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Proceedings Paper

Diode Laser Radar System Analysis And Design For High Precision Ranging
Author(s): Michael de La Chapelle; J. Doyle McClure; Edward J. Vertatschitsch; Raymond G. Beausoleil; James G. Bull; John A. McGarvey
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Paper Abstract

Laser radar (ladar) performance parameters such as range accuracy, estimation time and target range are analyzed as a function of the component parameters that comprise the system. Design tradeoffs and performance comparisons are evaluated for two popular ladar system designs: intensity modulated(IM)/direct detection(DD) and frequency modulated(FM)/coherent detection(CD). The comparison includes practical discussions of modulation, signal processing and component performance. The analysis begins by presenting accurate signal to noise ratio (SNR) equations that include the often omitted phase noise and intensity noise terms. Next, the SNR is related to the range accuracy, estimation time and modulation frequency or bandwidth via the Cramer-Rao lower bound (CRLB) for optimal processing. The results of the analysis are used to identify critical component design and performance issues for precision IM/DD and FM/CD ladar systems.

Paper Details

Date Published: 22 June 1989
PDF: 10 pages
Proc. SPIE 1043, Laser Diode Technology and Applications, (22 June 1989); doi: 10.1117/12.976376
Show Author Affiliations
Michael de La Chapelle, Boeing Electronics Company (United States)
J. Doyle McClure, Boeing Electronics Company (United States)
Edward J. Vertatschitsch, Boeing Electronics Company (United States)
Raymond G. Beausoleil, Boeing Electronics Company (United States)
James G. Bull, Boeing Electronics Company (United States)
John A. McGarvey, Boeing Electronics Company (United States)

Published in SPIE Proceedings Vol. 1043:
Laser Diode Technology and Applications
Luis Figueroa, Editor(s)

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