Frequency determination method and device, storage medium, computer equipment and program product

The invention discloses a frequency determination method and device, a storage medium, computer equipment and a program product. The method comprises the steps that an original signal is obtained and filtered, a filtered signal is obtained, and the filtered signal contains signal components of vital signs; performing fast Fourier transform on the filtered signal to obtain a transform result signal; performing maximum possible sign peak value search in the transformation result signal to obtain a first maximum possible peak value and a frequency domain frequency corresponding to the first maximum possible peak value; filtering the original signal to obtain a time domain vital sign waveform; performing time-domain waveform wave crest detection on the time-domain vital sign waveform, and obtaining a time-domain frequency in cooperation with the fragment duration, the signal sampling rate and the number of wave crests; and determining a target frequency of the vital signs in the original signal according to the f