Modifying discrete filter block simulink

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Adam Keller 2015-5-20

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https://ww2.mathworks.cn/matlabcentral/answers/217794-modifying-discrete-filter-block-simulink

评论： Nobel Mondal 2015-5-20

I am having issues modifying the discrete filter block, I would like to reproduce the same block, except be able to change the sampling rate of the filter with an an input. Is there any way to: a) See the block in code format b) reproduce the discrete filter in block format. Thanks in advance.

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Answer 1

Nobel Mondal 2015-5-20

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编辑：Nobel Mondal 2015-5-20

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Hi Adam,

If you're trying to modify the sample time from the command prompt, this api might be helpful:

>> load_system('myMdl');
>> set_param('myMdl/Discrete Filter', 'SampleTime', '0.1');

To create an identical twin block, this could be used:

>> add_block('myMdl/Old_block_name', 'myMdl/Twin_block_name');

Hope this helps, Nobel.

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Nobel Mondal 2015-5-20

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Some fancy staff :)

Duplicating the block would might overlay them on top of each other. To avoid that:

>> old_pos = get_param('myMdl/Old_block_name', 'Position');
>> add_block('myMdl/Old_block_name', 'myMdl/Twin_block_name');
>> set_param('myMdl/Twin_block_name', 'Position', old_pos + [100 0 100 0]);