PRI变换在脉冲列去交错中的适用性分析  

Applicability Analysis of PRI Transform in Pulse Train Destagger

作　　者：安振[1] 李运祯[1] 

机构地区：[1]电子工程学院,合肥230037

出　　处：《舰船电子对抗》2007年第5期54-57,共4页Shipboard Electronic Countermeasure

摘　　要：传统雷达脉冲列去交错方法中的脉冲重复间隔(PRI)估计算法,是以接收到的脉冲串的自相关函数为基础,很容易出现信号的PRI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变换的估计方法,几乎完全抑制了出现在自相关函数中的子谐波。研究了这种算法对于各种不同PRI信号的适用性。计算机仿真结果表明,这种算法适用于检测不同信号的PRI。The pulse repetition interval（PRI） estimation algorithm in the traditional radar pulse train destagger methods is based on the self-correlation function of the received pulse trains,it is easy to appear the phenomenon that the signal PRI and its integer times（that is sub-harmonic）are existent at the same time,which brings out the difficulty to the radar pulse trains destagger. In order to overcome the above disadvantage,the PRI estimation method based on the PRI transform is introduced in this paper, which can suppress the sub-harmonics in the self-correlation function almost completely. This paper studies the capability of the algorithm to various radar signals with varied PRI. The computer simulation results show that this algorithm is capable of detecting the PRI of various signals.

关 键 词：雷达脉冲 脉冲重复间隔变换 去交错 

分 类 号：TN957.52[电子电信—信号与信息处理]