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Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 47, Iss. 2 — Jan. 10, 2008
  • pp: 296–311

Acquisition algorithm for direct-detection ladars with Geiger-mode avalanche photodiodes

Adam B. Milstein, Leaf A. Jiang, Jane X. Luu, Eric L. Hines, and Kenneth I. Schultz  »View Author Affiliations

Applied Optics, Vol. 47, Issue 2, pp. 296-311 (2008)

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An optimal algorithm for detecting a target using a ladar system employing Geiger-mode avalanche photodiodes (GAPDs) is presented. The algorithm applies to any scenario where a ranging direct detection ladar is used to determine the presence of a target against a sky background within a specified range window. A complete statistical model of the detectionprocess for GAPDs is presented, including GAPDs that are inactive for a fixed period of time each time they fire. The model is used to develop a constant false alarm rate detection algorithm that minimizes acquisition time. Numerical performance predictions, simulation results, and experimental results are presented.

© 2008 Optical Society of America

OCIS Codes
(040.3780) Detectors : Low light level
(280.3400) Remote sensing and sensors : Laser range finder
(280.3640) Remote sensing and sensors : Lidar
(040.1345) Detectors : Avalanche photodiodes (APDs)

ToC Category:
Remote Sensing and Sensors

Original Manuscript: September 21, 2007
Revised Manuscript: November 26, 2007
Manuscript Accepted: November 28, 2007
Published: January 9, 2008

Adam B. Milstein, Leaf A. Jiang, Jane X. Luu, Eric L. Hines, and Kenneth I. Schultz, "Acquisition algorithm for direct-detection ladars with Geiger-mode avalanche photodiodes," Appl. Opt. 47, 296-311 (2008)

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