摘要
针对广播式自动相关监视(ADS-B)报文的时间延迟对ADS-B/广域多点相关(WAM)数据关联跟踪精度的影响问题,在ADS-B时间延迟条件下对最近邻数据关联(NNDA)和概率数据关联(PDA)两种经典的数据关联方法的跟踪性能进行比较分析;采用MATLAB仿真计算存在ADS-B时间延迟时,ADS-B报告位置与跟踪预测值的平均马氏距离及关联结果的位置误差均方根,对比两种数据关联方法在上述两个统计平均值的关系;分析结果表明:存在ADS-B时间延迟时,PDA方法在跟踪误差和稳健性上优于NNDA方法,同时ADS-B时间延迟会增加跟踪测量误差。
In view of the latency effect of Automatic Dependent Surveillance-Broadcast （ADS-B） messages on the tracking accuracy of ADS-B/WAM data association, the tracking performance comparison of nearest neighbor data association （NNDA） and probabilistic da- ta association （PDA）, two classical methods of data association, was analyzed under the ADS-B latency in this paper. MATLAB simula- tions were utilized to calculate average Mahalanobis distances between ADS- B position reports and predicted locations of tracking, and RMS of position errors of associated results under different ADS-B latency to compare two data association methods. Analytical results in- dicate that PDA methods outperform NNDA methods in tracking errors and robustness because of ADS-B latency. And ADS-B latency will increase the tracking measurement errors.
出处
《计算机测量与控制》
2016年第8期229-232,共4页
Computer Measurement &Control
基金
中央高校科技基本科技业务费中国民航大学专项(3122016H007)
