Location method of near distance electromagnetic radiation source based on compressive sensing
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摘要:
提出了一种近距离电磁辐射源定位方法，针对常规多通道阵列系统复杂、硬件成本高、体积大等弊端，提出单天线单通道运动虚拟阵列系统，实现近场定位功能。在此基础上，提出利用辐射源在被测区域空间位置上的稀疏性，采用不驻停运动采样，并结合压缩感知算法，用较少的采样数据重构计算得到辐射源数量与位置。在保证定位精度的前提下减少了采样数据量，并消除了阵元多次采样的时间延迟可能造成的误差影响。经过仿真验证了方法的可行性后，设计了用于实际测试的系统并进行实验，取得了良好的效果。
Abstract:A locating method of near distance electromagnetic radiation source is proposed in this paper. To avoid the disadvantages of complexity, high hardware cost and large volume of the conventional multi-channel array system, a single antenna motion virtual array system is proposed to realize the function of the near-field location. On the basis, the sparsity of the radiation source in the spatial position of the measured area is proposed. The number and position of the radiation sources are reconstructed with less sampling data by using the non-stop motion sampling and the compressive sensing method. The sampling data quantity is reduced under the premise of ensuring the location accuracy, and the error effect caused by the time delay of the multiple sampling in every array element is eliminated. The feasibility of the method is verified by simulation. Then the system is designed for the actual test and good results have been achieved in the experiment.
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Key words:
- electromagnetic interference /
- fault location /
- near-field /
- virtual array /
- compressive sensing
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图 1 单天线单通道近场定位系统
Figure 1. Single antenna and single channelnear-field location system
图 2 近场定位空间稀疏性示意图
Figure 2. Schematic diagram of spatial sparsityof near-field location
图 6 不同目标源数量在不同虚拟阵元数下的定位成功率
Figure 6. Location success rate of different source quantity under different amount of virtual array elements
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[1] 刘尚合,孙国至.复杂电磁环境内涵及效应分析[J].装备指挥技术学院学报,2008,19(1):1-5. http://www.cnki.com.cn/Article/CJFDTOTAL-XYZH200801000.htmLIU S H,SUN G Z.Analysis of the concept and effects of complex electromagnetic environment[J].Journal of the Academy of Equipment Command & Technology, 2008,19(1):1-5(in Chinese). http://www.cnki.com.cn/Article/CJFDTOTAL-XYZH200801000.htm [2] CERRI G,DE L R,DELLA N L,et al.Fault location on shielded cables:Electromagnetic modelling and improved measurement data processing[J].IEE Proceedings-Science,Measurement and Technology,2005,152(5):217-226. doi: 10.1049/ip-smt:20045035 [3] KODALI V P.工程电磁兼容:原理、测试、技术工艺及计算机模型[M].陈淑凤,高攸纲,苏东林,等译.北京:人民邮电出版社,2006:156-162.KODALI V P.Engineering electromagnetic compatibility:Principles,measurements,technologies,and computer models[M].CHEN S F,GAO Y G,SU D L,et al,translated.Beijing:People's Posts and Telecommunications Publishing House,2006:156-162(in Chinese). [4] 贾翠霞.电子信息系统电磁兼容性测试研究[J].中国电子科学研究院学报,2005(2):33-36. http://www.cnki.com.cn/Article/CJFDTOTAL-KJPL200502007.htmJIA C X.Research on electromagnetic compatibility testing of electronic information system[J].Journal of China Academy of Electronics and Information Technology,2005(2):33-36(in Chinese). http://www.cnki.com.cn/Article/CJFDTOTAL-KJPL200502007.htm [5] MICHEL M.