基于RSPWVD的Link16信号跳周期估计算法  

Hop period estimation algorithm of Link16 signal based on RSPWVD

作　　者：王卓然[1] 代海鹏[1] 

机构地区：[1]重庆邮电大学移动通信重点实验室,重庆400065

出　　处：《信息通信》2015年第1期1-3,共3页Information & Communications

基　　金：国家自然科学基金资助项目(项目编号:61301126);重庆市基础与前沿研究计划项目(项目编号:cstc2013jcyj A40041)

摘　　要：针对Link16信号快跳频、抗截获的特点,文章提出了一种基于重分配平滑伪魏格纳维尔分布(RSPWVD)的Link16信号跳周期估计算法。该算法首先应用RSPWVD时频分析获得Link16信号的时频分布,进而通过重心法获得相邻两跳的中心时刻,最后通过加权平均各个中心时刻的差值求得Link16信号的跳周期。分析和仿真结果表明,该算法可以有效地对Link16信号的跳周期进行估计,不仅克服了传统算法不能有效解决时延脉冲带来的影响的缺点,而且也提高了估计的准确性。Aiming at the property of fast hop and anti-interception, this paper proposed a hop period estimation of Link16 signal based on Reassigned Smoothed Pseudo Wigner-Ville Distribution（RSPWVD）. This algorithm acquired the time-frequency dis-tribution of Link16 signal, then solving the central time of the adjacent 2 hops and finally obtained the period by weighting the differences of the central time. Analysis and simulation indicated this algorithm could effectively estimate the period, not only overcome the shortcoming of influences of delay pulses, but also increase the accuracy of the results.

关 键 词：Link16信号 跳周期 RSPWVD 信号侦察 

分 类 号：TN911[电子电信—通信与信息系统]