中文摘要：

风云三号C星是我国第二代极轨气象卫星的首发业务星,星上装载了3个被动微波遥感载荷（微波成像仪、微波温度计Ⅱ型和微波湿温探测仪）,其中微波成像仪完全延续了风云三号A/B星的设计,两个微波大气探测载荷微波温度计Ⅱ型和微波湿温探测仪是在风云三号A/B星微波温度计和微波湿度计成功在轨运行和应用的基础上,根据应用需求在功能和性能两个方面从设计层面实现了大幅提升。本文重点介绍风云三号C星微波温度计Ⅱ型和微波湿温探测仪的功能、性能和设计指标,综述风云三号C星星载微波大气探测能力。风云三号C星星载微波大气探测系统,通过通道细分、探测频点增加和空间采样技术优化,突破了我国星载微波探测载荷技术瓶颈,提升了大气温湿度廓线的综合探测能力。

英文摘要：

FY-3C is the first satellite of Chinese second generation operational polar orbiting meteorological satellite series.Three passive microwave instruments are on board the FY-3C satellite：MWRI is just following the design of FY-3A/B,MWTS-Ⅱ has made great progress on channels splitting at the oxygen absorbing lines,and MWHTS has not only made more channels at vapor absorbing line,but also designed a new sounding frequency at 118 GHz.All those have made great progress at the design stage.In this paper,we give some key points on FY-3C/MWTS-Ⅱ and MWHTS,introduce the performance and design parameters of them.And finally we make an analysis on retrieval and sounding.