do both auto and cross correlation, e.g.,
xcorr(x,x)
xcorr(x,y)
doc xcorr
Auto correlation is the correlation between one signal and itself while cross correlation is the correlation between two different signals. The autocorrelation can tell you, for example, whether there is periodic component in the signal.

类别

在 Help Center 和 File Exchange 中查找有关 Correlation and Convolution 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by