电子学报 ›› 2013, Vol. 41 ›› Issue (12): 2499-2502.DOI: 10.3969/j.issn.0372-2112.2013.12.028

• 科研通信 • 上一篇    下一篇

零自相关区相位编码波形设计

李风从, 赵宜楠, 乔晓林   

  1. 哈尔滨工业大学电子与信息工程学院, 黑龙江哈尔滨 150001
  • 收稿日期:2012-11-29 修回日期:2013-03-06 出版日期:2013-12-25 发布日期:2013-12-25
  • 通讯作者: 赵宜楠
  • 作者简介:李风从 男,1985年出生于湖北省黄石市.博士研究生.主要研究方向为自适应信号处理. E-mail:xialulee@sina.com乔晓林 男,1948年9月出生于内蒙古赤峰市.现为哈尔滨工业大学(威海)信息工程研究所教授、博士生导师.主要研究方向为新体制雷达.
  • 基金资助:

    山东省自然科学基金(No.ZR2012FQ007);国家自然科学基金(No.61371181)

Designing Phase Coded Waveforms with Zero Autocorrelation Zone

LI Feng-cong, ZHAO Yi-nan, QIAO Xiao-lin   

  1. School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, China
  • Received:2012-11-29 Revised:2013-03-06 Online:2013-12-25 Published:2013-12-25

摘要: 本文研究在设定区间具有极低自相关幅值的相位编码波形设计方法,可用于雷达、声呐和通信系统进行干扰抑制和信号同步等.提出了一种基于功率谱逼近的波形设计算法.根据自相关与功率谱的傅立叶变换对关系,将自相关设计指标转换为功率谱设计指标;利用时、频域交替变换投影方法,且在迭代过程中动态构造理想序列功率谱,使设计波形的功率谱逐步逼近理想波形的功率谱,最终实现所期望的波形.与通用的非线性规划相比,该算法无需计算导数,内存消耗小,且迭代过程可由FFT高效实现.

关键词: 波形设计, 相位编码, 自相关旁瓣, 功率谱逼近

Abstract: This paper discusses the design of phase coded waveforms with ultra-low autocorrelation sidelobes in desired intervals.These waveforms can be used as interference suppression and signal synchronization waveforms for radar,sonar and communication systems.An algorithm based on power spectral density (PSD) approximation is proposed.According to the relationship between aperiodic autocorrelation sequence and the waveform PSD,the autocorrelation design object is translated into a PSD design object.The method transforms and projects the design waveform in the time and the frequency domain iteratively.Thus the PSD of the design waveform approximates the ideal PSD iteratively in order to generate the desired waveform.Compared with the general nonlinear programming methods,this method is derivative-free,thus requires less computer memory,and the iteration can be implemented by FFT efficiently.

Key words: waveform design, phase code, autocorrelation sidelobe, power spectral density approximation

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