信息通信
信息通信
신식통신
XINXI TONGXIN
2015年
1期
1-3
,共3页
Link16信号%跳周期%RSPWVD%信号侦察
Link16信號%跳週期%RSPWVD%信號偵察
Link16신호%도주기%RSPWVD%신호정찰
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。
針對Link16信號快跳頻、抗截穫的特點，文章提齣瞭一種基于重分配平滑偽魏格納維爾分佈(RSPWVD)的Link16信號跳週期估計算法。該算法首先應用RSPWVD時頻分析穫得Link16信號的時頻分佈，進而通過重心法穫得相鄰兩跳的中心時刻，最後通過加權平均各箇中心時刻的差值求得Link16信號的跳週期。分析和倣真結果錶明，該算法可以有效地對Link16信號的跳週期進行估計，不僅剋服瞭傳統算法不能有效解決時延脈遲帶來的影響的缺點，而且也提高瞭估計的準確性。
침대Link16신호쾌도빈、항절획적특점，문장제출료일충기우중분배평활위위격납유이분포(RSPWVD)적Link16신호도주기고계산법。해산법수선응용RSPWVD시빈분석획득Link16신호적시빈분포，진이통과중심법획득상린량도적중심시각，최후통과가권평균각개중심시각적차치구득Link16신호적도주기。분석화방진결과표명，해산법가이유효지대Link16신호적도주기진행고계，불부극복료전통산법불능유효해결시연맥충대래적영향적결점，이차야제고료고계적준학성。
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.
