This experiment involved all the topic we had studied in Sem 5 Signals and Systems
They were done as follows:
1. Linear Convolution
L and M values were taken with L=5 and M=4. The output was stored in y(n) and the length of the op signal was calculated in the program as N=LM-1.
2.Circular Convolution
It was implemented using different values of N. Aliasing effect was observed in circular convolution.
Also Linear using circular convolution was done for L=4 and M=3. The length of the op signal was calculated as N=L+M-1.
3. Correlation
Correlation was studied with L=4 and M=3. The length of the op signal was calculated as N=L+M-1.
The output was in the form of palindrome when the signals were same. It can be used to find error in the signal. The op of correlation as both sided.
https://drive.google.com/file/d/0B9zlXLFfOipjem5abGNOTG9KY2s/view?usp=sharing
https://drive.google.com/file/d/0B9zlXLFfOipjTFRjUWFFWVAzVzA/view?usp=sharing
https://drive.google.com/file/d/0B9zlXLFfOipjR0JmN3FkQzBwclk/view?usp=sharing
please mention about the aliasing error
ReplyDeleteAliasing error is an interesting phenomena, i agree with bangera, mention about it.
ReplyDeleteIn circular convolution aliasing takes place where-in the last few values gets aliased with the starting values of the output signal.
ReplyDeleteCorrelation compares two signals while convolution is used to get output of filter.
ReplyDeleteCorrelation compares two signals while convolution is used to get output of filter.
ReplyDelete