参数调制多载波雷达通信共享信号设计
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摘要
雷达通信一体化是减少电子平台体积与电磁干扰的一种有效途径,而共享信号的研究是实现雷达通信一体化的关键技术。该文提出了一种基于Chirp信号的多载波雷达通信共享信号,其主载波采用唯一Chirp信号实现雷达功能,副载波通过改变调频率和初始频率参数组合的Chirp信号调制通信信息。分析了共享信号的模糊函数以及参数设计方法,并对其处理过程及系统性能进行了研究。仿真结果表明,该信号具有较低误码率和高稳健性特性,使用该共享信号可在微量降低雷达性能的前提下实现通信数据的传输。
Communication signals are vital to the implementation of integrated radar and communication,which is an effective way to reduce platform volume and electromagnetic interference. In this paper, an integrated radar and communication signal based on multicarrier parameter modulation chirp signal is proposed. Its main carrier adopts the unique chirp signal to implement radar function, while communication information is modulated by the subcarrier with different chirp rates and initial frequency chirp signal. The signal property is analyzed by ambiguity function, and the processing and system performance are studied.Finally, simulation results demonstrate that the proposed sharing signal has a low symbol error rate and high robustness, and communication data transmission can be implemented by slightly degrading the radars performance.
Communication signals are vital to the implementation of integrated radar and communication,which is an effective way to reduce platform volume and electromagnetic interference. In this paper, an integrated radar and communication signal based on multicarrier parameter modulation chirp signal is proposed. Its main carrier adopts the unique chirp signal to implement radar function, while communication information is modulated by the subcarrier with different chirp rates and initial frequency chirp signal. The signal property is analyzed by ambiguity function, and the processing and system performance are studied.Finally, simulation results demonstrate that the proposed sharing signal has a low symbol error rate and high robustness, and communication data transmission can be implemented by slightly degrading the radars performance.
引文
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[12]HU F,CUI G L,YE W,et al.Integrated radar and communication system based on stepped frequency continuous waveform[C].Proceedings of 2015 IEEE Radar Conference,Arlington,VA,USA,2015:1084-1087.doi:10.1109/RADAR.2015.7131155.
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[14]LIU T,CAO N,MAO M H,et al.Waveform design and optimization for OFDM radar signal based on fractional Fourier transform[C].Proceedings of the 2nd International Conference on Systems and Informatics,Shanghai,China,2014:724-729.doi:10.1109/ICSAI.2014.7009380.
[15]陶然,齐林,王越.分数阶Fourier变换的原理与应用[M].北京:清华大学出版社,2004.TAO Ran,QI Lin,and WANG Yue.Theory and Applications of the Fractional Fourier Transform[M].Beijing:Tsinghua University Press,2004.
[16]李锋,朱世华,荣玫.FRFT-OFDM系统中FRFT域变换角度的估计[J].电子与信息学报,2008,30(10):2427-2430.LI Feng,ZHU Shi-hua,and RONG Mei.Estimation of the angle parameter in FRFT domain for FRFT-OFDMsystems[J].Journal of Electronics&Information Technology,2008,30(10):2427-2430.
[17]樊昌信,曹丽娜.通信原理[M].第6版,北京:国防工业出版社,2008:213-233.FAN Chang-xin and CAO Li-na.Communication Principle[M].Sixth Edition,Beijing:National Defend Industry Press,2008:213-233.
[2]TAVIK G C,HILTERBRICK C L,EVINS J B,et al.The advanced multifunction RF concept[J].IEEE Transactions on Microwave Theory and Techniques,2005,53(3):1009-1020.doi:10.1109/TMTT.2005.843485.
[3]STURM C and WIESBECK W.Waveform design and signal processing aspects for fusion of wireless communications and radar sensing[J].Proceedings of the IEEE,2011,99(7):1236-1259.doi:10.1109/JPROC.2011.2131110.
[4]XU C C and CHEN T Q.Conception of“signal sharing”in integrated radar and jammer system and the integrated signal design[C].Proceedings of IEEE 2002 International Conference on Communications,Circuits and Systems and West Sino Expositions,Chengdu,China,2002:502-505.doi:10.1109/ICCCAS.2002.1180668.
