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本文分析了遥感微波辐射计的逆向辐射噪声温度和口面定标源的亮度温度，建立了口面定标源的亮度温度模型。深入分析用口面定标方法反演微波辐射计的天线温度时过向辐射噪声对天线温度标定的影响。
In this paper, the radiation temperature and the brightness temperature of the calibration source of the remote sensing microwave radiometer are analyzed, and the brightness temperature model of the oral calibration source is established. The influence of radiated noise on antenna temperature calibration when the antenna temperature of microwave radiometer is inverted by the method of mouth surface calibration is deeply analyzed.