Is there a way to develop simulink model for Savitzky-golay filter?

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SHALINI R
SHALINI R 2022-12-8
评论： Paul 2022-12-8
I wanna filter the values while the simulation is running.While the sgolayfilt code can be used for the entire graph(i.e after the graph has been plot).so is there a way to develop simulink model for savitzky golay filter?
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SHALINI R
SHALINI R 2022-12-8
I am doing a project in simulink .The ouput is motor speed in rad/s.I have converted the radian /s to m/s to obtain vehicle velocity.Inorder to obtain acceleration plot,I have used derivative block.The acceleration ouput is not continuous as the derivative is done for 1s.So I thought by using the sgolay filter I coud obtain a continuous output.(caz they have used sgolay differentiation filter in drive cycle source block to obtain output acceleration.)
Paul
Paul 2022-12-8
Are you using the Discrete Derivative block with sample time of 1 s? If not, can you provide a link to the derivative block you're using and explain what "derivative is done for 1 s" means?
Is the velocity to be differentiated continuous? Can you make any assumptions about limitations on its frequency content, i.e., due to the bandwidth of the motor and/or its servo control loop (if it has one)?
Also, are you sure you can't get the motor acceleration directly? Usually, motor models integrate angular acceleration to angular velocity.

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