How to make a simple moving average filter object?

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Varun Gupta
Varun Gupta 2020-7-22
回答： Abhishek Kumar 2020-12-11
I want to design a simple moving avergae filter object with window size 5 and cutoff frequency 0.3 (scaled to 1).
using dsp.MovingAverage() doesn't return a filter object.
(I need a filter object to visualize the filter using fvtool)
Please help me with this,
Thanks.

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回答（1 个）

Abhishek Kumar
Abhishek Kumar 2020-12-11
Hi Varun, to learn more about usage of moving average filter you can follow the following links:
Moving average - MATLAB (mathworks.com)
How Is a Moving Average Filter Different from an FIR Filter? - MATLAB & Simulink (mathworks.com)
for the purpose of your reference here is a sample example:
movAvg = dsp.MovingAverage(10,'Method','Sliding window');
input = randn(1024,1);
filterOutput = movAvg(input);
fvtool(filterOutput,1)

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