科学研究 科学研究

激光雷达大气遥测研究中心    


     西安理工大学激光雷达遥测研究实验平台总投资近200万元人民币,2005年9月开始筹建,于2006年3月建成并开始正式运行。研究中心拥有的主要设备有:美国Continuum公司单频并可多波长输出的大功率脉冲Nd:YAG激光器,日本Takahashi公司高反射率激光大气回波信号接收望远镜,美国CVI公司高分辨率分光检测系统,美国Tektronix公司的高速数据采集系统及其他开展激光雷达研究所需的辅助设备。已具备开展对气象参数(大气温度、湿度、风速、风向)及大气光学特性(云及气溶胶等颗粒状大气污染物质的消光系数、散射系数、光学厚度以及大气边界层高度、大气透过率等)进行高精度、高时空分辨率的激光遥感探测技术研究的能力。
    

      研究中心的负责人华灯鑫教授长期在国外从事激光雷达大气遥感测量的基础理论研究及产品研发工作,尤其在低层大气的温度、湿度及气溶胶的高精度、全天候实时遥感检测领域有较深的造诣。负责研发的首台多功能气象激光雷达系统,受到日本主要报纸《日本经济新闻》、《日刊工业新闻》及东京MX电视台的报道,在日本大气环境研究及气象界引起很大的反响及注目,其研究成果已在国际顶级光学杂志Optics LettersApplied Optics 等发表。
    

       研究中心的研究课题紧跟国际最新激光雷达技术的发展动向,开展国际前沿的激光雷达探测技术的研发,并开展多种形式的国际合作,与国外的公司及大学建立长期的学术交流及合作研究关系。中心已于2005年10月聘请了日本著名国际激光雷达专家小林乔郎教授为兼职教授,协助开展国际学术交流,也将定期邀请国内外的专家教授来校访问讲学。
    

       研究中心的主要任务是面向我校教学和科研服务,以中心为依托带动学校的学科建设,扩展我校的新学科方向,培养一批具有高水平的学术科研队伍及激光雷达遥感测量技术专业人才。在科研方面,目前本中心正致力于新型激光雷达大气遥感技术的基础理论研究及实用测量系统的研发,尤其在白天高精度测温、测湿领域,进行激光雷达的小型化和高效率化的研究;在多参量测量技术的研究领域,将进一步开展高效率、多功能、多波长激光大气探测技术的研究及实用化技术的研发;在保证教学和科研的同时,开发研究一些具有自主知识产权的高新技术激光雷达遥测系统。

 

Welcome to LRCRSA of Xi'an University of Technology    


   The Laser Radar Center of Remote Sensing of Atmosphere (LRCRSA), funded with over 2 million RMB by Xi'an University of Technology, was established in Sep. 2005. The main role of LRCRSA is to meet with the services of teaching and science researches, to provide the impetus for the development of the academic discipline's construction, to expand new direction of the academic subjects, and to train a number of high-level specialty talents in the field of laser remote sensing.

LRCRSA has been capable of studying the main atmospheric parameters (atmospheric temperature, humidity, wind speed and direction, etc) and the optical properties of atmosphere (aerosol extinction and backscattering coefficients, optical thickness, visibility, particle-shaped matters such as clouds and aerosols, etc) with laser radar (lidar) technique.

Now, LRCRSA are devoted to the research of the basic theory for new-type laser lidar remote sensing and practical measuring system. Especially LRCRSA are focused on the study of the development of high-efficiency and miniaturization type of lidar system in the field of measurement of temperature and humidity in day-time with high precision, and are making efforts to develop a lidar system with high-efficiency, multi-function, multi-wavelength and its corresponding practicality system.

Professor Dengxin Hua, the principal of LRCRSA, has engaged in the field of basic theory of remote sensing of atmosphere and related products developments in Japan for over 10 years. The first multi-function laser radar system in the world developed by Prof. Hua aroused peoples' attention and had so tremendous influence in the field of environmental and meteorological study that it was then reported by Japanese Economic News, Japanese Industrial Journal and MX TV station of Tokyo. With his efforts for many years, his achievements have been published by several top-ranking optical Journals such as Optics Letters, Applied Optics and so on.

LRCRSA has been provided with many equipments, which include high power single frequency pulsed Nd:YAG laser, telescope receiver, optical components and detectors, and other auxiliary apparatus necessary to do lidar researches. The research of LRCRSA, not only keeps up with the tendency of international laser radar detecting technology but also develops kinds of international cooperation. At all times, LRCRSA are dedicated to related updated researches, and also have founded a long-term academic communication and cooperation study with several companies and universities overseas. In particular, Professor Takao Kobayshi, a famous international lidar expert, has been invited and employed to be an adjunct professor in Xi'an University of Technology in Oct.2005. Moreover, LRCRSA is also constantly to invite many well-known experts internal or external to give lectures.

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