基于改进单天线投影算法的广播式自动相关监视信号分离  

Signal Separation for Automatic Dependent Surveillance-Broadcast Using Improved Single Antenna Project Algorithm

作　　者：王文益[1] 邵宇识 WANG Wenyi;SHAO Yushi(Tianjin Key Laboratory for Advanced Signal Processing,Civil Aviation University of China,Tianjin 300300,China)

机构地区：[1]中国民航大学天津市智能信号与图像处理重点实验室,天津300300

出　　处：《电子与信息学报》2020年第11期2720-2726,共7页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(U1833112)。

摘　　要：广播式自动相关监视(ADS-B)作为一种新的监视技术正受到国际民用航空组织(ICAO)的大力推广。然而,由于ADS-B信号传输具有随机性,多条信号交织问题不可避免。该文提出一种改进的单天线投影算法(PASA)。利用单通道分离交织信号,首先对单通道接收到的数据提出一种新的矩阵重构方式,从而降低两条信号之间的相对时延和频偏要求;然后利用投影算法分离交织信号。仿真实验结果验证了该算法的有效性。The Automatic Dependent Surveillance-Broadcast(ADS-B),as a new surveillance technology,is being vigorously promoted by International Civil Aviation Organization(ICAO).However,overlapping among multiple signals is inevitable because of the randomness of ADS-B signal transmission.An improved Project Algorithm Single Antenna(PASA)algorithm which separates the overlapping signals with one single channel is proposed.Firstly,a new matrix reconstruction method for the data that received by single channel is proposed to decrease the requirement of relative time delay and frequency difference between two ADS-B signals,and then the overlapping signals can be separated by utilizing the projection algorithm.The effectiveness of the algorithm is verified by simulation experiments.

关 键 词：广播式自动相关监视 信号解交织 单通道 矩阵重构 

分 类 号：TN967.1[电子电信—信号与信息处理]