4th Experiment
Linear Convolution was performed using Overlap Add method for which the length of the ip signal x(n) was 12 and h(n) was 3. The program was done by breaking the ip signal in 2 parts of length 6 each and the length of the decomposed signal was 8. So two outputs were generated and the final output was stored in y(n) of length 14. Overlap Save Method involved the same procedure and in the earlier case x1(n) and x2(n) but in OSM x1(n) s2(n) and x3(n) were generated. It was noted that OAM and OSM can be used to filter long ip sequences using FFT.
OAM and OSM methods are used wherever the whole input signal has not been given but computations of the already stored signals are to be done.
ReplyDeleteThanks for mentioning that.
DeleteI knew that OAM and OSM are only used when length of the signal is long.
Overlap Add method is used in FIR filter for a long signal.
ReplyDelete