How to eliminate noise from a signal by averaging out n samples, where n is a value provided by means of constant block using simulink?

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sai kamal sreeja veepuri 2017-11-14

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https://ww2.mathworks.cn/matlabcentral/answers/366997-how-to-eliminate-noise-from-a-signal-by-averaging-out-n-samples-where-n-is-a-value-provided-by-mean

I am trying to measure duty cycle of a motor. Seems like signal has noise and I can't measure the duty cycle correctly. I want to consider every n samples and sum them up and divide it by n in order to calculate the average. This has to be done using basic simulink blocks since I don't have license for dsp tool box.