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微坡辐射计的星载应用所面临的最大限制来自于空间分辨率。微波辐射计的被测信号为不相干噪声,无法应用有源SAR的戍像机理,因此其空间分辨率完全决定于接收天线的物理口径然而,天线大则重量大,航天应用成本高,技术难度太大,更严重的问题是传统的辐射计需要对天线进行机械扫描,这在很多星载情况下非常
The biggest limitation of on-board applications for micro-slope radiometers comes from the spatial resolution. The measured signal of the microwave radiometer is incoherent noise and can not be applied to the mechanism of active SAR imaging. Therefore, the spatial resolution of the microwave radiometer depends entirely on the physical size of the receiving antenna. However, when the antenna is large and heavy, the cost of spaceflight is high, and the technical difficulty Too big, the more serious problem is that traditional radiometers require mechanical scanning of the antenna, which is very common in many spaceborne situations