电子学报 ›› 2014, Vol. 42 ›› Issue (11): 2331-2336.DOI: 10.3969/j.issn.0372-2112.2014.11.032

• 科研通信 • 上一篇    

MIMO雷达正交频分非线性调频波形设计

赵伟, 赵永波, 李慧, 刘峥   

  1. 西安电子科技大学雷达信号处理国家重点实验室, 陕西西安 710071
  • 收稿日期:2013-11-11 修回日期:2014-05-20 出版日期:2014-11-25 发布日期:2014-11-25
  • 作者简介:赵伟 男,1979年6月生于河南省许昌市,在职博士生.主要研究方向为阵列信号处理、雷达信号处理和数据挖掘等. E-mail:ywzhao@mail.xidian.edu.cn;赵永波 男,1972年10月出生于河南省新乡市,博士,教授,博士生导师,获国家科技进步二等奖、国防科技进步一等奖和国防发明二等奖各1项,在国内外发表学术论文60余篇,主要研究方向为阵列信号处理、雷达信号处理、新体制雷达等. E-mail:ybzhao@xidian.edu.cn
  • 基金资助:

    中央高校基本科研业务费专项资金(No.K5051202047)

Orthogonal Frequency Division-Nonlinear Frequency Modulation Waveform Design for MIMO Radar

ZHAO Wei, ZHAO Yong-bo, LI Hui, LIU Zheng   

  1. National Laboratory of Radar Signal Processing, Xidian University, Xi'an, Shaanxi 710071, China
  • Received:2013-11-11 Revised:2014-05-20 Online:2014-11-25 Published:2014-11-25

摘要:

正交波形是多输入多输出雷达应用最广泛的波形,评价波形正交性好坏的重要指标是波形的自相关和互相关性能.针对正交频分线性调频信号的自相关存在主副比低且加窗抑制旁瓣会带来主瓣展宽和失配损失的问题,本文提出了正交频分非线性调频信号的模型和设计方法.仿真分析证明了该种波形比正交线性调频信号具有更好的相关性能.

关键词: 多输入多输出雷达, 波形设计, 正交频分线性调频, 正交频分非线性调频

Abstract:

Orthogonal waveform is the most widely used waveform in multiple input multiple output (MIMO) radar systems.The good performance in both auto-correlation and cross-correlation of transmitted orthogonal waveform is crucial for MIMO radar.In order to overcome the deficiency in auto-correlation performance of orthogonal frequency division-linear frequency modulation (OFD-LFM) signals,this paper proposes the model of orthogonal frequency division-nonlinear frequency modulation (OFD-NLFM) signals.The design method of OFD-NLFM signals for MIMO radar is also presented.Simulation results show that OFD-NLFM signals have better performance in both auto-correlation and cross-correlation compared with OFD-LFM signals.

Key words: multiple input multiple output (MIMO) radar, waveform design, orthogonal frequency division linear frequency modulation (OFD-LFM), orthogonal frequency division nonlinear frequency modulation (OFD-NLFM)

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