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Proceedings Paper

Laser ranging and mapping with a photon-counting detector
Author(s): William C. Priedhorsky; Randall C. Smith; Cheng Ho
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Paper Abstract

We propose a new technique for remote sensing: photon-counting laser mapping. Micro- channel plate detectors with crossed delay-line (MCP/CDL) readout combine high position accuracy and sub-nanosecond photon timing, at event rates of 106 detected photons per second and more. A mapping system would combine an MCP/CDL detector with a fast pulse, high repetition rate laser illuminator. The system would map solid targets with exceptional range and cross-range resolution. The resulting images would be intrinsically three- dimensional, without resorting to multiple viewing angles, so that objects of identical albedo could be discriminated. For a detector time resolution and pulse width of order 1010 seconds, the in-range resolution would be a few centimeters, allowing the discrimination of surfaces by their textures. Images could be taken at night, at illumination levels up to full moonlight, from ground, airborne, or space platforms. We discuss signal-to-noise as a function of laser flux and background level.

Paper Details

Date Published: 1 September 1995
PDF: 8 pages
Proc. SPIE 2555, Airborne Reconnaissance XIX, (1 September 1995); doi: 10.1117/12.218619
Show Author Affiliations
William C. Priedhorsky, Los Alamos National Lab. (United States)
Randall C. Smith, Los Alamos National Lab. (United States)
Cheng Ho, Los Alamos National Lab. (United States)

Published in SPIE Proceedings Vol. 2555:
Airborne Reconnaissance XIX
Wallace G. Fishell; Arthur A. Andraitis; Paul A. Henkel; Alfred C. Crane, Editor(s)

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