前向散射雷达海面目标探测信号建模与分析
|
摘要
无人装备的兴起对当前海上防御造成了重大挑战,传统雷达成本高、系统复杂;前向散射雷达(FSR)具有结构简单、功耗小、成本低等优点,通过组网可以实现对海面要地目标大范围的探测监视。海浪的起伏变化和多径干扰会对海面目标的回波特性产生非常大的影响,本文分别给出了海浪起伏和多径干扰下目标的FSR回波信号模型,然后通过仿真实验对两种模型下目标的回波特性进行了比较,最终确定了多径干扰是低风速海浪下影响海面目标回波信号的最关键因素。
The rise of unmanned equipment poses major challenges to current maritime defense.Traditional radar has high cost and complex system,and Forward Scatter Radar(FSR)has the advantage of simple structure,low power consumption and low cost, The large range detection and monitoring of sea surface target can be realized through network. The wave fluctuation and multipath interference have great influence on the echo characteristics of the target.In this paper,the target signal model of FSR on sea wave is given first and then the signal model on multipath interference is given, and the echo characteristics of the target in the two models are simulated and compares by Matlab,the conclusion is that multipath interference is the most important fator affecting the target echo signal in low wind speed sea wave.
The rise of unmanned equipment poses major challenges to current maritime defense.Traditional radar has high cost and complex system,and Forward Scatter Radar(FSR)has the advantage of simple structure,low power consumption and low cost, The large range detection and monitoring of sea surface target can be realized through network. The wave fluctuation and multipath interference have great influence on the echo characteristics of the target.In this paper,the target signal model of FSR on sea wave is given first and then the signal model on multipath interference is given, and the echo characteristics of the target in the two models are simulated and compares by Matlab,the conclusion is that multipath interference is the most important fator affecting the target echo signal in low wind speed sea wave.
引文
[1] Glaser J I.Some results in the bistatic radar cross section (RCS) of complex objects[J].Proceedings of the IEEE,1989,77(5):639- 648.
[2] Chapurskii V V.Reconstruction of the images of objects on the basis of one-dimensional radio holograms synthesized for small diffraction angles[J].Radiotekhnika I Elektronika,1988,33:1747-1756.
[3] 张涛,张群,罗斌凤,等.基于时频分析的双基地前向散射雷达侧影成像[J].电子学报,2001,29(6):726-729.Zhang Tao,Zhang Qun,Luo Binfeng,et al.Bistatic forward scattering radar profile imaging based on time-frequency analysis[J].Acta Electronica Sinica,2001,29(6):726-729.(in Chinese)
[4] 张涛,罗永健,张群,等.SISAR侧影像的校正及特征提取[J].电子与信息学报,2002,24(11):1634-1640.Zhang Tao,Luo Yongjian,Zhang Qun,et al.Profile correction and feature extraction for SISAR[J].Journal of Electronics and Information Technology,2002,24(11):1634-1640.(in Chinese)
[5] Hu C,Liu C,Wang R,et al.Detection and SISAR Imaging of Aircrafts Using GNSS Forward Scatter Radar:Signal Modeling and Experimental Validation[J].IEEE Transactions on Aerospace and Electronic Systems,2017:1-1.
[6] Liu C,Hu C,Wang R,et al.GNSS forward scatter radar detection:Signal processing and experiment[C]//International Radar Symposium.IEEE,2017.
[7] Long T,Hu C,Mikhail C.Ground moving target signal model and power calculation in forward scattering micro radar[J].Science in China Series F (Information Science),2009,52(9):1704-1714.
[8] Cheng H,Antoniou M,Cherniakov M,et al.Quasi-optimal signal processing in ground Forward Scattering Radar[C]//IEEE Radar Conference,2008.
[9] Ritchie M,Fioranelli F,Woodbridge K,et al.Simultaneous data collection of small maritime targets using multistatic radar and forward scatter radar[J].IET Radar Sonar Navigation,2017,11(6):937-945.
[10] Behar V,Kabakchiev C,Garvanov I.Marine target classification and parameter estimation using Forward Scattering Radar[C]//International Radar Symposium,2012.
[11] Abdullah N F,Rashid N E A,Ibrahim I P,et al.FSR vehicles classification system based on hybrid neural network with different data extraction methods[C]//International Conference on Radar.IEEE,2018.
[12] Kabakchiev C,Garvanov I,Cherniakov M,et al.Bistatic UWB FSR CFAR for maritime target detection and estimation in the frequency domain[C]//International Radar Symposium,2011.
[13] 黄勇,陈小龙,关键.实测海尖峰特性分析及抑制方法[J].雷达学报,2015,4(3):334-342.Huang Yong,Chen Xiaolong,Guan Jian.Characteristics analysis and suppression method of measured sea spike[J].Journal of Radar,2015,4(3):334-342.(in Chinese)
[14] Chen Xiaolong,Guan Jian,Bao Zhonghua,et al.Detection and extraction of target with micro-motion in spiky sea clutter via short-time fractional Fourier transform[J].IEEE Transactions on Geoscience and Remote Sensing,2014,52(2):1002-1018.