[5]邹广超,刘以安,吴少鹏,等.雷达-通信一体化系统设计[J].计算机仿真,2011,28(8):1-4,32.doi:10.3969/j.issn.1006-9348.2011.08.001.ZOU Guang-chao,LIU Yi-an,WU Shao-peng,et al.Design of radar-communications integrated system[J].Computer Simulation,2011,28(8):1-4,32.doi:10.3969/j.issn.1006-9348.2011.08.001.
[6]李晓柏,杨瑞娟,程伟.基于频率调制的多载波Chirp信号雷达通信一体化研究[J].电子与信息学报,2013,35(2):406-412.doi:10.3724/SP.J.1146.2012.00567.LI Xiao-bai,YANG Rui-juan,and CHENG Wei.Integrated radar and communication based on multicarrier frequency modulation chirp signal[J].Journal of Electronics&Information Technology,2013,35(2):406-412.doi:10.3724/SP.J.1146.2012.00567.
[7]SIT Y L,STURM C,REICHARDT L,et al.The OFDMjoint radar-communication system:An overview[C].Proceedings of the 3rd International Conference on Advances in Satellite and Space Communications,Budapest,2011:69-74.
[8]CHEN X B,WANG X M,XU S F,et al.A novel radar waveform compatible with communication[C].Proceedings of 2011 International Conference on Computational Problem-Solving,Chengdu,China,2011:177-181.doi:10.1109/ICCPS.2011.6092272.
[9]李晓柏,杨瑞娟,程伟.基于Chirp信号的雷达通信一体化研究[J].雷达科学与技术,2012,10(2):180-186.doi:10.3969/j.issn.1672-2337.2012.02.012.LI Xiao-bai,YANG Rui-juan,and CHENG Wei.Integratedradar and communication based on chirp[J].Radar Scienceand Technology,2012,10(2):180-186.doi:10.3969/j.issn.1672-2337.2012.02.012.
[10]TAKASE H and SHINRIKI M.A dual-use system for radar and communication with complete complementary codes[C].Proceedings of the 11th International Radar Symposium,Vilnius,Lithuania,2010:1-4.
[11]ZHAO Z L and JIANG D F.A novel integrated radar and communication waveform based on LFM signal[C].Proceedings of the 5th International Conference on Electronics Information and Emergency Communication,Beijing,China,2015:219-223.doi:10.1109/ICEIEC.2015.7284525.
[12]HU F,CUI G L,YE W,et al.Integrated radar and communication system based on stepped frequency continuous waveform[C].Proceedings of 2015 IEEE Radar Conference,Arlington,VA,USA,2015:1084-1087.doi:10.1109/RADAR.2015.7131155.
[13]LIU L,TIAN J J,and LIU Z H.A parameter estimation method for moving target in stepped frequency radar[C].Proceedings of 2010 International Conference on Intelligent Computation Technology and Automation,Changsha,China,2010:289-292.doi:10.1109/ICICTA.2010.170.
[14]LIU T,CAO N,MAO M H,et al.Waveform design and optimization for OFDM radar signal based on fractional Fourier transform[C].Proceedings of the 2nd International Conference on Systems and Informatics,Shanghai,China,2014:724-729.doi:10.1109/ICSAI.2014.7009380.
[15]陶然,齐林,王越.分数阶Fourier变换的原理与应用[M].北京:清华大学出版社,2004.TAO Ran,QI Lin,and WANG Yue.Theory and Applications of the Fractional Fourier Transform[M].Beijing:Tsinghua University Press,2004.
[16]李锋,朱世华,荣玫.FRFT-OFDM系统中FRFT域变换角度的估计[J].电子与信息学报,2008,30(10):2427-2430.LI Feng,ZHU Shi-hua,and RONG Mei.Estimation of the angle parameter in FRFT domain for FRFT-OFDMsystems[J].Journal of Electronics&Information Technology,2008,30(10):2427-2430.
[17]樊昌信,曹丽娜.通信原理[M].第6版,北京:国防工业出版社,2008:213-233.FAN Chang-xin and CAO Li-na.Communication Principle[M].Sixth Edition,Beijing:National Defend Industry Press,2008:213-233.