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慢起伏不可分辨目标的单脉冲角估计 被引量：3

Angle estimation for slow-fluctuation unresolvable targets with monopulse radar
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摘要 不可分辨目标角估计方法大多是以SwerlingⅡ型目标进行信号建模,这通常需要雷达采用频率捷变来实现脉冲间目标幅度的不相关。考虑到非频率捷变雷达观测的目标回波为慢起伏的情况,深入研究了目标雷达散射截面积(radar cross section,RCS)起伏特性对单脉冲雷达测向的影响,提出了一种基于目标单脉冲角估计统计特征的两个慢起伏不可分辨目标的角度分辨方法。Monte Carlo仿真结果表明了该方法的有效性。 The modelling of angular estimation methods for unresolvable targets is mostly based on Swerling Ⅱ type targets.In this case,however,frequency agility is usually used to ensure that the amplitudes of the targets for pulse-to-pulse are irrelevant.Considering that the target echoes observed by non-frequency agility radars are slowly fluctuant,the influence of targets＇ radar cross section（RCS） fluctuation on the direction finding of monopulse radars is investigated and an angular resolution approach for two slow-fluctuation unresolvable targets based on statistical characteristics of monopulse angular estimation is provided.Monte Carlo simulations confirm the validity of the proposed approach.
作者 赵宜楠 姚剑 李风从
机构地区 哈尔滨工业大学(威海)信息科学与工程学院 中国电子科技集团公司第五十四研究所
出处 《系统工程与电子技术》 EI CSCD 北大核心 2010年第10期2021-2024,共4页 Systems Engineering and Electronics
关键词 单脉冲雷达 不可分辨目标 角估计 慢起伏 monopulse radar unresolved target angle estimation slow fluctuation
分类号 TN953.5 [电子电信—信号与信息处理]
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参考文献16

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同被引文献24

  • 1朱玉鹏,李朝伟,黎湘,庄钊文.单脉冲雷达多目标分辨技术研究[J].电光与控制,2004,11(4):7-10. 被引量：4
  • 2李朝伟,周希元,陈卫东,周一宇.单脉冲雷达主波束内多目标的检测方法[J].电子学报,2006,34(6):1026-1030. 被引量：12
  • 3BLAIR W DBRANDT P M.Unresolved Rayleigh detection using monopulse measurements[J].IEEE Transactions on Aerospace and Electronic Systems199834(2):543-552..
  • 4BLAIR W DBRANDT P M.Monopulse DOA estimation of two unresolved Rayleigh targets[J].IEEE Transactions on Aerospace and Electronic Systems200137(2):452-469..
  • 5SINHA AKIRUBARAJAN TBARSHALOM Y.Maximum likelihood angle extractor for two closely spaced targets[J].IEEE Transactions on Aerospace and Electronic Systems 200238(1):183-201..
  • 6WANG Z.Angle estimation for two unresolved targets with monopulse radar[J].IEEE Transactions on Aerospace and Electronic Systems200440(3):998-1018..
  • 7ZHANG XWILLETT PBARSHALOM Y.Monopulse radar detection and localization of multiple unresolved targets via joint bin processing[J].IEEE Transactions on Signal Processing200553(4):1125-1236..
  • 8ZHANG XWILLETT PBARSHALOM Y.Detection and localization of multiple unresolved extended targets via monopulse radar signal processing[J].IEEE Transactions on Aerospace and Electronic Systerms200945(2):455-472..
  • 9SHERMAN S MBARTON D K.Monopulse principles and techniques[M].Boston:Artech House2011.
  • 10赵宜楠,姚剑,李风从.信噪比未知时不可分辨目标的单脉冲角估计[J].现代雷达,2010,32(9):40-43. 被引量：2

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系统工程与电子技术
2010年 第10期

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