混沌调频-调相MIMO 雷达正交波形设计

doi:10.3969/j.issn.0255-8297.2014.06.007

应用科学学报 ›› 2014, Vol. 32 ›› Issue (6): 588-595.doi: 10.3969/j.issn.0255-8297.2014.06.007

混沌调频-调相MIMO 雷达正交波形设计

王佳佳，谢亚楠，谭子苗

上海大学通信与信息工程学院，上海200072

收稿日期:2014-01-11 修回日期:2014-05-09 出版日期:2014-11-28 发布日期:2014-05-09
作者简介:谢亚楠，研究员，博导，研究方向：微波遥感与系统，E-mail: yxie@shu.edu.cn
基金资助:
上海市科委重点攻关计划基金(No.11511501902)资助

Frequency-Modulated and Phase-Modulated Orthogonal Waveform Design for MIMO Radar Based on Chaotic Map

WANG Jia-jia, XIE Ya-nan, TAN Zi-miao

School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China

Received:2014-01-11 Revised:2014-05-09 Online:2014-11-28 Published:2014-05-09

摘要/Abstract

摘要： 基于混沌序列的良好相关性和随机性以及双混沌序列的复杂性，在子脉冲内部采用具有抗干扰高斯噪声的Bernouli 单混沌映射来进行连续频率调制，同时在子脉冲之间采用双混沌映射、Logistic 映射、Tent 映射进行相位调制. 为了便于分析信号模型，首先对信号模型进行离散化，并推导了详细的表达式；进一步对信号频谱、模糊特性，以及信号的正交性进行理论推导和分析；最后对信号波形进行方法设计和数值仿真. 结果表明，该信号模型具有很好的正交性和可靠性.

关键词: MIMO雷达, 单双结合混沌映射, 调频-调相, 正交波形设计

Abstract: Based on good correlation and randomness of chaotic sequences, and complexity of double chaotic sequences, this paper proposes a MIMO radar signal model. Inside a sub-pulse, continuous frequency modulation is used with a single Bernouli chaotic map, which can resist interference of Gaussian noise. Between sub-pulses, phase modulation is used with double chaos map, i.e., Logistic and Tent. To analyze the signal model, the signal’s expression is discretized and deduced in detail. The expressions of average ambiguity function and frequency spectrum are derived. Average fuzzy characteristics and orthogonality of the signal waveforms are analyzed in theory. Numerical simulation shows the signal model with good orthogonality and reliability In this paper.

Key words: MIMO radar, single-double chaotic map, frequency-modulation and phase-modulation, orthogonal waveform design

中图分类号:

TN957

王佳佳，谢亚楠，谭子苗. 混沌调频-调相MIMO 雷达正交波形设计[J]. 应用科学学报, 2014, 32(6): 588-595.

WANG Jia-jia, XIE Ya-nan, TAN Zi-miao. Frequency-Modulated and Phase-Modulated Orthogonal Waveform Design for MIMO Radar Based on Chaotic Map[J]. Journal of Applied Sciences, 2014, 32(6): 588-595.

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混沌调频-调相MIMO 雷达正交波形设计

Frequency-Modulated and Phase-Modulated Orthogonal Waveform Design for MIMO Radar Based on Chaotic Map

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