Hi! I need some help with the following problem, which asks me to create a function that takes a signal vector as input and computes the five-sample weighted moving average of the signal.

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Esther Kis 2016-3-28

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https://ww2.mathworks.cn/matlabcentral/answers/275848-hi-i-need-some-help-with-the-following-problem-which-asks-me-to-create-a-function-that-takes-a-sig

评论： Geoff Hayes 2016-3-28

Here is an example: If your signal file consists of a vector y = [0.8, 0.9, 0.7, 0.6, 0.3, 0.4] We can solve the smoothing problem by making use of a matrix: We first construct a matrix where each row is a shifted and scaled version of the signal, which means that in the first row, y is shifted left twice; in the second row y is shifted left once and multiplied by two; in thethird row y is multiplied by three; etc. Summing each column and dividing by 9 yields the final result: y = [0.54444, 0.7, 0.68889, 0.56667, 0.4, 0.26667]

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Geoff Hayes 2016-3-28

Esther - what have you tried so far? The above description seems like a homework question, so please document what you have attempted and describe any errors or problems that you are observing.

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