Real time imaging expandable passive millimeter wave system for detecting concealed objects

A real time imaging expandable passive millimeter wave system for detecting concealed objects which is characterized by being comprised of;

• human body detector sensors (10A, 10B) which detect human bodies passing a scanner (20);
• passive millimeter wave image sensor modules (12) which are arranged horizontally or vertically on the scanner (20) to acquire millimeter wave images radiated from human body in vertical axes at certain time intervals;
• an amplifier (13) which amplifies the DC voltage from said passive millimeter image sensor modules (12) to a certain level;
• an analog-digital (A/D) converter (14) which transforms the DC voltage amplified with said amplifier (13) to digital signals;
• a mobility detector (15) which detect the movement of human body passing predetermined position to acquire millimeter wave signals from divided parts of human body;
• a digital signal processor (16) which interlinks and reconstructs signals with the time and position of the object obtained from said mobility detector (15) and the signal obtained by said passive millimeter image sensor modules (12), and;
• a monitor which displays the signals processed with said digital signal processor (16).