Passive error compensating device for optical alignment
Passive fiber optic sensor with omnidirectional acoustic sensor
Passive fiber optic sonar system
Passive homodyne demodulator and sensor system
Passive measurement of terrain parameters
Passive optical position measurement system
Passive optical range simulator device
Passive optical range simulator device
Passive optical rangefinder
Passive optical rangefinder-sextant
Passive optical rangefinder/sextant having search capability
Passive optical sensor using carbon nanotubes
Passive optical velocity measurement device and method
Passive optical wind profilometer
Passive quadrature phase detection system for coherent fiber opt
Passive radio altimeter
Passive range estimation using image size measurements
Passive range finding apparatus utilizing television sensors
Passive rangefinder
Passive ranging system especially for use with an electro-optica