Convert step to continuous signal (live data from sensor)

2017 11 27
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更新时间：2017 11 28
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Hi, I am getting the discrete sensor data from Raspberry Pi which is connected in Simulink. I would like to convert the stepped signal to continuous or smoothed signal in order to further processing. I would like to convert as pointed in RED color in the attached picture. </matlabcentral/answers/uploaded_files/96301/step.PNG> Thank you.

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Birdman
Birdman 2017-11-27

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You may pass it from a second order continuous filter.
Gs=tf([5000],[1 150 50*100]);%filter
step(Gs);set(gca,'XLim',[0 1])
You will see that the signal rises in a reasonable time and it is smoothed. Use the output of the step function by writing
[y,t]=step(Gs);

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Is it possible to convert the step signal directly from Simulink? I am getting the signal from Temperature sensor through Raspberry Pi which is connected in external mode. I have used another function to read the temperature data for 1 wire communication. When I tried this code in temperature function to filter, there shows one error that 'tf' function does not support code generation. Is there any other method which supports code generation? Thank you.
Birdman
Birdman 2017-11-28
Yes of course. See the attached model.
It worked for me. However, I have changed the parameter values to get a reasonable response. I need to modify again to get accurate response. Thanks a lot.
Birdman
Birdman 2017-11-28
Yes of course, i was just trying to get you to the point. You are welcome.

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