NSSC OpenIR  > 微波遥感部
亚马逊热带雨林星载SAR辐射定标算法
Alternative TitleSpaceborne SAR Antenna Pattern Measurement Based onAmazon Tropic Rain Forest
云日升; 郭伟; 魏茉; 北京8701信箱
Department国家863计划微波遥感技术实验室
Source Publication雷达科学与技术
2007
Volume5Issue:2Pages:139-143,148
ISSN1672-2337
Language中文
Keyword星载sar 天线方向图测量 亚马逊热带雨林 一致性检验 lm算法
Abstract天线外定标是实现星载SAR天线方向图在轨测试的主要手段.天线方向图的准确测量,对星载SAR图像的应用具有重要作用.分布目标辐射定标在星载SAR天线方向图测试中受到广泛重视.亚马逊热带雨林的后向散射系数呈现大面积的均匀性和稳定性,故成为分布目标定标最主要的定标场.该文在分布目标定标原理的基础上,对基于亚马逊热带雨林的星载SAR天线方向图测量算法进行了研究,提出了采用K.Pearson统计量非参数假设检验的一致性处理算法,并采用Levenberg-Marquard算法(LM算法)估计俯仰向天线方向图模型参数.仿真数据验证了算法的可靠性和准确性.
Other AbstractExternal calibration is key method used for spaceborne SAR antenna onboard measurement.Accurate measurement of antenna pattern is important to spaceborne SAR image application,and dist ributed target antenna pattern measurement is widely concerned.Because the backscattering coefficient is constant,Amazon t ropic rain forest is the important calibration region.In this article,the spaceborne SAR Amazon tropic rain forest antenna pat tern measurement algorithm is researched and tested by J RES21 simulated data.Simulation result sprove the algorithm be correct and effective.
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/2005
Collection微波遥感部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
云日升,郭伟,魏茉,等. 亚马逊热带雨林星载SAR辐射定标算法[J]. 雷达科学与技术,2007,5(2):139-143,148.
APA 云日升,郭伟,魏茉,&北京8701信箱.(2007).亚马逊热带雨林星载SAR辐射定标算法.雷达科学与技术,5(2),139-143,148.
MLA 云日升,et al."亚马逊热带雨林星载SAR辐射定标算法".雷达科学与技术 5.2(2007):139-143,148.
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