中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
相干多普勒测风激光雷达关键技术研究

文献类型:学位论文

作者竹孝鹏
学位类别博士
答辩日期2011
授予单位中国科学院上海光学精密机械研究所
导师陈卫标
关键词多普勒激光雷达,相干探测,风切变
其他题名Studies of Key Techniques of Coherent Doppler Wind Lidar
中文摘要大气风场信息是大气的一项重要参数,在气候气象学研究、数值天气预报,环境监测以及军事航空应用等方面都有很重要的作用。尤其是风切变探测,对提高飞行安全有着重要的意义。多普勒测风激光雷达能够有效地提供高时空分辨率和高精度的风速测量,应用范围非常广泛,包括机场测风、大气湍流探测及跟踪、风切变、骤风探测、飞机尾迹涡流探测等,是目前风场测量中的新技术。相干探测激光雷达具有信噪比高、对背景光不敏感等优点,十分适合于低空近距离风场探测。本文根据多普勒测风激光雷达的技术和相干探测方式的优点,选择了基于相干探测技术的多普勒测风激光雷达方案。文中对相干多普勒测风激光雷达系统进行了理论研究和实验工作,建立了多普勒测风激光雷达原理样机,取得了初步的实验成果。
英文摘要Wind measurement is very important in many fields such as climate, environment and military. In Particular, the measurements of wind shear will increase the safety of aircraft greatly. Due to both high temporal and spatial resolutions, Doppler wind lidar becomes the most attractive wind-sensing instrument. It can be used to detect atmospheric turbulence, wind shear, Blades gust and aircraft wake vortex. Coherent detection wind lidar has merits on high signal to noise ratio comparing to direct detection. And it is not sensitive to background light. The coherent detection wind lidar is very suitable for low level and near field wind measurement. Studies of Doppler wind lidar based on coherent detection technique are paied attentaion in this dissertation according the trend of Doppler lidar and the merits of coherent detection method. Experimental and theoretic works are conducted for the Doppler wind lidar, and the prototype system is constructed.
语种中文
源URL[http://ir.siom.ac.cn/handle/181231/15840]  
专题上海光学精密机械研究所_学位论文
推荐引用方式
GB/T 7714
竹孝鹏. 相干多普勒测风激光雷达关键技术研究[D]. 中国科学院上海光学精密机械研究所. 2011.

入库方式: OAI收割

来源:上海光学精密机械研究所

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