- Use the Spectrum Scope block to compute the frequency of a signal.
- Use the FFT and Buffer blocks to create a signal frame and analyze its frequency.
How can I determine the frequency of a signal in Simulink?
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MathWorks Support Team
on 27 Jun 2009
Commented: Jan
on 8 Jul 2019
I would like to use a built-in Simulink block to determine the frequency of a signal.
Accepted Answer
MathWorks Support Team
on 7 May 2018
A built-in block that determines the frequency of a signal is not available in the Simulink product.
To work around this issue, you can write a C-MEX S-function that implements a fast Fourier transform (FFT) algorithm. For more information, see "Writing S-Functions" in the Simulink documentation.
Otherwise, use one of the following built-in options provided by the Signal Processing or DSP toolbox products:
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More Answers (1)
AbhimanyuSingh
on 9 Aug 2017
There is no such block which can directly calculate the frequency of block, but we can design a subsystem which can give you the frequency of signal. Please find the snapshot for the same:
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Jan
on 8 Jul 2019
@SUMANT ANAND: It is hard so solve "similar" problems. Please open a new thread and explain your specific problem.
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