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Coherent laser radar signal processing technology wind research

Author: LiDongMei
Tutor: GuoZhen；ZhengYongChao
School: Xi'an University of Electronic Science and Technology
Course: Electronics and Communication Engineering
Keywords: Coherent Lidar Wind measurement Doppler High speed and precision FFT
CLC: TN958.98
Type: Master's thesis
Year: 2009
Downloads: 231
Quote: 0
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Abstract


Of atmospheric wind speed and accurate measurement of the field distribution has important military and civil values ??. This paper describes the coherent laser radar wind working principle of the system index system is analyzed and demonstrated , given the current coherent laser radar systems on better technical solutions and technical approaches . Secondly, the proposed high-speed sampling based on 14 400MHz coherent laser radar real-time Doppler anemometer signal processing technology . Introduced the high-speed high-precision ADC (ADC) designed the theoretical basis of the proposed system hardware and software design and architecture, including wind farms containing information on the signal FFT, non-coherent accumulation, modulo a large selection and for each part of the design have done a detailed discussion of the design issues that need attention also given instructions. Finally, on this basis , developed a coherent laser Doppler anemometer signal processing device , and conducted related experiments . Experimental results demonstrate the Doppler signal processing device design feasibility and adaptability.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Radar > Radar: institutional sub- > Optical positioning radar,laser radar
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