HYBRID MILIMETER WAVE IMAGE SENSOR WITH DETECT DISTANCE BETWEEN SENSOR AND TARGET USING SINGLE ANTENNA

摘要

PURPOSE: a kind of combined type millimeter wave imaging sensor individual antenna structure can distance detection provide there is simplified structure, by making radiation signal from Millimeter-Wave Source, receive signal reflect from target with individual antenna. ;CONSTITUTION: millimeter-wave signal output unit (40) exports the millimeter-wave signal of linear change. Circulator (80) provide signal provide from millimeter-wave signal output unit to antenna receive the signal that reflect from target in circulator as live image sensor and natural radioactivity signal from object in circulator as passive images sensor. Antenna (81) emit millimeter-wave signal from circulator provide to object and to circulator receive the signal that reflect from target circulator be used as live image sensor reception nature radiated signal from object in circulator as passive images sensor. Switch (82) output receives signal and passive image signal processing unit and opens when Millimeter-Wave Source leaves the output of millimeter-wave signal output unit and receives signal and be supplied to low-converter and work as the millimeter-wave signal output unit of Millimeter-Wave Source, by optionally switching the reception signal. Distributor (43) exports signal FMCW (modulated frequency continuous wave an is led) radar signal, distributes after another activity image signal processing unit and arrives difference signal from down converter output signal 2. ;The 2013 of copyright KIPO submissions;[Reference numerals] (41) modulating signal source; (42) signal source; The distributor of (43,84); (51) amplifier; The detector of (52,61); (53,62) low frequency rate amplifier; (54,63) low frequency bandpass filter; (70) target piece; (80) circulator; (81) antenna; (82) it switchs; (83) to down-conversion mixer; (AA) manual image sensor signal; (BB) fmcw radar signal