摘要
FY-3卫星微波成像仪用于大气微波遥感、海洋微波遥感和陆地微波遥感,是气象、海洋和灾害监测的重要遥感手段之一。微波成像仪在轨运行时能否获取有价值的探测资料,得到定量化的应用和真正的业务使用,主要取决于微波成像仪能否进行精确定标。而非线性偏差的大小又直接与微波成像仪定标精度的大小有关。主要分析了影响微波成像仪非线性偏差的因素,以及降低微波成像仪非线性偏差的方法,并给出了微波成像仪各通道真空定标下非线性偏差。
FY-3 Microwave Radiation imager, which is used for atmosphere remote sensing , ocean remote sensing and earth remote sensing,is one of the important means of monitoring meteorology,ocean and oth- er disaster. Whether the Microwave Radiation imager can obtain the valuable exploration data , and get quantitative application and real business use or not when it is running in orbit, it mainly depends on the precision of the calibration.The size of the receiver non-linear deviation has the direct relationship with cali- bration accuracy, the factors affecting the non-linear deviation and the methods of reducing non-linear devi- ation are analyzed in this paper, the receiver non-linear deviation of the Microwave Radiation imager under vacuum condition is provided finally.
作者
陈卫英
刘高峰
何嘉恺
潘莉
Chen Weiying Liu Gaofeng He Jiakai Pan Li(Shanghai Aerospace Electronic Technology Institute, Shanghai 201109,China)
出处
《遥感技术与应用》
CSCD
北大核心
2017年第1期121-125,共5页
Remote Sensing Technology and Application
关键词
微波成像仪
非线性偏差
真空定标
Microwave Radiation imager
Non-linear deviation
Vacuum calibration
