基于海洋地理景物三维模型的飞行器雷达目标粘连海域计算方法  

A method for computing the radar target adhesion area of aircraft based on 3D marine geographical feature models

作　　者：孟浩 张立华[1] 胡海[2] 饶世钧[3] 高保慧 Meng Hao;Zhang Lihua;Hu Hai;Rao Shijun;Gao Baohui(Dept.of Military Oceanography and Hydrography&Cartography,Dalian Naval Academy,Dalian,116016,China;Dept.of Missile and Warship Gun,Dalian Naval Academy,Dalian,116016,China;Dept.of Information System,Dalian Naval Academy,Dalian,116016,China)

机构地区：[1]海军大连舰艇学院军事海洋与测绘系,大连116018 [2]海军大连舰艇学院导弹与舰炮系,大连116018 [3]海军大连舰艇学院信息系统系,大连116018

出　　处：《战术导弹技术》2025年第1期136-145,161,共11页Tactical Missile Technology

摘　　要：针对飞行器探测海洋地理景物(Marine Geographical Feature,MGF)附近水面目标时,现有雷达目标粘连(Radar Target Adhesion,RTA)分析方法大多将MGF简化为质点或仅利用二维轮廓数据,难以应用于非掠海飞行器的问题,提出了一种基于MGF三维模型的RTA海域计算方法。该方法先基于雷达距离、方位角和俯仰角分辨率分析RTA三维区域的构建原理;然后,计算雷达三维位置点下MGF三维模型中各强电磁特征点对应的RTA三维区域并求并集;最后,将该并集与二维海面求交集,精确确定易发生RTA现象的水面目标移动海域。理论推导与仿真实验结果表明,该方法可计算指定MGF三维模型、雷达三维位置点和雷达三维分辨率下的RTA海域;对于掠海飞行器,该方法与仅利用MGF二维轮廓的方法相比,计算得到的RTA海域差异极小,面积相差在1%以内,验证了该方法的有效性;相较于将MGF简化为质点和仅利用MGF二维轮廓的方法,该方法可应用于任意高度的飞行器,具备更强的通用性。In response to the radar target adhesion(RTA) issue when aircrafts detect surface targets near marine geographical features(MGF), existing methods often simplify the MGF to point masses or use its 2D contours, which are unable to be applied for non sea-skimming aircrafts. A method is proposed to calculate the RTA area based on 3D models of MGF. Firstly, a 3D RTA area is constructed with radar range, azimuth angle, and elevation angle resolution. Then, the 3D RTA areas corresponding to the strong electromagnetic points of the MGF 3D model with radar 3D position are calculated and the union of these areas is taken.Finally, this union with the 2D sea surface is intersected to accurately determine the maritime areas where RTA is easy to occur. Theoretical derivations and simulation results indicate that the RTA area under specified 3D MGF model, radar 3D position and resolutions can be calculated with the proposed method. For sea-skimming aircrafts, compared with the method that only use 2D contours of the MGF, the difference in the RTA area calculated by the proposed method is minimal, with an area difference within 1%, which verifies the effectiveness of the proposed method. Compared with the methods that simplify MGF to point masses and only use 2D contours of the MGF, the proposed method can be applied to aircrafts at any flight altitude.

关 键 词：飞行器 水面目标 任务规划 雷达分辨率 海洋地理景物 雷达目标粘连 三维模型 

分 类 号：TJ760.1[兵器科学与技术—武器系统与运用工程]