Accession Number : ADA300185

Title :   Computer Assisted Laser Range Finding and Detection Systems.

Corporate Author : NATIONAL AIR INTELLIGENCE CENTER WRIGHT-PATTERSON AFB OH

PDF Url : ADA300185

Report Date : 01 AUG 1995

Pagination or Media Count : 13

Abstract : Up to the present time, the majority of laser radars which have been reported were very expensive, had large volumes, and were very complicated in terms of utilization and maintenance. As far as this type of low cost laser range finding and detection system reported in this paper is concerned, use is made of a type of semiconductor laser diode emission device and a small model computer to do control. With regard to making use of semiconductor laser diodes to replace Nd: YAG lasers, the results were to improve optical emission efficiencies, electronic control compatibility, and reduce system dimensions. One type of high sensitivity PIN diode receiver is capable of receiving radar pulses reflected back from targets, and, in conjunction with that, directly supplying digital output. Electronic methods are used to measure laser pulse travel time of flight. In conjunction with that, an IBM-AT compatible minicomputer is used, and it is possible to realize the needed calculations as well as displaying target distance, speed, and position. Systems are capable of tracking horizon range targets more than 5Om away from emitters.

Descriptors :   *RADAR, *LASER APPLICATIONS, *RANGE FINDING, *LASER TRACKING, YAG LASERS, OUTPUT, CONTROL, DIGITAL SYSTEMS, ELECTRONICS, EMISSION, OPTICAL PROPERTIES, DETECTORS, MODELS, COMPUTERS, ELECTRONIC EQUIPMENT, EFFICIENCY, COMPATIBILITY, SEMICONDUCTOR LASERS, SEMICONDUCTOR DIODES, REFLECTION, TARGETS, LASERS, COMPUTER APPLICATIONS, TRANSLATIONS, RANGE(DISTANCE), UTILIZATION, RADAR PULSES, CHINA, MINICOMPUTERS, HORIZON.

Subject Categories : Lasers and Masers
      Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE