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Proceedings Paper

Chirped AM ladar for anti-ship missile tracking and force protection 3D imaging: update
Author(s): Brian C. Redman; Barry Stann; William Lawler; Mark Giza; John Dammann; William Ruff; William Potter; Ronald G. Driggers; Jose Garcia; John Wilson; Keith Krapels
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Paper Abstract

Shipboard infrared search and track (IRST) systems can detect sea-skimming anti-ship missiles at long ranges. Since IRST systems cannot measure range and line-of-sight velocity, they have difficulty distinguishing missiles from slowly moving false targets and clutter. In a joint Army-Navy program, the Army Research Laboratory (ARL) is developing a chirped amplitude modulation ladar to provide range and velocity measurements for tracking of targets handed over to it by the distributed aperture system IRST (DAS-IRST) under development at the Naval Research Laboratory (NRL) under Office of Naval Research (ONR) sponsorship. By using an array receiver based on Intevac Inc.'s Electron Bombarded Active Pixel Sensor (EBAPS) operating near 1.5 μm wavelength, ARL's ladar also provides 3D imagery of potential threats in support of the force protection mission. In Phase I, ARL designed and built a breadboard ladar system for proof-of-principle static platform field tests. In Phase II, ARL is improving the ladar system to process and display 3D imagery and range-Doppler plots in near real-time, to re-register frames in near real-time to compensate for platform and target lateral motions during data acquisition, and to operate with better quality EBAPS tubes with higher quantum efficiency and better response spatial uniformity. The chirped AM ladar theory, breadboard design, performance model results, and initial breadboard preliminary test results were presented last year at this conference. This paper presents the results of tests at the Navy's Chesapeake Bay Detachment facility. The improvements to the ladar breadboard since last year are also presented.

Paper Details

Date Published: 19 May 2006
PDF: 15 pages
Proc. SPIE 6214, Laser Radar Technology and Applications XI, 62140O (19 May 2006); doi: 10.1117/12.666961
Show Author Affiliations
Brian C. Redman, Army Research Lab. (United States)
Barry Stann, Army Research Lab. (United States)
William Lawler, Army Research Lab. (United States)
Mark Giza, Army Research Lab. (United States)
John Dammann, Army Research Lab. (United States)
William Ruff, Army Research Lab. (United States)
William Potter, Army Research Lab. (United States)
Ronald G. Driggers, Office of Naval Research/Naval Research Lab. Science & Technology (United States)
Jose Garcia, Office of Naval Research/Naval Research Lab. Science & Technology (United States)
John Wilson, Office of Naval Research/Naval Research Lab. Science & Technology (United States)
Keith Krapels, Office of Naval Research (United States)

Published in SPIE Proceedings Vol. 6214:
Laser Radar Technology and Applications XI
Gary W. Kamerman; Monte D. Turner, Editor(s)

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