Passive airborne collision warning device and method
Passive aircraft and missile detection device
Passive aircraft monitoring system
Passive channel calibration method based on non-linear...
Passive coherent location system and method
Passive detection apparatus
Passive doppler differential ranging system and method
Passive doppler emitter classification and ranging system utiliz
Passive emitter location system
Passive frequency scanning radiometer
Passive high accuracy geolocation system and method
Passive identification of friend vs. foe apparatus and method
Passive interferometric imaging receiver system
Passive interrogator label system having offset compensation and
Passive interrogator label system with a surface acoustic wave t
Passive means for single site radio location
Passive microwave direction finding with monobit fourier...
Passive microwave near-field tomographic imaging system and meth
Passive monopulse ranging to a non-cooperative emitter and non-e
Passive moving object detection system and method using...