S波段雷达探测中的高精度电波折射误差修正方法  

Method of high-precision refraction error correction in S-band radar detection

作　　者：李川川 刘琨[2] 朱庆林[2] 朱杉 孔韬 LI Chuanchuan;LIU Kun;ZHU Qinglin;ZHU Shan;KONG Tao(Military Representative Office of Air Force Equipment Department in Jinan,Jinan 250023,China;China Research Institute of Radiowave Propagation,Qingdao 266107,China)

机构地区：[1]空军装备部驻济南地区军事代表室,济南250023 [2]中国电波传播研究所,山东青岛266107

出　　处：《空军预警学院学报》2019年第6期405-408,共4页Journal of Air Force Early Warning Academy

摘　　要：为提高S波段雷达探测精度,首先分析了对流层和电离层等电波环境对S波段雷达探测精度的影响,得出电波环境对信号产生的折射误差是影响雷达探测精度的主要误差源;然后利用射线描迹法,给出了对流层和电离层折射参数实时高精度遥感和探测方法,以实现S波段雷达全方位、多目标折射误差修正;最后对利用该方法研制的某型电波折射修正设备进行了验证.外场试验结果表明,该设备可实现对流层、电离层一体化实时高精度感知,可有效消除电波环境引起的距离和仰角折射误差,提高雷达探测精度.In order to improve the detection accuracy of S-band radar, this paper firstly analyzes the influence of radio wave environmental refraction errors such as troposphere and ionosphere on the detection accuracy of S-band radar, and comes to a conclusion that environment refraction error is the main error source that affects radar detection accuracy. Then, by use of ray tracing method, the paper presents the real-time high precision remote sensing and detection methods for refraction parameters of troposphere and ionosphere, so as to achieve the omni-directional, multi-target refraction error correction of S-band radar. Finally, the paper verifies a certain type of wave refraction correction equipment developed by this method. Field test results show that the device can realize integrated real-time and high-precision sensing of troposphere and ionosphere, effectively eliminate the distance and elevation angle refraction error caused by radio wave environment, and improve the radar detection accuracy.

关 键 词：S波段雷达 探测精度 电波环境 对流层 电离层 电波折射误差修正 

分 类 号：TN957[电子电信—信号与信息处理]