摘要
调研了ESA的"土壤湿度和海洋盐度"(SMOS)卫星和后续发展计划,以及NASA的"宝瓶座"(Aquarius)卫星;对比分析了SMOS和Aquarius卫星盐度测量数据的应用情况。结果表明:在低纬度地区,Aquarius卫星的盐度测量精度均优于SMOS卫星,但是在高纬度地区的盐度测量精度较差。针对2颗卫星在应用中存在的同步测量手段欠缺、射频干扰(RFI)等突出问题,提出了相应的解决途径,如增加同步测量和采用多种RFI检测抑制手段。最后,提出了海洋盐度探测卫星的发展趋势,如开展辐射计反演与遥感数据预处理技术、高精度外定标技术和高精度热控技术研究。
The paper investigates ESA^s SMOS satellite and its future plans, and NASA＇s Aqua- rius satellite. The actual applications of the two satellites are analyzed, and the results show that the Aquarius＇s data is more accurate than those of SMOS in low latitudes but is worse in other area. The two satellites have flaws which include shortage of synchronous observation method and existing of RFI （RF interference）. To solve the problems this paper puts forward some methods,such as increasing synchronous observation and detecting RFI. In the end the paper summarizes the trends of sea surface salt satellite which include the techniques of radiometer retrieve and remote sensing date preprocessing, high accuracy calibration and thermal control.
出处
《航天器工程》
北大核心
2016年第1期119-123,共5页
Spacecraft Engineering
基金
国家自然科学基金(Y35011101B)
