PRI变换在脉冲列去交错中的适用性分析  

The Applicability Analysis of PRI Transform in the Pulse Train Deinterleaving

作　　者：安振[1] 李运祯[1] 

机构地区：[1]解放军电子工程学院,合肥230037

出　　处：《电子对抗》2006年第1期16-20,共5页Electronic Warfare

摘　　要：传统的雷达脉冲列去交错方法中应用的脉冲重复间隔估计算法是以计算接收到的脉冲串的自相关函数为基础，很容易出现信号的脉冲重复间隔及其整数倍（即子谐波）同时存在的现象，给雷达脉冲串的去交错造成了困难。为克服上述缺点。提出了PRI变换的脉冲重复间隔估计方法，几乎完全地抑制了出现在自相关函数中的子谐波。文章研究了这种算法对于稳定重频、抖动重频、参差重频、滑变重频等各种信号的适用性。计算机仿真结果表明，这种算法适用性较强。The traditional Pulse Repetition Interval（PRI） estimation algorithm is based on the autocorrelation function. By using this algorithm, the peaks are yielded not only at the location of PRI contained in the original pulse train but also at the location of the integer multiple of the fundamental PRI, which make it difficult to deinterleave pulse trains. In order to overcome this disadvantage, the PRI estimation algorithm based on the PRI transform is introduced in this paper, which can suppress the subhannonics almost completely. The applicability of this algorithm to many kind of repetition frequency signals is studied. Simulation shows that the applicability of this algorithm is good.

关 键 词：PRI变换 去交错 适用性 

分 类 号：TN957.51[电子电信—信号与信息处理]