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基于混沌序列的MIMO雷达正交多相码波形设计 被引量：7

Polyphase orthogonal code waveform design based on chaotic sequences for MIMO radar
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摘要 基于混沌序列的良好相关性和随机性,提出了一种多输入多输出(MIMO)雷达正交多相码的设计方法.通过不同初值迭代得到混沌序列,经过相应的量化和多相编码得到混沌波形.由于不同混沌波形的自相关旁瓣不相关,因而在使用多脉冲相干累积提高信噪比(SNR)的脉冲体制下,主副瓣比得到提高.最后的仿真结果表明,目标所在多普勒通道的输出具有很好的主副瓣比. Based on the good autocorrelation and random property of chaotic sequences, a method was proposedto design a polyphase orthogonal code for multiple-input multiple-output （MIMO） radar. Chaotic waveforms could be generated by quantifying and polyphase-coding chaotic sequences from different initial values. Auto- correlation sidelobes of different chaotic waveforms were uncorrelated, so that the mainlobe-to-sidelobe ratio was improved under the pulse system which increased the signal-to-noise ratio （SNR） by using the pulse coherent integration. Finally, the simulation results showed that the output of the Doppler channel where the target was located had a good mainlobe-to-sidelobe ratio.
作者 申东 张林让 刘昕 刘楠
机构地区 西安电子科技大学雷达信号处理国家重点实验室
出处 《兰州大学学报（自然科学版）》 CAS CSCD 北大核心 2011年第1期100-105,共6页 Journal of Lanzhou University(Natural Sciences)
基金 国家自然科学基金项目(60672130) 国家重点实验室基金项目(0303072209)
关键词 MIMO雷达 混沌 正交多相码 波形设计 MIMO radar chaos polyphase orthogonal code waveform design
分类号 TN957 [电子电信—信号与信息处理]
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参考文献11

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共引文献9

同被引文献71

  • 1洛伦兹EN.混沌的本质[M].北京：气象出版社,1997.1-214.
  • 2DENG H. Polyphase code design for orthogonal netted radar systems[J]. IEEE Transactions on Signal Processing, 2004, 52(11): 3126-3135.
  • 3HAMMAD A K, ZHANG Y Y, JI C L, et al. Optimizing polyphase sequences for orthogonal netted radar[J]. IEEE Signal Processing Letters, 2006, 13(10): 589-592.
  • 4SINGH S E Polyphase radar signal design using modified simulated annealing algorithm[J]. IETE Journal of Research, 2007, 53(2): 173-182.
  • 5HUH P, LIU B. Genetic algorithm for designing polyphase orthogonal code[C]. The 4th International Conference on Wireless Communications, Networks and Mobile Computing, Dalian, China, Oct. 12-14, 2008: 1-4.
  • 6Fishier E, Haimowieh A, Blum R, et al. MIMO Radar: An Idea Whose Time Has Come [C] //Radar Conference, Proceedings of the IEEE. Philadelphia: IEEE, 2004: 71-78.
  • 7Farnett E C, Stevens G H. Pulse Compression Radar[M]. 2nd Ed. New York: McGraw-Hill, 1990.
  • 8Deng Hai. Polyphase Code Design for Orthogonal Netted Radar Systems[J]. IEEE Trans on Signal Processing, 2004, 52 (11) : 3126-3135.
  • 9Deng Hal. Synthesis of Binary Sequences with Good Autocorrelation and Cross-correlation Properties by Simulated Annealing[J]. IEEE Trans on Aerospace and Electronic Systems, 1996, 32(1) : 98-107.
  • 10Liu Bo, He Zishu, Zeng Jiankui, et al. Polyphase Orthogonal Code Design for MIMO Radar Systems[C]//Proc of CIE International Conference of Radar. Shanghai : IEEE, 2006 : 113-116.

引证文献7

二级引证文献30

兰州大学学报（自然科学版）
2011年 第1期

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