激光雷达与高光谱遥感对地立体探测研究

将激光雷达对大气,水体的透视及对地精确测距定位的立体成像探测能力和高光谱技术相结合,发展先进的空、天基对地立体成像综合定量探测系统,是国家对大气、陆地和海洋精确立体综合定量探测的迫切需要,也是遥感技术自身发展进步的要求,激光与地面、水体和大气的相互作用及其在高光谱的遥感响应是空,天基激光雷达和高光谱对地立体成像综合定量探测的核心理论基础和关键科学问题.综述了激光雷达对地探测系统的研究现状和发展趋势.提出了新的基于激光雷达与高光谱遥感的对地立体探测系统.将激光雷达对大气、水体的透视以及对地的精确测距定位与高光谱技术相结合,介绍了该系统的原理方法和特点.从激光雷达和高光谱数字影像的广义大气修正和地形辐射改正,大气光学厚度与程辐射图像的生成,激光雷达的非均匀水体修正和水底地形改正,激光雷达和高光谱与介质以及目标的相互作用,多源数据融合等五个方面阐述了该体系的关键技术及其研究思路.

Research on Tridimensional Ground Exploration Based on LIDAR and Hyperspectral Remote Sensing

To develop an advanced air- and space-based quantitative stereo imaging earth detection system by integrating a Light Detection and Ra吨i吨(LIDAR) system with a hyperspectral technology is an urgent need for our country to monitor atmosphere, land and ocean quantitatively. The correlation of the laser with the land, water and atmosphere and its remote response in hyperspectra are the core theoretical ba启is of the air- and space-based quantitative stereo imaging earth detection system. The current status and development trend of the LIDAR earth detection system are overviewed. A new stereo earth detection system bru弓ed on a LIDAR system and a hyperspectral remote sensing technology is proposed. Its operation principle and characteristics are presented. The key techniques and research ideas of the system are described in the following five aspects: the generalized atmospheric and topographic radiation correction of LIDAR and hyperspectral images, the generation of the images of aerosol optical path and path radiation, the non-uniform water and underwater topographic correction of LIDAR, the correlation of LIDAR and hyperspectral signals with media and targets and the multi-source data fusion.