【作者】 刘团结； 童庆禧； 郑兰芬； 汪骏发；

【Author】 Liu Tuanjie Tong Qingxi Zheng Lanfen Wang Junfa(1 .Institute of Remote Sensing Applications, Chinese Academy of Sciences2.The Shanghai Institute of Technical Physics, Chinese Academy of Sciences)

【机构】 中国科学院遥感应用研究所遥感信息科学开放研究实验室； 中国科学院上海技术物理所；

【摘要】 介绍了一种基于面阵CCD传感器件的航空多光谱数字相机系统的设计和实现,该系统的核心部件是1024×1024象元的面阵CCD相机,系统采用更换滤光片的方法来获得针对不同应用的最佳多波段组合,解决了多相机曝光参数实时控制、多相机同步触发、多通道高速数据采集、图像数据高速记录等问题,集成了GPS系统,并成功进行了一系列地面实验和航空遥感实验。更多还原

【Abstract】 For rapid and steady collection of high spectral resolution airborne data, a narrow band multispectral digital camera system (MDCS) was developed and tested in the year 2000. The MDCS was built based on three 1024x1024 pixels, 12bits digitalized area CCD cameras, whose FOV and IFOV are about 20 degree and 0.34 mrad respectively. Precise exposure control and synchronic trigger control are provided in this system, and the problem of collection and recording of large digital image data has been well solved. The center wavelength and bandwidth of the bandpass optical filters in this system can be customized to fit different application. The filter bandwidth can be changed from 10 to 25nm, and the filter center wavelength can be changed from 400nm to 900nm. The 10nm bandpass filters centered at 555, 650, 725nm and 650, 725, 825nm were used for agriculture research in the test phase. High spatial-resolution multispectral images were acquired on December 5, 2000 with the MDCS. At an altitude of approximately 3500 meters, the spatial resolution was 1.2 meter.更多还原