基于OFDM-LFM信号的MIMO雷达通信一体化信号共享设计研究
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摘要
雷达通信一体化具有频谱利用率高、设备少等优势,该文在OFDM-LFM MIMO雷达的基础上,通过改变每个阵元发射信号的初始频率实现了雷达通信一体化。通信接收端通过判别信号的频率实现信息解调;雷达接收端通过时域频谱拼接实现信号合成,达到与传统OFDM-LFM MIMO雷达一样的距离分辨率。该方法将数据嵌入到发射信号中,改变了发射信号的初始频率,但没有影响信号之间的正交性。因此,该方法没有改变MIMO雷达的全向方向图,同时也使得通信方向是全向的。仿真实验表明了该方法在雷达和通信两个方面的有效性。
Integration of radar and communication on the electronic war platform is an effective method to reduce volume and enhance spectrum usage and efficiency. A transmitted pattern based on OFDM-LFM MIMO radar is designed to realize the integration of radar and communication by changing initial frequency. The communication receiver interpretation of the bit is based on the initial frequency of the signal. In radar receiver, the same range resolution as tradition OFDM-LFM MIMO radar can be get with get the time domain synthetic bandwidth methods. The proposed method changes the initial frequency without changing the omnidirectional pattern because the orthogonal transmitted signals are nonoverlapping in the spectrum.Simulation examples are provided for performance evaluation and to demonstrate the effectiveness of the proposed information embedding technique.
Integration of radar and communication on the electronic war platform is an effective method to reduce volume and enhance spectrum usage and efficiency. A transmitted pattern based on OFDM-LFM MIMO radar is designed to realize the integration of radar and communication by changing initial frequency. The communication receiver interpretation of the bit is based on the initial frequency of the signal. In radar receiver, the same range resolution as tradition OFDM-LFM MIMO radar can be get with get the time domain synthetic bandwidth methods. The proposed method changes the initial frequency without changing the omnidirectional pattern because the orthogonal transmitted signals are nonoverlapping in the spectrum.Simulation examples are provided for performance evaluation and to demonstrate the effectiveness of the proposed information embedding technique.
引文
[1]GRIFFITHS H,BLUNT S,COHEN L,et al.Challenge problems in spectrum engineering and waveform diversity[C].2013 IEEE Radar Conference,Ottawa,Canada,2013:1-5.doi:10.1109/RADAR.2013.6586140.
[2]BLUNT S D,YATHAM P,and STILES J.Intrapulse radar-embedded communications[J].IEEE Transactions on Aerospace and Electronic Systems,2010,46(3):1185-1200.doi:10.1109/TAES.2010.5545182.
[3]BLUNT S D,COOK M R,and STILES J.Embedding information into radar emissions via waveform implementation[C].2010 International Waveform Diversity and Design Conference,Niagara Falls,USA,2010:000195-000199.doi:10.1109/WDD.2010.5592502.
[4]CHEN Xingbo,WANG Xiaomo,XU Shanfeng,et al.Anovel radar waveform compatible with communication[C].2011 International Conference on Computational ProblemSolving,Chengdu,China,2011:177-181.doi:10.1109/ICCPS.2011.6092272.
[5]李晓柏,杨瑞娟,陈新永,等.基于分数阶傅里叶变换的雷达通信一体化信号共享研究[J].信号处理,2012,28(4):487-494.doi:10.3969/j.issn.1003-0530.2012.04.004.LI Xiaobai,YANG Ruijuan,CHEN Xinyong,et al.The sharing signal for integrated radar and communication based on FRFT[J].Signal Processing,2012,28(4):487-494.doi:10.3969/j.issn.1003-0530.2012.04.004.
[6]杨代明.MIMO通信系统的研究[D].[博士论文],复旦大学,2004.YANG Daiming.On the study of MIMO communication system[D].[Ph.D.dissertation],Fudan University,2004.
[7]LI Jian and STOICA P.MIMO radar with colocated antennas[J].IEEE Signal Processing Magazine,2007,24(5):106-114.doi:10.1109/MSP.2007.904812.
[8]HASSANIEN A,AMIN M G,ZHANG Y D,et al.A dual function radar-communications system using sidelobe control and waveform diversity[C].2015 IEEE Radar Conference,Arlington,USA,2015:1260-1263.doi:10.1109/RADAR.2015.7131188.
