ADS-BINCPR编解码仿真及同频干扰研究  

CPR Encoding/Decoding Simulation and Co-Channel Interference Research About ADS-B IN

作　　者：刘萍[1] 倪育德[1] 马宇申[1] 

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：《现代导航》2013年第5期342-347,共6页Modern Navigation

基　　金：天津市智能信号与图像处理重点实验室开放基金(TJKLASP-2012-4);中央高校基本科研业务费(ZXH2011C013)

摘　　要：1090ES广播式自动相关监视(ADS-B)是国际民航组织(ICAO)推荐的一种监视模式。给出了ADS-B对目标飞机位置进行简洁位置报告(CPR)编解码的算法机理,仿真实现了报文收发的过程,并对收发的数据偏差进行了统计。同时,本文还通过建立接收模型,模拟仿真了二次雷达(SSR)A/C模式和S模式干扰信号以及本机接收距离对成功接收ADS-B报文的影响。研究结果表明,CPR算法对目标飞机位置编解码具有很高的有效性和准确性,减少同频干扰数以及缩短目标飞机和本机之间的距离,都能有效提高成功接收报文的概率。1090ES Automatic Dependent Surveillance-Broadcast （ADS-B） is a surveillance mode recommended by the International Civil Aviation Organization （ICAO）. The algorithm mechanism of CPR encoding and decoding to the target aircraft position is presented by the ADS-B. The process of messages receiving and sending is simulated, and the receiving and sending data is counted. Meanwhile, an ADS-B receiving model is established to simulate the influence on successful receiving ADS-B message when the mode A/C and mode S interferences in Second Surveillance Radar （SSR）.The results show that the CPR algorithm has the high validity and accuracy to the encoding and decoding of target aircraft position message, and that the reduction of co-channel interferences and decrease of the distance between target aircraft and local aircraft can effectively improve the probability of successful receiving ADS-B message.

关 键 词：广播式自动相关监视 报文 简洁位置报告算法 同频干扰 接收距离 

分 类 号：V241[航空宇航科学与技术—飞行器设计]