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星载测雨雷达的应用,必须满足一些主要条件:高的空间分辨率、宽阔的覆盖范围、大的动态降雨测量范围以及精确的点测量等。由于技术条件的限制,满足这些条件的雷达工作在被雨衰减的频率段,因此必须修正由于衰减所导致的误差。立体雷达方法利用雷达从两个不同角度对雨团的观测来进行衰减效应的订正并实现整个观察区域的雷达反射率因子和比衰减因子场的反演。通过数值实验研究了星载特性的引入造成的不均匀性束内填充效应对立体雷达方法的影响
The application of spaceborne rain radar must meet some of the main conditions: high spatial resolution, wide coverage, large dynamic rainfall measurement range and accurate point measurement. Due to technical limitations, radars that satisfy these conditions work in the frequency range attenuated by the rain and must therefore correct for errors due to attenuation. The stereo radar method uses radar observations of the rain mass from two different angles to correct for the attenuation effects and to achieve radar reflectivity factor and specific attenuation factor field inversion over the entire observation area. The effect of non-uniformity beam packing effect on the stereo radar method was studied by numerical experiments