Through-the-Wall Radar Life Detection and Monitoring

Technology that can be used to unobtrusively detect and monitor the presence of human subjects from a distance and through barriers can be a powerful tool for law enforcement, military, and health monitoring applications. To this end, ultra-wide band radar has shown promise for real-time subject imaging, and compact Doppler radar solutions have demonstrated potential for providing non-invasive detection and monitoring of cardiopulmonary activity for multiple subjects. These technologies work through walls and other obstructions, and can even leverage the presence of ambient radio signals to provide a covert means to detect, isolate, and physiologically monitor multiple human subjects from a remote position. Practical applications ranging from counter-terrorism to health monitoring require systems that are accurate, affordable, and easy to use. Current research efforts addressing these challenges through radio, signal processing, and sensor networking will be presented.