NSSC OpenIR  > 微波遥感部
机载W波段毫米波辐射计扫描成像研究
Alternative TitleStudy on Imaging with Airborne Scanning W2band Millimeter Wave Radiometer
孔德才; 李靖; 张升伟; 孙茂华; 刘和光; 姜景山; 北京8701信箱
Department国家863计划微波遥感技术实验室
Source Publication遥感学报
2004
Volume8Issue:4Pages:362-369
ISSN1007-4619
Language中文
KeywordW波段 毫米波辐射计 机载扫描成像 机载试验
Abstract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.
Other AbstractThrough 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.
Indexed ByCSCD
Funding Project中国科学院空间科学与应用研究中心
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/1920
Collection微波遥感部
Corresponding Author北京8701信箱
Recommended Citation
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.,...&北京8701信箱.(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.
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