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针对海上靶场雷达对低空、远距离小目标的测量数据中存在大量的地海杂波干扰,陆海结合试验环境复杂,大气参数难以精确测量,电波折射修正困难,多径影响较大,以及自身的开环跟踪模式等因素,导致雷达俯仰角测量误差较大的问题,在充分利用靶场雷达测量网布站特点的基础上,提出了一种利用2台雷达共有段落的方位角和斜距信息,构建双雷达联合定位模型,完成目标弹道解算的方法。实测数据与仿真数据综合测试表明,通过使用该方法可有效解决雷达俯仰角测量信息超差对整体测量结果的影响,同时提高了靶场雷测数据处理的精度和可靠性。
A large number of ground-sea clutter interference exists in the measurement data of low-altitude and long-range small targets at sea range radar. The land-sea binding test environment is complex, the atmospheric parameters are difficult to accurately measure, the refraction of electric waves is difficult to be corrected, the multipath effect is greatly affected, The open loop tracking mode and other factors lead to the problem of large measurement error of the radar pitch angle. Based on the full use of shooting range radar to measure the characteristics of the mesh station, a new method is proposed which uses the azimuth and slant distance information , Build a dual radar joint positioning model, and complete the method of target trajectory solution. The comprehensive test of measured data and simulation data shows that the method can effectively solve the influence of over-range of radar pitch angle measurement information on the overall measurement results and improve the accuracy and reliability of the thunderstorm data processing at the shooting range.