Some of the MATLAB functions used in signal processing are discussed as follows:

This function is used to decrease the sampling rate of a sequence. The syntax is given as

`a = decimate(h,k)`

It reduces the sampling rate of a given sequence `h` by a factor `k`. The resultant sequence `a` is `k` times shorter in length than the original given sequence `h`.

Plot, the given expression x = cos(4πt) for 0 ≤ t ≤ 2 in steps of 0.03 and illustrate the use of Solution: The MATLAB program is given below: %Program to illustrate the use of decimate function t=0:0.03:2; x=cos(4*pi*t); y=decimate(x,2); ... |

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