To deal with the height finding performance of the 3D radar, based on the measured data by radar, this paper directs at the existing problems for radar’s height finding, analyzes the reasons for them and brings forward the counter-measures. By the improved results, the proposed measures are proved to be effective, which is of big significance in the real operating maintenance and exertion of operational performance of the 3D radar.%为研究三坐标雷达的测高性能，基于雷达实测数据，指出了雷达测高存在的问题，分析了问题产生的原因；给出了相应的解决措施。改进效果证明了这些措施是有效的，这对三坐标雷达的实际使用、维护和作战性能发挥具有重要现实意义。
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