机载W波段毫米波辐射计扫描成像研究

	机载W波段毫米波辐射计扫描成像研究
	孔德才 ; 李靖 ; 张升伟 ; 孙茂华 ; 刘和光 ; 姜景山
刊名	遥感学报
	2004
卷号	8 期号:4 页码:362-369
关键词	W波段毫米波辐射计机载扫描成像机载试验
ISSN号	1007-4619
其他题名	Study on Imaging with Airborne Scanning W2band Millimeter Wave Radiometer
通讯作者	北京8701信箱
中文摘要	通过机载试验,本文进行了W波段毫米波辐射计(RADW92)扫描成像研究,取得了黄河、渭河部分水域的微波辐射图像.试验结果表明,RADW92基本满足星载应用的要求.文中分析了影响图像质量的各种误差因素,并且提出了相应的解决方案.RADW92工作的中心频率为92GHz,带宽2GHz,积分时间60ms,系统灵敏度0.6K,线性度0.999,天线为卡塞格伦(Cassegrain)天线.
英文摘要	Through the airborne experiment,a research on the W2band Millimeter Wave Radiometer (RADW92) is introduced in this article.Microwave remote sensing images of parts of the Yellow River and the Weihe River were acquired,which were the first batch images produced from scanning W2band Millimeter Wave Radiometer in China.The experiment shows that RADW92 is adequate for space use. The analysis of some factors influencing the image quality as well as the solutions to them are included in this article.The RADW92 works with operating frequency at 92GHz,the bandwidth 2GHz,the integration time 60ms,the system sensitivity 0.6Kand the linearity better than 0.999.Cassegrain Antenna was designed for conical scanning and imaging. 　　The two images presented in the paper are both original results without any correction.Compared to the reference map,both rivers on the images have the identical trends with the reference maps.The geometrical formof both rivers has distortion to some extent.Many reasons can result in the distortion including scanning track approximation ,longitude and latitude approximation,altitude error,velocity and attitude approximation,etc.Moreover,the algorithmof software is also an important factor that affects image qualities.According to that,the observed data for spaceborne imaging should be matched with the parameters of the imaging platform for the geometrical correction.
学科主题	微波遥感
收录类别	CSCD
资助信息	国家863-2
语种	中文
CSCD记录号	CSCD:1600371
内容类型	期刊论文
源URL	[http://ir.cssar.ac.cn/handle/122/1920]
专题	国家空间科学中心_微波遥感部
推荐引用方式 GB/T 7714	孔德才,李靖,张升伟,等. 机载W波段毫米波辐射计扫描成像研究[J]. 遥感学报,2004,8(4):362-369.
APA	孔德才,李靖,张升伟,孙茂华,刘和光,&姜景山.(2004).机载W波段毫米波辐射计扫描成像研究.遥感学报,8(4),362-369.
MLA	孔德才,et al."机载W波段毫米波辐射计扫描成像研究".遥感学报 8.4(2004):362-369.