星载微波辐射计的天线提供的是宽带噪声功率信号。
The signal given by the antenna of spaceborne microwave radiometer is a wide band noise power signal.
由于天线尺寸和重量受到限制，星载微波辐射计的空间分辨率通常都比较低。
Generally the spatial resolution of spaceborne microwave radiometer is low since its antenna size and weight are limited by its platform.
星载微波辐射计外定标的关键问题是通过辐射传输方程计算天线入瞳处亮温。
The key issue in external calibration of microwave radiometer on board satellite is the determination of brightness temperature on the pupil of antenna by using radiative transfer equation.
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