电磁干扰排查及故障解决的电磁兼容技术[M].刘萍,魏东兴,藏瑞华,等译.北京:机械工业出版社,2002:27-30. http://www.doc88.com/p-0416182206859.htmlMICHEL M.Electromagnetic interference and electromagnetic compatibility technology troubleshooting[M].LIU P,WEI D X,ZANG R H,et al,transtated.Beijing:Mechanical Industry Publishing House,2002:27-30(in Chinese). http://www.doc88.com/p-0416182206859.html [6] MARTINEZ-LORENZO J A,RAPPAPORT C M,QUIVIRA F.Physical limitations on detecting tunnels using underground-focusing spotlight synthetic aperture radar[J].IEEE Transactions on Geoscience & Remote Sensing,2011,49(1):65-70. https://www.researchgate.net/publication/224168326_Physical_Limitations_on_Detecting_Tunnels_Using_Underground-Focusing_Spotlight_Synthetic_Aperture_Radar [7] 陈少刚,谢树果,叶知秋.单通道阵列近场信源定位方法研究[C]//第十二届全国电波传播学术讨论年会.新乡:中国电子学会,2013,28:404-407.CHEN S G,XIE S G,YE Z Q.Research on near field source localization for single channel array[C]//12th Chinese National Symposium on Radio Propagation.Xinxiang:Chinese Institute of Electronics,2013,28:404-407(in Chinese). [8] MARTINEZ-LORENZO J A,QUIVIRA F,RAPPAPORT C M.SAR imaging of suicide bombers wearing concealed explosive threats[J].Progress in Electromagnetics Research,2012,125(1):255-272. http://www.oalib.com/paper/1723333 [9] ZENG X Y,XIE S G,HAO X C,et al.A near-field radiation source localization method based on passive synthetic arrays using single channel receiver[C]//10th Academic Forum for Graduate Students at Beihang University.Beijing:Beihang University,2014. [10] 蔡晶晶,鲍丹,李鹏,等.强约束优化降维MUSIC二维DOA估计[J].电子与信息学报,2014(5):1113-1118. http://www.cnki.com.cn/Article/CJFDTOTAL-DZYX201405016.htmCAI J J,BAO D,LI P,et al.Two-dimensional DOA Estimation using reduced-dimensional MUSIC algorithm with strong-constraint optimization[J].Journal of Electronics & Information Technology,2014(5):1113-1118(in Chinese). http://www.cnki.com.cn/Article/CJFDTOTAL-DZYX201405016.htm [11] BI D,XIE Y,LI X,et al.A sparsity basis selection method for compressed sensing[J].IEEE Signal Processing Letters,2015,22(10):1738-1742. doi: 10.1109/LSP.2015.2429748 [12] 李珅,马彩文,李艳,等.压缩感知重构算法综述[J].红外与激光工程,2013,42(S01):225-232. http://www.cnki.com.cn/Article/CJFDTOTAL-HWYJ2013S1044.htmLI K,MA C W,LI Y,et al.Survey on reconstruction algorithm based on compressive sensing[J].Infrared and Laser Engineering,2013,42(S01):225-232(in Chinese). http://www.cnki.com.cn/Article/CJFDTOTAL-HWYJ2013S1044.htm [13] CANDES E K,TAO T.Decoding by linear programming[J].IEEE Transactions on Information Theory,2005,51(12):4203-4215. doi: 10.1109/TIT.2005.858979 [14] TROPP J A,GILBERT A C.Signal recovery from random measurements via orthogonal matching pursuit[J].IEEE Transactions on Information Theory,2007,53(12):4655-4666. doi: 10.1109/TIT.2007.909108 [15] 白凌云,梁志毅,徐志军.基于压缩感知信号重建的自适应正交多匹配追踪算法[J].计算机应用研究,2011,28(11):4060-4063. http://www.cnki.com.cn/Article/CJFDTOTAL-JSYJ201111016.htmBAI L Y,LIANG Z Y,XU Z J.Adaptive orthogonal multi matching pursuit algorithm for signal reconstruction based on compressive sensing[J].Application Research of Computers,2011,28(11):4060-4063(in Chinese). http://www.cnki.com.cn/Article/CJFDTOTAL-JSYJ201111016.htm -
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