Array variable as parameter value in simulink

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Sridhar Balasubramanian
评论： Sridhar Balasubramanian 2022-1-16
Hi,
I have an 1-D array (ex: A) with a size exactly matching that of the total simulation steps. This array can be either stored in model or base workspace.
I need to set a block parameter to A(Index) with its index changing according to the simulation time.
How can I do this?
Thank you for your help.

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Paul
Paul 2022-1-16
Use a Selector block. Choose the 'Index option' as 'Index vector - port'. Then connect A to the U port and feed the Indx1 port with an integer that you develop from the the simulation time.
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Paul
Paul 2022-1-16
If implemented properly, the output of the selector block is A(index). Multiply it with the output of a Clock and then input the product into a Trigonometric Function block.
Another way to get A(index) is to use the 1-D Lookup Table block. Specify 'Flat' as the interpolation method. This approach would probably be easier than using the Selector block.
Sridhar Balasubramanian
Sridhar Balasubramanian 2022-1-16
Thank you.. I used set_param to update A(Index) in my block.

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