Signal processing method and apparatus

Abstract

The present disclosure provides a signal processing method and apparatus. The method includes: extracting the chest cavity movement signal from the radar echoes, which are the electromagnetic signals reflected from the target; extracting the respiratory signal and heartbeat signal by performing the bandpass filters on the chest cavity movement signal, wherein the respiratory signal corresponds to a respiratory bandpass frequency of the filter, and the heartbeat signal corresponds to a heartbeat bandpass frequency of the filter; performing joint time-frequency analysis on the respiratory signal to obtain a respiratory frequency, and performing joint time-frequency analysis and statistical analysis on the heartbeat signal to obtain the heartbeat frequency corresponding to the heartbeat signal.

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