Method and device for detecting starting point of signal, storage medium and electronic device

Abstract

The present disclosure discloses a method and device for detecting a starting point of a signal, a storage medium and an electronic device. Therein, the method includes: receiving a sensing signal collected by a sensor; after segmenting the sensing signal into at least one segment signal, calculating a segment energy value of each segment signal, and acquiring a signal band containing a starting point of a signal of a pulse signal based on each segment energy value; based on a measured energy value at each sampling point in the signal band, calculating an instantaneous energy value at each sampling point in the signal band by using a sliding window method; acquiring a first energy ratio between a first sampling point and a second sampling point in the signal band; and if the first energy ratio is greater than an initial-ratio threshold value, determining a sampling time corresponding to the first sampling point as the starting point of the signal. According to the present disclosure, the instantaneous energy value is calculated by using the sliding window method, and a signal starting point where an energy value is sharply increased is found by means of an energy ratio, thereby the accuracy of detecting starting point of the signal is improved, and thus the accuracy of signal feature analysis is improved.