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多跳频脉冲的高效测向算法 被引量：2

An effective direction finding method for multi-frequency hopping pulses
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摘要 针对多跳频脉冲测向提出一种基于时频域矩阵分解的高效算法.采用计算高效的SPW分布计算参考阵元与其他阵元的互时频分布构造时频域阵列模型,选择各个跳频脉冲在时频平面上能量聚集区内的时频点构造空间时频分布矩阵,对矩阵进行奇异值分解,然后运用ESPRIT思想估计方向.该方法在矩阵构造和时频分布计算两方面都具有较低的运算量,并且能够处理相干信号.仿真结果验证了算法的有效性. Based on time-frequency matrix decomposition,an effective direction finding method was proposed for multi-frequency hopping pulses.A time-frequency array model was constructed by effective cross-SPW Distribution of the reference and other sensors＇ output.Accordingly,the spatial time-frequency distribution（STFD） matrixes are formed by time-frequency points residing on their own power concentration regions of the frequency-hopping pulses.The directions were estimated by ESPRIT after singular value decomposition of the STFD matrix.The proposed method can deal with coherent signals and has low complexity in both matrix construction and time-frequency distribution computation.The simulation results show the efficiency of the method.
作者 王永明 王世练 张尔扬
机构地区 国防科技大学电子科学与工程学院 解放军
出处 《哈尔滨工程大学学报》 EI CAS CSCD 北大核心 2011年第5期662-666,共5页 Journal of Harbin Engineering University
基金 武器装备预研基金资助项目(9140A06050809KG0120)
关键词 阵列信号处理 测向 空间时频分布 跳频 array signal processing direction finding spatial time-frequency distribution frequency hopping
分类号 TN911.7 [电子电信—通信与信息系统]
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参考文献11

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共引文献118

同被引文献21

  • 1FU K C, CHEN Y F. Blind iterative maximum likeli- hood-based frequency and transition time estimation for frequency hopping systems [J]. IET Communications, 2013, 7(9): 883-892.
  • 2LIU X Q, NICHOLAS D S, SWAMI A. Blind high- resolution localization and tracking of multiple frequen- cy hopped signals [J]. IEEE Transactions on Signal Processing, 2002, 50(4) :889-901.
  • 3LIU X Q, NICHOLAS D S, SWAMI A. Joint hop timing and frequency estimation for collision resolution in FH networks [J]. IEEE Transactions on Wireless Communications, 2005, 4(6).. 3063-3074.
  • 4LIN C H, FANG W H. Joint angle and delay estima- tion in frequency hopping systems [J]. IEEE Transac- tions on Aerospace and Electronic Systems, 2013, 49 (2) .. 1042-1056.
  • 5WONG K T. Blind beamforming/geolocation for wide- band FFHs with unknown hop-sequences [J]. IEEE Transactions on Aerospace and Electronic Systems, 2001, 37(1): 65-76.
  • 6ZHANG Y M, OBEIDAT B A, AMIN M G. Spatial polarimetric time frequency distribution for direction of arrival estimation [J]. IEEE Transactions on Signal Processing, 2006, 54(4).. 1327-1340.
  • 7FU Kuoching, CHEN Yungfang. Blind iterative maximum likelihood-based frequency and transition time estimation for frequency hopping systems [ J ]. IET Communications, 2013, 7(9): 883- 892.
  • 8LIU Xiangqang, SIDIROPOULOS N D, SWAMI A. Blind high-resolution localization and tracking of multiple frequency hopped signals[ J]. IEEE Transactions on Signal Processing, 2002, 50(4): 889-901.
  • 9LIU Xiangqang, SIDIROPOULOS N D, SWAMI A. Joint hop timing and frequency estimation for collision resolution in FH networks [ J ]. IEEE Transations on Wireless Communications, 2005, 4(6): 3063-3074.
  • 10LIN C H, FANG W H. Joint angle and delay estimtion in frequency hopping systems[ J ]. IFF, Transaction on Aerospace and Electronic Systems, 2013, 49 (2) : 1042-1056.

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二级引证文献18

哈尔滨工程大学学报
2011年 第5期

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