4 October 2011 Field programmable gate array processing of eye-safe all-fiber coherent wind Doppler lidar return signals
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Abstract
A field deployable all-fiber eye-safe Coherent Doppler LIDAR is being developed at the Optical Remote Sensing Lab at the City College of New York (CCNY) and is designed to monitor wind fields autonomously and continuously in urban settings. Data acquisition is accomplished by sampling lidar return signals at 400 MHz and performing onboard processing using field programmable gate arrays (FPGAs). The FPGA is programmed to accumulate signal information that is used to calculate the power spectrum of the atmospherically back scattered signal. The advantage of using FPGA is that signal processing will be performed at the hardware level, reducing the load on the host computer and allowing for 100% return signal processing. An experimental setup measured wind speeds at ranges of up to 3 km.
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S. Abdelazim, S. Abdelazim, D. Santoro, D. Santoro, M. Arend, M. Arend, F. Moshary, F. Moshary, S. Ahmed, S. Ahmed, } "Field programmable gate array processing of eye-safe all-fiber coherent wind Doppler lidar return signals", Proc. SPIE 8182, Lidar Technologies, Techniques, and Measurements for Atmospheric Remote Sensing VII, 81820K (4 October 2011); doi: 10.1117/12.898414; https://doi.org/10.1117/12.898414
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