Sleep position monitoring method and device, radar and storage medium

The invention provides a sleep position monitoring method and device, a radar and a storage medium, and the method comprises the steps: carrying out the FFT calculation of an echo signal, and obtaining a distance-angle two-dimensional matrix; subtracting each data point in the distance-angle two-dimensional matrix of the current frame from a corresponding data point in the distance-angle two-dimensional matrix of the previous frame to obtain a cancellation matrix of the current frame; recording the serial number of the angle unit where the cancellation data point with the maximum amplitude in the cancellation matrix is located as a target serial number, and calculating the angle of the human body on the target bed body relative to the radar according to the target serial number; and calculating the relative position of the human body on the target bed body according to the angle of the human body relative to the radar. According to the method, the static target in the echo signal can be eliminated, and sleep