基于固定与对数频偏的频率分集阵列雷达波束特性研究
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摘要
常规频率分集阵列(FDA)雷达相较于传统相位控制阵列雷达具备独特的距离-角度均相关的波束特性,近年来多种不同形式的FDA雷达得到了广泛关注与深入研究,文中对基于固定频偏和对数频偏的FDA雷达波束特性进行了较为详细的分析,利用MATLAB对两种形式的FDA雷达波束特性进行了仿真与比较。结果表明,通过改变阵元间的频偏形式、频偏量大小等,能有针对性地形成满足雷达不同探测需求的FDA雷达波束特性,能适应多变的探测环境和抑制干扰、提高目标探测能力。
Compared with the traditional phased-array radar,frequency diverse array( FDA) radar possesses the distinctive rangeangle-dependent beampattern. In recent years,much attention has been paid to FDA radar and deep research has been carried out.In this paper,detailed analysis of FDA radar beampattern of uniform and logarithmically increasing frequency offset has been carried out,MATLAB simulation has been fulfilled,and comparison has been made. It can be inferred from the result that by changing the form of frequency offset,different FDA radar beampattern can be formed,which can satisfy the different detecting demand of radar,adapt to the varying environment,reject interference,and improve the detecting ability of target.
Compared with the traditional phased-array radar,frequency diverse array( FDA) radar possesses the distinctive rangeangle-dependent beampattern. In recent years,much attention has been paid to FDA radar and deep research has been carried out.In this paper,detailed analysis of FDA radar beampattern of uniform and logarithmically increasing frequency offset has been carried out,MATLAB simulation has been fulfilled,and comparison has been made. It can be inferred from the result that by changing the form of frequency offset,different FDA radar beampattern can be formed,which can satisfy the different detecting demand of radar,adapt to the varying environment,reject interference,and improve the detecting ability of target.
引文
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[2]SECMEN M,DEMIR S,HIZAL A,et al.Frequency diverse array antenna with periodic time modulated pattern in range and angle[C]//IEEE Radar Conference.Boston,MA:IEEE Press,2007:427-430.
[3]ANTONIK P,WICKS M C,GRIFFITHS H D,et al.Multimission,multi-mode waveform diversity[C]//IEEE Conference on Radar.Verona,NY:IEEE Press,2006:580-582.
[4]ZHUANG L,LIU X Z.Precisely beam steering for frequency diverse arrays based on frequency offset selection[C]//IEEE2009 International Radar Conference on‘Surveillance for a Safer World’.Bordeaux,France:IEEE Press,2009:1-4.
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[8]WANG W Q.Range-angle dependent transmit beampattern synthesis for linear frequency diverse arrays[J].IEEE Transactions on Antennas and Propagation,2014,61(8):4073-4081.
[9]KHAN W,QURESHI I M.Frequency diverse array radar with time dependent frequency offset[J].IEEE Antennas and Wireless Propagation Letters,2014,13:758-761.
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[12]王侃,王真.大型电扫相控阵雷达的天线方向图测试[J].现代雷达,2015,37(8):55-57.WANG Kan,WANG Zhen.Measurement for antenna pattern of large electronic-scan phased radar[J].Modern Radar,2015,37(8):55-57.
[13]张福丹.频率分集阵列雷达波束控制及应用研究[D].南京:南京航空航天大学,2012.ZHANG Fudan.Frequency diverse array radar beam control and application research[D].Nanjing:Nanjing University of Aeronautics and Astronautics,2012.
[14]郑昱.基于频率分集阵列的波束形成研究[J].现代雷达,2015,37(8):29-32.ZHENG Yu.A study on the beam forming of frequency diverse array[J].Modern Radar,2015,37(8):29-32.
[15]韩晓东,孙清洋,舒汀,等.机载有源相控阵雷达抗干扰试验评估研究[J].现代雷达,2017,39(2):91-96.HAN Xiaodong,SUN Qingyang,SHU Ting,et al.A study on the anti-jamming test and evaluation of airborne active phased array radar[J].Modern Radar,201,39(2):91-96.
[2]SECMEN M,DEMIR S,HIZAL A,et al.Frequency diverse array antenna with periodic time modulated pattern in range and angle[C]//IEEE Radar Conference.Boston,MA:IEEE Press,2007:427-430.
[3]ANTONIK P,WICKS M C,GRIFFITHS H D,et al.Multimission,multi-mode waveform diversity[C]//IEEE Conference on Radar.Verona,NY:IEEE Press,2006:580-582.
[4]ZHUANG L,LIU X Z.Precisely beam steering for frequency diverse arrays based on frequency offset selection[C]//IEEE2009 International Radar Conference on‘Surveillance for a Safer World’.Bordeaux,France:IEEE Press,2009:1-4.
[5]CHEN Y G,LI Y T,WU Y H.Research on the linear frequency diverse array performance[J].IEEE 10th International Conference on Signal Processing,2010,114(43):2324-2327.
[6]ZHANG J J,SUPPAPPOLA A P.MIMO radar with frequency diversity[C]//IEEE 2009 International Waveform Diversity and Design Conference.Kissimmee,FL:IEEE Press,2009:208-212.
[7]SHANBHAG K V,DEB D,KULKARNI M.MIMO radar with spatial-frequency diversity for improved detection performance[C]//IEEE International Conference on Communication Control and Computer Technologies.Ramanathapuram,India:IEEE Press,2010:66-70.
[8]WANG W Q.Range-angle dependent transmit beampattern synthesis for linear frequency diverse arrays[J].IEEE Transactions on Antennas and Propagation,2014,61(8):4073-4081.
[9]KHAN W,QURESHI I M.Frequency diverse array radar with time dependent frequency offset[J].IEEE Antennas and Wireless Propagation Letters,2014,13:758-761.
[10]WANG W,SO H C,SHAO H.Nonuniform frequency diverse array for range-angle imaging of targets[J].IEEE Sensors Journal,2014,14(8):2469-2476.
[11]KHAN W,QURESHI I M,SAEED S.Frequency diverse array radar with logarithmically increasing frequency increment[J].IEEE Antennas and Wireless Propagation Letters,2015,14(6):499-502.
[12]王侃,王真.大型电扫相控阵雷达的天线方向图测试[J].现代雷达,2015,37(8):55-57.WANG Kan,WANG Zhen.Measurement for antenna pattern of large electronic-scan phased radar[J].Modern Radar,2015,37(8):55-57.
[13]张福丹.频率分集阵列雷达波束控制及应用研究[D].南京:南京航空航天大学,2012.ZHANG Fudan.Frequency diverse array radar beam control and application research[D].Nanjing:Nanjing University of Aeronautics and Astronautics,2012.
[14]郑昱.基于频率分集阵列的波束形成研究[J].现代雷达,2015,37(8):29-32.ZHENG Yu.A study on the beam forming of frequency diverse array[J].Modern Radar,2015,37(8):29-32.
[15]韩晓东,孙清洋,舒汀,等.机载有源相控阵雷达抗干扰试验评估研究[J].现代雷达,2017,39(2):91-96.HAN Xiaodong,SUN Qingyang,SHU Ting,et al.A study on the anti-jamming test and evaluation of airborne active phased array radar[J].Modern Radar,201,39(2):91-96.