[9]HASSANIEN A,AMIN M G,ZHANG Y D,et al.Dualfunction radar-communications using phase-rotational invariance[C].2015 23rd European Signal Processing Conference,Nice,France,2015:1346-1350.doi:10.1109/EUSIPCO.2015.7362603.
[10]HASSANIEN A,HIMED B,and RIGLING B D.A dualfunction MIMO radar-communications system using frequency-hopping waveforms[C].2017 IEEE Radar Conference,Seattle,USA,2017:1721-1725.doi:10.1109/RADAR.2017.7944485.
[11]QIAN Junhui,LOPS M,ZHENG Le,et al.Joint design for co-existence of MIMO radar and MIMO communication system[C].2017 51st Asilomar Conference on Signals,Systems,and Computers,Pacific Grove,USA,2017:568-572.doi:10.1109/ACSSC.2017.8335405.
[12]QIAN Junhui,LOPS M,ZHENG Le,et al.Joint system design for Co-existence of MIMO radar and MIMOcommunication[J].IEEE Transactions on Signal Processing,2018,66(13):3504-3519.doi:10.1109/TSP.2018.2831624.
[13]LI Bo and PETROPULU A P.Joint transmit designs for coexistence of MIMO wireless communications and sparse sensing radars in clutter[J].IEEE Transactions on Aerospace and Electronic Systems,2017,53(6):2846-2864.doi:10.1109/TAES.2017.2717518.
[14]NOWAK M J,ZHANG Zhiping,LOMONTE L,et al.Mixed-modulated linear frequency modulated radarcommunications[J].IET Radar,Sonar&Navigation,2017,11(2):313-320.doi:10.1049/iet-rsn.2016.0249.
[15]杨明磊,张守宏,陈伯孝,等.多载频MIMO雷达的一种新的信号处理方法[J].电子与信息学报,2009,31(1):147-151.doi:10.3724/SP.J.1146.2008.00045.YANG Minglei,ZHANG Shouhong,CHEN Baixiao,et al.Anovel signal processing approach for the multi-carrier MIMO radar[J].Journal of Electronics&Information Technology,2009,31(1):147-151.doi:10.3724/SP.J.1146.2008.00045.
[16]刘波.MIMO雷达正交波形设计及信号处理研究[D].[博士论文],电子科技大学,2008.LIU Bo.Research on Generation of orthogonal waveform and signal processing for MIMO radar[D].[Ph.D.dissertation],University of Electronic Science and Technology of China,2008.
[17]白霞,毛士艺,袁运能.时域合成带宽方法:一种0.1米分辨率SAR技术[J].电子学报,2006,34(3):472-477.doi:10.3321/j.issn:0372-2112.2006.03.020.BAI Xia,MAO Shiyi,and YUAN Yunneng.Time domain synthetic bandwidth methods:A 0.1 m resolution SARtechnique[J].Acta Electronica Sinica,2006,34(3):472-477.doi:10.3321/j.issn:0372-2112.2006.03.020.
[18]樊昌信,曹丽娜.通信原理[M].北京:国防工业出版社,2001:180-220.FAN Changxin and CAO Lina.Communication Theory[M].Beijing:National Defense Industry Press,2001:180-220.
[2]BLUNT S D,YATHAM P,and STILES J.Intrapulse radar-embedded communications[J].IEEE Transactions on Aerospace and Electronic Systems,2010,46(3):1185-1200.doi:10.1109/TAES.2010.5545182.
[3]BLUNT S D,COOK M R,and STILES J.Embedding information into radar emissions via waveform implementation[C].2010 International Waveform Diversity and Design Conference,Niagara Falls,USA,2010:000195-000199.doi:10.1109/WDD.2010.5592502.
[4]CHEN Xingbo,WANG Xiaomo,XU Shanfeng,et al.Anovel radar waveform compatible with communication[C].2011 International Conference on Computational ProblemSolving,Chengdu,China,2011:177-181.doi:10.1109/ICCPS.2011.6092272.
