LAW Laser Rangefinder Design Study and Demonstration Model.

摘要

Theoretical considerations,undertaken at the commencement of this study,have indicated the feasibility of a rangefinding system which utilizes a relatively low power GaAs laser and yields ranging capability in excess of 500meters. The initial aspects of the study were concerned with signal processing techniques which would afford this ranging capability while utilizing optical and electric components commensurate with a small,portable system. The signal processing method chosen as the result of this study involves received pulse integration yielding a signal-to-noise ratio enhancement proportional to the square root of the number of pulses integrated. The manner in which various optical and electronic parameters affect the ranging capability of the system have also been determined. This has enabled trade-offs among these parameters to be realized. A specific set of these parameters was used as the basis of a demonstration rangefinder. The demonstration rangefinder was designed,fabricated and field tested.