基于小波包的雷达波形设计与性能分析
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摘要
研究了如何利用小波包的相关理论来设计雷达波形,从小波和小波包的基本理论入手,通过分析已有的小波包的特性,提出了级联小波包来构造雷达波形的设计方法。使用自相关函数、模糊函数和时频分布等分析工具,对设计的雷达波形进行了性能分析。理论分析和计算机仿真结果均表明,基于小波包设计的雷达波形与传统的线性调频信号(LFM)相比具有更低的压缩旁瓣和更复杂的脉内特征。文中的研究成果能够为雷达的波形设计提供一种可行的方法和思路。
How to use the wavelet packet theory to design radar waveform is studied in this paper.Based on the basic theory of wavelet and wavelet packet,the design method of cascading the wavelet packets to construct the radar waveform is proposed,through analyzing the characteristics of the wavelet packet.Three kinds of analysis tools,including the autocorrelation function,the ambiguity function and time-frequency distribution,are used to complete the performance analysis of the proposed radar waveform.The theoretical analysis and computer simulation results verify that the proposed radar waveform based on the wavelet packets shows significant advantages over conventional linear frequency modulated(LFM) for effective range resolution and intra pulse modulation characteristics.The research results of this paper can provide a new and practical idea for the design of radar waveform.
How to use the wavelet packet theory to design radar waveform is studied in this paper.Based on the basic theory of wavelet and wavelet packet,the design method of cascading the wavelet packets to construct the radar waveform is proposed,through analyzing the characteristics of the wavelet packet.Three kinds of analysis tools,including the autocorrelation function,the ambiguity function and time-frequency distribution,are used to complete the performance analysis of the proposed radar waveform.The theoretical analysis and computer simulation results verify that the proposed radar waveform based on the wavelet packets shows significant advantages over conventional linear frequency modulated(LFM) for effective range resolution and intra pulse modulation characteristics.The research results of this paper can provide a new and practical idea for the design of radar waveform.
引文
[1]孔玲军.MATLAB小波分析超级学习手册[M].北京:人民邮电出版社,2014.KONG Lingjun.A super learning handbook of MATLAB wavelet analysis[M].Beijing:The Posts and Telecommunication Press,2014.
[2]MOHSENI R,SHEIKHI A,SHIRAZI M.UWB radars based on wavelet packet OFDM signals[C]//IEEE International Conference on Ultra-Wideband.Hannover,Germany:IEEE Press,2008.
[3]LESTER G.A radar waveform processing utilization of wavelets[C]//IEEE SP International Symposium on Time-Frequency and Time-Scale Analysis.Philadelphia,PA:IEEE Press,1994.
[4]YIN F,LIN M.Wavelet transform with application on radar signal synthesis[J].IEEE CIE International Conference of Radar.Beijing,China:IEEE Press,1996:293-296.
[5]WANG N,ZHANG Y,WU S.Radar waveform design and target detection using wavelets[C]//IEEE CIE International Conference of Radar.Beijing,China:IEEE Press,2001.
[6]郭凤霞,戚俊,陈斐楠.基于小波变换的声雷达模拟信号去噪研究[J].现代雷达,2016,38(3):86-90.GUO Fengxia,QI Jun,CHEN Feinan.Denoising of analog signals of acoustic radar based on wavelet transform[J].Modern Radar,2016,38(3):86-90.
[7]胡昌华,李国华,周涛.基于MATLAB 7.x的系统分析与设计-小波分析[M].3版.西安:西安电子科技大学出版社,2008.HU Changhua,LI Guohua,ZHOU Tao.The system analysis and design based on MATLAB 7.x-wavelet analysis[M].3rd ed.Xi'an:Xidian University Press,2008.
[8]CAO S Y,ZHENG Y F,EWING R L.Wavelet-based waveform for effective sidelobe suppression in radar signal[J].IEEE Transactions on Aerospace and Electronic Systems,2014,50(1):265-284.
[9]MAHAFZA B R,ELSHERBENI A.雷达系统设计MATLAB仿真[M].北京:电子工业出版社,2014.MAHAFZA B R,ELSHERBENI A.Matlab simulation for radar systems design[M].Beijing:Publishing House of Electronics Industry,2014.
[10]朱晓华.雷达信号分析与处理[M].北京:国防工业出版社,2011.ZHU Xiaohua.Radar signal analysis and processing[M].Beijing:Nation Defense Industy Press,2011.
[2]MOHSENI R,SHEIKHI A,SHIRAZI M.UWB radars based on wavelet packet OFDM signals[C]//IEEE International Conference on Ultra-Wideband.Hannover,Germany:IEEE Press,2008.
[3]LESTER G.A radar waveform processing utilization of wavelets[C]//IEEE SP International Symposium on Time-Frequency and Time-Scale Analysis.Philadelphia,PA:IEEE Press,1994.
[4]YIN F,LIN M.Wavelet transform with application on radar signal synthesis[J].IEEE CIE International Conference of Radar.Beijing,China:IEEE Press,1996:293-296.
[5]WANG N,ZHANG Y,WU S.Radar waveform design and target detection using wavelets[C]//IEEE CIE International Conference of Radar.Beijing,China:IEEE Press,2001.
[6]郭凤霞,戚俊,陈斐楠.基于小波变换的声雷达模拟信号去噪研究[J].现代雷达,2016,38(3):86-90.GUO Fengxia,QI Jun,CHEN Feinan.Denoising of analog signals of acoustic radar based on wavelet transform[J].Modern Radar,2016,38(3):86-90.
[7]胡昌华,李国华,周涛.基于MATLAB 7.x的系统分析与设计-小波分析[M].3版.西安:西安电子科技大学出版社,2008.HU Changhua,LI Guohua,ZHOU Tao.The system analysis and design based on MATLAB 7.x-wavelet analysis[M].3rd ed.Xi'an:Xidian University Press,2008.
[8]CAO S Y,ZHENG Y F,EWING R L.Wavelet-based waveform for effective sidelobe suppression in radar signal[J].IEEE Transactions on Aerospace and Electronic Systems,2014,50(1):265-284.
[9]MAHAFZA B R,ELSHERBENI A.雷达系统设计MATLAB仿真[M].北京:电子工业出版社,2014.MAHAFZA B R,ELSHERBENI A.Matlab simulation for radar systems design[M].Beijing:Publishing House of Electronics Industry,2014.
[10]朱晓华.雷达信号分析与处理[M].北京:国防工业出版社,2011.ZHU Xiaohua.Radar signal analysis and processing[M].Beijing:Nation Defense Industy Press,2011.