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HY-2A卫星大气校正微波辐射计在轨数据定标和检验研究
Alternative TitleIn-orbit calibration and validation of atmospheric correction microwave radiometer on HY-2A satellite
王振占; 张德海; 赵谨; 李芸; 北京8701信箱
Department国家863计划微波遥感技术实验室
Source Publication中国工程科学
2013
Volume15Issue:7Pages:44-52
ISSN1009-1742
Language中文
KeywordHy-2a Acmr 定标和检验
Abstract海洋二号(HY-2A)卫星大气校正微波辐射计(ACMR)是为雷达高度计提供大气路径延迟校正的微波辐射计。本文针对ACMR热真空定标试验的原理、方法、实施过程及试验结果进行了阐述和分析,得到了ACMR 3个频率的辐射传输系数和非线性系数,并进行了天线订正的发射前算法分析,给出了天线温度系数。利用这些系数对在轨数据进行了处理,得到了在轨天线温度转换系数,并与Jason-1、Jason-2卫星上搭载的微波辐射仪(JMR)进行了匹配比较,结果表明一致性良好。
Other AbstractAtmospheric correction microwave radiometer (ACMR) is one of the main payloads for correcting atmospheric path delay of radar altimeter on HY-2A satellite. After discussion and analysis on thermal vacuum calibration method of ACMR, microwave transfer functions and related coefficients were given, especially nonlinear coefficients derived from the test for correcting nonlinear responds between the input of antenna temperature and the output of voltage at each channel of ACMR. Meanwhile, antenna pattern correction algorithms for removing the effects of side-lobe and cross-polarization were derived and their coefficients were used for in-orbit data processing. The calibrated antenna temperatures were compared with the similar space-borne microwave radiometer on Jason-1 and Jason-2 satellite (JMR), launched by the NASA-French Space Agency Ocean Surface Topography Mission. The results of comparison showed that the data from ACMR were well matched to those from Jason-1 and Jason-2.
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/122/2083
Collection微波遥感部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
王振占,张德海,赵谨,等. HY-2A卫星大气校正微波辐射计在轨数据定标和检验研究[J]. 中国工程科学,2013,15(7):44-52.
APA 王振占,张德海,赵谨,李芸,&北京8701信箱.(2013).HY-2A卫星大气校正微波辐射计在轨数据定标和检验研究.中国工程科学,15(7),44-52.
MLA 王振占,et al."HY-2A卫星大气校正微波辐射计在轨数据定标和检验研究".中国工程科学 15.7(2013):44-52.
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