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

Authors :
Milstein, Adam
Jiang, Leaf A.
Luu, Jane X.
Hines, Eric L.
Schultz, Kenneth I.
Source :
Applied Optics. Jan 10, 2008, Vol. 47 Issue 2, p296, 16 p.
Publication Year :
2008

Abstract

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 detection process 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. OCIS codes: 040.1345, 280.3400, 040.3780, 280.3640.

Details

Language :
English
ISSN :
1559128X
Volume :
47
Issue :
2
Database :
Gale General OneFile
Journal :
Applied Optics
Publication Type :
Academic Journal
Accession number :
edsgcl.174749552