共形天线表面微小焊盘视觉定位算法设计  

Design of Visual Positioning Algorithms for Tiny Pads on Surface of Conformal Antenna

作　　者：杜小东[1] 丁忆凡 田威[2] 王长瑞 李可[2] 王子航 胡贺南 DU Xiaodong;DING Yifan;TIAN Wei;WANG Changrui;LI Ke;WANG Zihang;HU Henan(Southwest China Research Institute of Electronic Equipment,Chengdu 610036,China;Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]西南电子设备研究所,四川成都610036 [2]南京航空航天大学,江苏南京210016

出　　处：《电子机械工程》2024年第2期53-58,64,共7页Electro-Mechanical Engineering

基　　金：四川省宽频带电子产品智能制造工程技术研究中心开放基金资助项目(BEIM2022B004);国家自然科学基金资助项目(52075250,52175468);江苏省自然科学基金资助项目(BK20211185)。

摘　　要：共形天线是一种特殊形态的新型雷达天线,具有低剖面性以及低散射面积,是未来雷达天线发展的重要趋势之一。当前,共形天线的装配方式正由人工装配转向自动化装配以提升生产效率和批产一致性,但共形天线表面的焊盘尺寸小,数量多且分布在复杂曲面上,现有视觉定位算法难以满足实际使用需求。为此,文中提出了一种多目标亚像素定位算法。该算法结合了模板匹配和亚像素定位算法,可以同时给出多个焊盘的精准位置信息。由仿真分析与实验验证可知,该算法的视觉定位精度可达5μm,有效提升了共形天线的装配质量。The conformal antenna is a new type of radar antenna with a special shape,which has a low profile and low scattering area.It is one of the important development trends of future radar antenna.Currently,the assembly of conformal antenna is shifting from manual assembly to automated assembly to improve production efficiency and batch production consistency.However,due to the small size and large number of pads on the surface of conformal antenna and their distribution on complex curved surfaces,it is difficult for the existing visual positioning algorithms to meet the requirements of practical use.For this reason,a multi-objective sub-pixel positioning algorithm is proposed in this paper.The algorithm combines template matching and sub-pixel positioning algorithms to give accurate location information for multiple pads simultaneously.The simulation analysis and experimental verification show that the visual positioning accuracy of this algorithm can reach 5µm,which effectively improves the assembly quality of the conformal antenna.

关 键 词：共形天线 智能装配 模板匹配 亚像素定位算法 

分 类 号：TN82[电子电信—信息与通信工程]