[15] 许小剑.时变海面雷达目标散射现象学模型[M].北京:国防工业出版社,2013,2):28-29.Xu Xiaojian.Phenomenological model of radar target scattering from time-varying sea surface[M].Beijing:National Defense Industry Press,2013,2):28-29.(in Chinese)
[16] 朱洪华,蔡建立.不规则海浪的仿真[J].电脑知识与技术(学术交流),2007,3(13):202-203.Zhu Honghua,Cai Jianli.Simulation of irregular waves[J].Computer Knowledge and Technology (Academic Communication),2007,3(13):202-203.(in Chinese)
[17] 焦培南,张忠治.雷达环境与电波传播特性[M].北京:电子工业出版社,2007,1):11-15.Jiao Peinan,Zhang Zhongzhi.Radar environment and radio wave propagation characteristics[M].Beijing:Electronic Industry Press,2007,1):11-15.(in Chinese)
[2] Chapurskii V V.Reconstruction of the images of objects on the basis of one-dimensional radio holograms synthesized for small diffraction angles[J].Radiotekhnika I Elektronika,1988,33:1747-1756.
[3] 张涛,张群,罗斌凤,等.基于时频分析的双基地前向散射雷达侧影成像[J].电子学报,2001,29(6):726-729.Zhang Tao,Zhang Qun,Luo Binfeng,et al.Bistatic forward scattering radar profile imaging based on time-frequency analysis[J].Acta Electronica Sinica,2001,29(6):726-729.(in Chinese)
[4] 张涛,罗永健,张群,等.SISAR侧影像的校正及特征提取[J].电子与信息学报,2002,24(11):1634-1640.Zhang Tao,Luo Yongjian,Zhang Qun,et al.Profile correction and feature extraction for SISAR[J].Journal of Electronics and Information Technology,2002,24(11):1634-1640.(in Chinese)
[5] Hu C,Liu C,Wang R,et al.Detection and SISAR Imaging of Aircrafts Using GNSS Forward Scatter Radar:Signal Modeling and Experimental Validation[J].IEEE Transactions on Aerospace and Electronic Systems,2017:1-1.
[6] Liu C,Hu C,Wang R,et al.GNSS forward scatter radar detection:Signal processing and experiment[C]//International Radar Symposium.IEEE,2017.
[7] Long T,Hu C,Mikhail C.Ground moving target signal model and power calculation in forward scattering micro radar[J].Science in China Series F (Information Science),2009,52(9):1704-1714.
[8] Cheng H,Antoniou M,Cherniakov M,et al.Quasi-optimal signal processing in ground Forward Scattering Radar[C]//IEEE Radar Conference,2008.
[9] Ritchie M,Fioranelli F,Woodbridge K,et al.Simultaneous data collection of small maritime targets using multistatic radar and forward scatter radar[J].IET Radar Sonar Navigation,2017,11(6):937-945.
[10] Behar V,Kabakchiev C,Garvanov I.Marine target classification and parameter estimation using Forward Scattering Radar[C]//International Radar Symposium,2012.
[11] Abdullah N F,Rashid N E A,Ibrahim I P,et al.FSR vehicles classification system based on hybrid neural network with different data extraction methods[C]//International Conference on Radar.IEEE,2018.
[12] Kabakchiev C,Garvanov I,Cherniakov M,et al.Bistatic UWB FSR CFAR for maritime target detection and estimation in the frequency domain[C]//International Radar Symposium,2011.
[13] 黄勇,陈小龙,关键.实测海尖峰特性分析及抑制方法[J].雷达学报,2015,4(3):334-342.Huang Yong,Chen Xiaolong,Guan Jian.Characteristics analysis and suppression method of measured sea spike[J].Journal of Radar,2015,4(3):334-342.(in Chinese)
[14] Chen Xiaolong,Guan Jian,Bao Zhonghua,et al.Detection and extraction of target with micro-motion in spiky sea clutter via short-time fractional Fourier transform[J].IEEE Transactions on Geoscience and Remote Sensing,2014,52(2):1002-1018.
[15] 许小剑.时变海面雷达目标散射现象学模型[M].北京:国防工业出版社,2013,2):28-29.Xu Xiaojian.Phenomenological model of radar target scattering from time-varying sea surface[M].Beijing:National Defense Industry Press,2013,2):28-29.(in Chinese)
[16] 朱洪华,蔡建立.不规则海浪的仿真[J].电脑知识与技术(学术交流),2007,3(13):202-203.Zhu Honghua,Cai Jianli.Simulation of irregular waves[J].Computer Knowledge and Technology (Academic Communication),2007,3(13):202-203.(in Chinese)
[17] 焦培南,张忠治.雷达环境与电波传播特性[M].北京:电子工业出版社,2007,1):11-15.Jiao Peinan,Zhang Zhongzhi.Radar environment and radio wave propagation characteristics[M].Beijing:Electronic Industry Press,2007,1):11-15.(in Chinese)