Millimeter wave radar human body sensing method and system applied to community grid patrol

The invention provides a millimeter wave radar human body sensing method and system applied to community grid patrol, and relates to the technical field of radars, and the method comprises the steps: obtaining the original data collected by a sensor, determining the initial phase information of an echo signal according to the original data, and combining with a preset phase unwrapping algorithm to obtain the initial phase information of the echo signal; whether phase jump exists in the initial phase information or not is judged, if yes, jump repair is carried out, first phase information is determined, and if not, the initial phase information serves as the first phase information; according to the first phase information, in combination with a direction detection algorithm, determining a human body movement direction and a facing angle, recording as human body movement information, according to the human body movement information, defining a signal processing algorithm, and according to the signal processing