|Code Listing by sri hari bhupala haribhakta|
This function gives the decimation matrix which after post mulitpling it with the given signal gives the downsampled version of the original signal...
D = decimmtx(x,N)
decimates the given signal by a factor of N.
[D,y] = decimmtx(x,N)
gives D as well as the decimated signal y
The signals presented here can be used in demonstrating how the signal varies when the operation is made on either independent variable or dependent variable. The parameters can be varied to have a feel of the variation.
CONV_MTX Convolution matrix.
If 'x' is a column vector of length 'nx', then conv_mtx(x,nh) gives a toeplitz
matrix 'X' of size (nx+nh-1) times (nh). 'nh' is the length of the column vector
'h' with which 'x' is convolved. Thus...
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