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Proceedings Paper

Large format geiger-mode avalanche photodiode LADAR camera
Author(s): Ping Yuan; Rengarajan Sudharsanan; Xiaogang Bai; Eduardo Labios; Bryan Morris; John P. Nicholson; Gary M. Stuart; Harrison Danny
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Paper Abstract

Recently Spectrolab has successfully demonstrated a compact 32x32 Laser Detection and Range (LADAR) camera with single photo-level sensitivity with small size, weight, and power (SWAP) budget for threedimensional (3D) topographic imaging at 1064 nm on various platforms. With 20-kHz frame rate and 500- ps timing uncertainty, this LADAR system provides coverage down to inch-level fidelity and allows for effective wide-area terrain mapping. At a 10 mph forward speed and 1000 feet above ground level (AGL), it covers 0.5 square-mile per hour with a resolution of 25 in2/pixel after data averaging. In order to increase the forward speed to fit for more platforms and survey a large area more effectively, Spectrolab is developing 32x128 Geiger-mode LADAR camera with 43 frame rate. With the increase in both frame rate and array size, the data collection rate is improved by 10 times. With a programmable bin size from 0.3 ps to 0.5 ns and 14-bit timing dynamic range, LADAR developers will have more freedom in system integration for various applications. Most of the special features of Spectrolab 32x32 LADAR camera, such as non-uniform bias correction, variable range gate width, windowing for smaller arrays, and short pixel protection, are implemented in this camera.

Paper Details

Date Published: 23 May 2013
PDF: 10 pages
Proc. SPIE 8731, Laser Radar Technology and Applications XVIII, 87310X (23 May 2013); doi: 10.1117/12.2016446
Show Author Affiliations
Ping Yuan, Spectrolab Inc. (United States)
Rengarajan Sudharsanan, Spectrolab Inc. (United States)
Xiaogang Bai, Spectrolab Inc. (United States)
Eduardo Labios, Spectrolab Inc. (United States)
Bryan Morris, Boeing DES (United States)
John P. Nicholson, Boeing DES (United States)
Gary M. Stuart, Boeing DES (United States)
Harrison Danny , Boeing DES (United States)

Published in SPIE Proceedings Vol. 8731:
Laser Radar Technology and Applications XVIII
Monte D. Turner; Gary W. Kamerman, Editor(s)

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