Sleep staging method based on radar, terminal and storage medium

The invention provides a radar-based sleep staging method, a terminal and a storage medium, and the method comprises the steps: obtaining a human body echo signal obtained through the detection of a preset monitoring area by a radar in real time, and calculating a sleep staging index corresponding to each calculation period of a human body in a sleep period based on the human body echo signal; calculating a sleep staging threshold value corresponding to the current calculation period based on the standard deviation of the sleep staging indexes corresponding to a plurality of calculation periods near the current calculation period; and determining a sleep staging result of the current calculation period according to the sleep staging index of the current calculation period and the corresponding sleep staging threshold value. According to the method, the sleep staging threshold value can be adaptively set based on the sleep condition of the user, so that the calculation accuracy of the sleep staging result is i