Physiological information monitoring and identification method, characterization information monitoring and identification method, and physiological information monitoring radar

A radar signal processing method for monitoring and identifying characterization information of a plurality of to-be-monitored objects, comprising:

• receiving at least one piece of first radar digital monitoring data corresponding to at least one response device in a plurality of to-be-monitored objects, at least one piece of second radar digital monitoring data corresponding to at least one living body in the plurality of to-be-monitored objects and at least one piece of third radar digital monitoring data corresponding to at least one moving object in the plurality of to-be-monitored objects;
• processing each piece of the first radar digital monitoring data, by performing a Doppler FFT process, as a first phase frequency phase-domain signal;
• processing each piece of the second radar digital monitoring data, by performing the Doppler FFT process, as a second phase frequency phase-domain signal;
• processing each piece of the third radar digital monitoring data, by performing the Doppler FFT process, as a third phase frequency phase-domain signal;
• respectively obtaining a response characteristic from the first phase frequency-domain signal, the second phase frequency-domain signal and the third phase frequency-domain signal;
• processing each piece of the first radar digital monitoring data, each piece of the second radar digital monitoring data and each piece of the third radar digital monitoring data, by performing a range FFT process and a direction-finding process, to obtain range information corresponding to each of the plurality of to-be-monitored objects;
• distinguishing the response characteristic of the first phase frequency-domain signal as an identification and distinguishing the response characteristics of the second phase frequency-domain signal and the third phase frequency-domain signal as characterization information;
• and
• labelling each piece of characterization information according to the range information and identification information, wherein the identification information is a time-varying frequency.

A physiological information monitoring radar, comprising:

• a transceiver configured to transmit a plurality of incident radar signals to a plurality of to-be-monitored objects of a field and receive a first reflected radar signal corresponding to each of the response devices of the field and a second reflected radar signal corresponding to each of the living bodies of the field, wherein the to-be-monitored objects includes at least one response device and at least one living body;
• and
• a signal processing module configured to process each of the first reflected radar signals, by performing a Doppler FFT process, as a first phase frequency-domain signal, process each of the second reflected radar signals, by performing the Doppler FFT process, as a second phase frequency-domain signal, respectively obtain a response characteristic from the first phase frequency-domain signal and the second phase frequency-domain signal, process each of the first reflected radar signals and each of the second reflected radar signals, by performing a range FFT process and a direction-finding process, to obtain range information corresponding to each of the plurality of to-be-monitored objects, distinguish the response characteristic of the first phase frequency-domain signal as an identification, distinguish the response characteristic of the second phase frequency-domain signal as a physiological information, and label each piece of physiological information according to the range information and identification information, wherein the identification information is a time-varying frequency.