The Harmonic Frequencies Estimation

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freqency harmonics.JPG
Hello Researchers,
I have data set of drone flying operation, i have localized sound sources that have drone sound and noises.
I want to detect drone because most of frequecny components are consisting of drone, by estimating harmonic frequencies i can make guess for drone sound.
Fs = 32000. here file of data set is attached please help me to do this step. Thanks in advance.

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