LIDAR

Sensitivity comparison of ladar receivers designed to detect glint targets

[+] Author Affiliations
Christopher D. Brewer, Bradley D. Duncan

University of Dayton, Center for Electro-Optics, 300 College Park, Dayton, Ohio?45469-0245 E-mail: Bradley.Duncan@notes.udayton.edu

Edward A. Watson

Air Force Wright Laboratory, EO Sensor Technology Branch, 3109 P Street, Wright Patterson AFB, Ohio?45433-7700

Opt. Eng. 41(7), 1577-1585 (Jul 01, 2002). doi:10.1117/1.1479709
History: Received Apr. 4, 2001; Revised Dec. 19, 2001; Accepted Jan. 11, 2002; Online June 25, 2002
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We present four receiver designs for a ladar system, based on an optical parametric amplifier, that is designed to collect returns from glint targets. After coupling the return energy into periodically poled lithium niobate, the target backscatter is detected with either an infrared camera or a CCD array. Assuming reasonable detector and system characteristics, the sensitivity of each design is then evaluated by setting the receiver SNR detection threshold equal to one and using the minimum transmitted energy as the figure of merit. Through numerical analysis, we show that an upconversion receiver followed by a visible CCD array offers the best trade-off between sensitivity and practical design for airborne ladar applications. © 2002 Society of Photo-Optical Instrumentation Engineers.

© 2002 Society of Photo-Optical Instrumentation Engineers

Topics

LIDAR ; Receivers

Citation

Christopher D. Brewer ; Bradley D. Duncan and Edward A. Watson
"Sensitivity comparison of ladar receivers designed to detect glint targets", Opt. Eng. 41(7), 1577-1585 (Jul 01, 2002). ; http://dx.doi.org/10.1117/1.1479709


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