Accession Number : ADD008060

Title :   Time Domain Laser Reconnaissance Technique.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Green,Leland D

Report Date : 16 Dec 1980

Pagination or Media Count : 7

Abstract : Method and apparatus for producing imagery of an object having distinct vertical geometry characteristics located at a reference plane remote from a scanning laser. In particular, a laser beam is utilized to scan objects at the reference plane and the optical signal reflected therefrom, corresponding to the reflectivity of the objects and background, is detected. An electrical signal, corresponding to the detected reflectivity signal, is coupled to an RF amplifier, the output of the RF amplifier being applied to an amplitude demodulator. The output of the amplitude demodulator, corresponding to the reflectivity and vertical geometry characteristics of the object at the reference plane, is applied to a recording device to produce the aforementioned imagery. (Author)

Descriptors :   *Patents, *Optical scanning, *Aerial reconnaissance, *Laser beams, Image processing, Contours, Laser modulators, Line scanning, Time domain, Signal processing, Radiofrequency amplifiers, Demodulators

Subject Categories : Military Intelligence
      Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE