CAJ | 학술논문

　　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。
　　해양이호（HY-2A）위성대기교정미파복사계（ACMR）시위뢰체고도계제공대기로경연지교정적미파복사계。본문침대ACMR열진공정표시험적원리、방법、실시과정급시험결과진행료천술화분석，득도료ACMR 3개빈솔적복사전수계수화비선성계수，병진행료천선정정적발사전산법분석，급출료천선온도계수。이용저사계수대재궤수거진행료처리，득도료재궤천선온도전환계수，병여Jason-1、Jason-2위성상탑재적미파복사의（JMR）진행료필배비교，결과표명일치성량호。
Atmospheric correction microwave radiometer(ACMR)is one of the main payloads for cor-recting 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,espe-cially 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 algo-rithms 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 mi-crowave 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.