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