Radiant energy detection system
Radiation scanning and detection system
Radiation source position detection method, radiation source...
Reentry vehicle interceptor with IR and variable FOV laser...
Relative azimuth measuring method and apparatus
Relative-angle detection apparatus
Remote control surveying
Remote controlled land surveying assistance device for path resp
Remote controlled, CRT digital display, LLLTV camera-sextant
Remote position sensing apparatus and method
Response ratioing angle of arrival sensor that is responsive to
Retroreflectors
Rotary laser irradiating system
Rotating head optical transmitter for position measurement...
Rotating head optical transmitter for position measurement...