基于双阵元天线的ADS-B解交织投影算法  

ADS-B Deinterleaving Projection Algorithm Based on Dual Antennas

作　　者：苏志刚[1] 张玉鑫 韩冰 郝敬堂[1] SU Zhi-gang;ZHANG Yu-xin;HAN Bing;HAO Jing-tang(Sino-European Institute of Aviation Engine ering,Civil Aviation University of China,Tianjin 300300,China)

机构地区：[1]中国民航大学中欧航空工程师学院,天津300300

出　　处：《计算机仿真》2024年第7期244-249,280,共7页Computer Simulation

基　　金：中央高校基本科研业务费中国民航大学专项(3122019183);天津市教委科研计划项目(2022KJ059)。

摘　　要：随着广播式自动相关监视(Automatic Dependent Surveil lance-Broadcast,ADS-B)技术的普及,交通密集区域内多条ADS-B信号的交织问题难以避免。为了降低设备成本并提高系统在低成本条件下的可用性,针对双阵元天线三条ADS-B信号交织问题,提出了双阵元天线投影算法。首先,上述方法基于频域插值理论与最小描述长度准则进行信源数估计;然后,采用功率倒置算法进行空域滤波,在未知信号波达方向的条件下抑制非期望信号,从而将双天线三信号的解交织问题转化为单天线双信号的解交织问题;最后,由虚拟多通道法扩维后,基于改进的投影算法分离交织信号。仿真验证了以上算法的有效性。With the popularity of Automatic Dependent Surveillance-Broadcast(ADS-B)tech nology,the interleaving problem of multiple ADS-B signals in den se traffic areas is unavoidable.In order to reduce equipment costs and improve system availability,the interleavin g problem of three ADS-B signals with dual an tennas was considered,and a dual-antenna projection algorithm was propo sed in this paper.Firstly,the method estimated the number of sources based on frequency-domain interpolation the ory and the minimum description length crite rion;then,the power inversion algorithm was used for spatial filtering technology to suppress undesired signals u nder the condition of unknown signal direction of arrival,so that the dein terleaving problem of dual-antenna three-signal was transformed into the deinterleaving problem of single-antenna du al-signal;finally,the interleaved signal was separated based on the improved projection algorithm after dimension expansion by virtual multi-channel method.The effectiveness of the algorithm is verified by simulation experiments.

关 键 词：广播式自动相关监视 欠定盲信号分离 最小描述长度 功率倒置算法 投影算法 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]