Title :
An Optical Radar for Surveying
Author_Institution :
Physicist with the Armour Research Foundation, Illinois Institute of Technology, Chicago, Ill.
Abstract :
An instrument is described which uses radar techniques to make a survey of terrain. Distances are determined by measuring the transit time of pulses of light traveling between the instrument and a retrodirective reflector placed at the point whose relative position is to be found. Angles are measured by adjusting the position of the optical transmitter to obtain a maximum pip on a cathode-ray tube.
Keywords :
Instruments; Laser radar; Optical amplifiers; Optical pulses; Optical transmitters; Position measurement; Pulse amplifiers; Pulse measurements; Stimulated emission; Time measurement;
Journal_Title :
American Institute of Electrical Engineers, Transactions of the
DOI :
10.1109/T-AIEE.1948.5059727
