Technique Used In Laser Rangefinder Radiometric Tolerance Analysis

T. P. Fjeldsted; W. P. Hennessy

doi:10.1117/12.956040

4 May 1978 Technique Used In Laser Rangefinder Radiometric Tolerance Analysis

T. P. Fjeldsted, W. P. Hennessy

Proceedings Volume 0131, Practical Infrared Optics; (1978) https://doi.org/10.1117/12.956040
Event: 1978 Los Angeles Technical Symposium, 1978, Los Angeles, United States

Abstract

A technique is described for use in determining the effect of opto-mechanical tolerances on the radiometric performance of a typical laser rangefinder system consisting of a laser, transmitter, and receiver. This technique takes into account centered tolerances, laser performance parameters, and the alignment boresight to the subsystems. These subsystems are perturbed within selected tolerance limits by means of the Monte Carlo method, and the individual perturbed subsystems form a simulated system. The simulated system is then analyzed to determine its radiometric efficiency. A histogram based on the number of systems simulated is prepared that illustrates the probability of radiometric efficiency. This distribution varies with the tolerances selected, laser performance parameters, boresight errors, receiver FOV, etc. The technique described is an excellent engineering tool for analyzing and specifying subsystem performance parameters.

Citation Download Citation

T. P. Fjeldsted and W. P. Hennessy "Technique Used In Laser Rangefinder Radiometric Tolerance Analysis", Proc. SPIE 0131, Practical Infrared Optics, (4 May 1978); https://doi.org/10.1117/12.956040

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