[5]李晓柏,杨瑞娟,陈新永,等.基于分数阶傅里叶变换的雷达通信一体化信号共享研究[J].信号处理,2012,28(4):487-494.doi:10.3969/j.issn.1003-0530.2012.04.004.LI Xiaobai,YANG Ruijuan,CHEN Xinyong,et al.The sharing signal for integrated radar and communication based on FRFT[J].Signal Processing,2012,28(4):487-494.doi:10.3969/j.issn.1003-0530.2012.04.004.
[6]杨代明.MIMO通信系统的研究[D].[博士论文],复旦大学,2004.YANG Daiming.On the study of MIMO communication system[D].[Ph.D.dissertation],Fudan University,2004.
[7]LI Jian and STOICA P.MIMO radar with colocated antennas[J].IEEE Signal Processing Magazine,2007,24(5):106-114.doi:10.1109/MSP.2007.904812.
[8]HASSANIEN A,AMIN M G,ZHANG Y D,et al.A dual function radar-communications system using sidelobe control and waveform diversity[C].2015 IEEE Radar Conference,Arlington,USA,2015:1260-1263.doi:10.1109/RADAR.2015.7131188.
[9]HASSANIEN A,AMIN M G,ZHANG Y D,et al.Dualfunction radar-communications using phase-rotational invariance[C].2015 23rd European Signal Processing Conference,Nice,France,2015:1346-1350.doi:10.1109/EUSIPCO.2015.7362603.
[10]HASSANIEN A,HIMED B,and RIGLING B D.A dualfunction MIMO radar-communications system using frequency-hopping waveforms[C].2017 IEEE Radar Conference,Seattle,USA,2017:1721-1725.doi:10.1109/RADAR.2017.7944485.
[11]QIAN Junhui,LOPS M,ZHENG Le,et al.Joint design for co-existence of MIMO radar and MIMO communication system[C].2017 51st Asilomar Conference on Signals,Systems,and Computers,Pacific Grove,USA,2017:568-572.doi:10.1109/ACSSC.2017.8335405.
[12]QIAN Junhui,LOPS M,ZHENG Le,et al.Joint system design for Co-existence of MIMO radar and MIMOcommunication[J].IEEE Transactions on Signal Processing,2018,66(13):3504-3519.doi:10.1109/TSP.2018.2831624.
[13]LI Bo and PETROPULU A P.Joint transmit designs for coexistence of MIMO wireless communications and sparse sensing radars in clutter[J].IEEE Transactions on Aerospace and Electronic Systems,2017,53(6):2846-2864.doi:10.1109/TAES.2017.2717518.
[14]NOWAK M J,ZHANG Zhiping,LOMONTE L,et al.Mixed-modulated linear frequency modulated radarcommunications[J].IET Radar,Sonar&Navigation,2017,11(2):313-320.doi:10.1049/iet-rsn.2016.0249.
[15]杨明磊,张守宏,陈伯孝,等.多载频MIMO雷达的一种新的信号处理方法[J].电子与信息学报,2009,31(1):147-151.doi:10.3724/SP.J.1146.2008.00045.YANG Minglei,ZHANG Shouhong,CHEN Baixiao,et al.Anovel signal processing approach for the multi-carrier MIMO radar[J].Journal of Electronics&Information Technology,2009,31(1):147-151.doi:10.3724/SP.J.1146.2008.00045.
[16]刘波.MIMO雷达正交波形设计及信号处理研究[D].[博士论文],电子科技大学,2008.LIU Bo.Research on Generation of orthogonal waveform and signal processing for MIMO radar[D].[Ph.D.dissertation],University of Electronic Science and Technology of China,2008.
[17]白霞,毛士艺,袁运能.时域合成带宽方法:一种0.1米分辨率SAR技术[J].电子学报,2006,34(3):472-477.doi:10.3321/j.issn:0372-2112.2006.03.020.BAI Xia,MAO Shiyi,and YUAN Yunneng.Time domain synthetic bandwidth methods:A 0.1 m resolution SARtechnique[J].Acta Electronica Sinica,2006,34(3):472-477.doi:10.3321/j.issn:0372-2112.2006.03.020.
[18]樊昌信,曹丽娜.通信原理[M].北京:国防工业出版社,2001:180-220.FAN Changxin and CAO Lina.Communication Theory[M].Beijing:National Defense Industry Press,2001:180-220.