NSSC OpenIR  > 微波遥感部
星载毫米波辐射计地面定标实验
Alternative TitleGround Cal ibration Exper imen t of SpaceborneM ill imeterWave Radiometer
张东; 郭伟; 北京8701信箱
Department国家863计划微波遥感技术实验室
Source Publication遥感技术与应用
2005
Volume20Issue:4Pages:439-442
ISSN1004-0323
Language中文
Keyword嫦娥一号 微波辐射计 定标
Abstract对CE-1(嫦娥一号)卫星有效裁荷微波探测仪初样样机8mm微波辐射计进行了地面定标实验.测量了接收机的线性度和灵敏度;建立了射频前端微波辐射传输模型;应用该模型并结合测试结果,建立了失配条件下辐射计天线温度的定标方程.实验结果表明,接收机线性度为0.9999,灵敏度为0.17K,定标误差小于0.85K.为CE-1正样样机的研制以及科学目标的实现提供了定标参考.
Other AbstractChangE21 (CE21) will be the first satellite of Ch ina in lunar o rb it. It s radiometer operates at 3.0,7.8,19.35 and 37 GHz in a nadir view ing mode. By now ,the prelaunch experimen tal CE21M icrow ave Radiometer is developed. In th is paper, an experimen t on the ground calib rat ion of 37GHz channel is carried out.First, the linearity and sen sit ivity of it sreceiver is obtained to be 0.9999 and 0.17 K, respect ively, and satisfy the perfo rmance requ irements,so CE21M icrow ave Radiometer can be calib rated th rough high and low temperatu repoints:the h igh temperatu repoint is from the match ing load, the low one is f rom the liqu id n it rogen ref rigerated calib rat ion b lackbody target. Mo reover,to amend the inf luence by the t ran smission netwo rk, the modif ied hardw are radiat ive t ran sfer model is bu ilt up. The an tenna temperatu re calib rat ion equat ion, which accoun t s fo r lo sses and m ismatch, is derived f inally based on the model and the erro r of calib rat ion is less than 0.85K.The resu lt s p rovide a con st ruct ive reference to the fu rther developmen t of CE21M icrow ave Radiometer for launch.
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/122/1994
Collection微波遥感部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
张东,郭伟,北京8701信箱. 星载毫米波辐射计地面定标实验[J]. 遥感技术与应用,2005,20(4):439-442.
APA 张东,郭伟,&北京8701信箱.(2005).星载毫米波辐射计地面定标实验.遥感技术与应用,20(4),439-442.
MLA 张东,et al."星载毫米波辐射计地面定标实验".遥感技术与应用 20.4(2005):439-442.
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