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Proceedings Paper

Characterization of high resolution range and Doppler LADAR
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Paper Abstract

Compared to microwave radar systems, chaotic ladar has the potential for providing a range resolution well into the mm range. The purpose of this project is to determine the signal processing schemes required to extract range and Doppler information from a chaotic signal scattered by environmental targets. Specifically, a ladar would be driven into the coherence collapse through an external optical resonator, thus generating a chaotic electromagnetic field with a wide rms bandwidth of several GHz. The reflected field would be processed though optical correlation to extract range and Doppler information. Simulations show that the power spectral density properties of the field are dependent on the Lyapunov exponent of the chaotic field, which be exploited to obtain optimum range resolution. A complete statistical analysis of the wideband ambiguity function of the field reveals that the signal has better performance than noise-like signals generated via electro-optic amplitude modulation, thus allowing for high resolution imaging of terrains with pseudo random reflectivity variations.

Paper Details

Date Published: 11 August 2009
PDF: 10 pages
Proc. SPIE 7460, Lidar Remote Sensing for Environmental Monitoring X, 74600A (11 August 2009); doi: 10.1117/12.824712
Show Author Affiliations
Benjamin C. Flores, The Univ. of Texas at El Paso (United States)
Berenice Verdin, The Univ. of Texas at El Paso (United States)

Published in SPIE Proceedings Vol. 7460:
Lidar Remote Sensing for Environmental Monitoring X
Upendra N. Singh, Editor(s)

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