Digital Bandpass Filter With Phase

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Hassan Abbasi 2021-6-10

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https://ww2.mathworks.cn/matlabcentral/answers/852535-digital-bandpass-filter-with-phase

回答： Arthi Sathyamurthi 2021-12-30

Hi, I am having trouble creating a digital bandpass filter between the frequencies of 2-5Hz in MATLAB. I am trying to get the code to isolate the frequency in that range, and estimate the phase of dominant frequency. If you could help me design this filter, or share a similar code, that would help a alot.

Thank you!!

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Mathieu NOE 2021-6-10

hello

what have you done so far ? read the doc if you need assistance to start this work

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Answer 1

Arthi Sathyamurthi 2021-12-30

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Hello,

You can use the bandpass function to filter the input signal with a passband frequency range with normalized units of π rad/sample. Further to estimate the phase you can use the angle function. You can find examples in the link of the mentioned functions to help you get started.