Equation Implementation in Matlab

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Jes 2014-10-9

回答： Star Strider 2014-10-9

I have a vector X of 200*1 w=[1 2 3 4 5]

up(n)=summation(k=1to5) w* X(n-k)

Explanation for n=1, X should take previous five samples, X(200),X(199)...X(196) and iiy for n=2 and goes on

José-Luis 2014-10-9

Please try to read your own question from the perspective of someone who has no idea what you are doing.

Star Strider 2014-10-9

I am not certain if a matrix-vector product or convolution/filter is what you are doing.

Does this do what you want:

X = randi(50, 200, 1);
w=[1 2 3 4 5];
Xr = reshape(X, [], 5);
up = Xr*w';

It creates ‘up’ as a (40x1) vector.

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