How can I speed up the calculation time for the

Illustration
Cataleya - 2021-01-11T10:36:13+00:00
Question: How can I speed up the calculation time for the

I am using the "rpmtrack" function in the MATLAB R2018a prerelease. When my "x" signal input has ~ 10e5 elements, the "rpmtrack" function takes 15 minutes to run. If my "x" input signal has ~ 10e4 elements, it only takes a couple minutes to run. Is there any way I can decrease the run time of this function when inputting a vector with 10e5 elements? 

Related Questions

  • How do I uninstall and reinstall MathWorks Service Host?
  • MatLab App Design - how to use default value for Edit Field function?
  • What's the difference between imagesc and imshow?
  • Error evaluating parameter 'Value' in simulink
  • Why do I get a connection error when installing or activating MATLAB or other MathWorks products?

    • Expert Answer

    Profile picture of Prashant Kumar Prashant Kumar answered . 2025-11-20

    There are a couple methods of speeding up the computation time of the "rpmTrack" function:
    • Divide the signal into various segments. Then, estimate the rpm over each segment, and concatenate those rpm estimates.
    • Coarsen the frequency resolution to reduce FFT length, and then compensate the ridge estimation accuracy by specifying enough ridge points and penalty values. This can be done using the name-value pairs for this function such as "FrequencyResolution" and "FrequencyPenalty", as pointed out in the function's documentation page.


    Not satisfied with the answer ?? ASK NOW

    Get a Free Consultation or a Sample Assignment Review!

    Upload Assignment Talk to Expert