基于快速S变换时频空间模型的电磁干扰复杂度评估方法
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摘要
针对复杂电磁环境电磁干扰复杂度定性与定量评估问题,该文提出一种基于快速S变换时频空间模型的复杂度评估方法。利用快速S变换方法同步提取时域占用度、频域占用度和能量占用度等评估指标,给出了具体计算方法。在此基础上建立快速S变换时频空间评估模型,将时域、频域和能量域3维向量的F范数和均方根作为电磁环境主观复杂度和客观复杂度评估指标,克服了传统电磁干扰复杂度评估独立参数定级不能全面反映电磁干扰整体特性的局限性。仿真结果表明,采用该模型能有效同步提取时频及能量评估特征参数,时频空间评估模型能精确反映整体电磁干扰特征;实验测试结果验证了本文所提评估方法的正确性。
For qualitative and quantitative complex evaluation problem of electromagnetic environment. This paper proposes a novel electromagnetic environment complex evaluation algorithm based on fast S-transformand time-frequency space model, which can count time-complex, frequency-complex and energy-complexsimultaneously. Meanwhile, the computation methods and concept of qualitative and quantitative evaluationdegree are introduced. To overcome the limitations of the traditional methods, F-norm and root-mean-squareare selected as two important evaluation indicators, which have the advantage in accurate evaluation.Simulation results show that the proposed method is accurate and effective to reflect the intensity degree ofelectromagnetic interference; Meanwhile, the interference experiment of bus card confirms the correctness of the time-frequency space model. The experimental test results verify the correctness of the mentioned evaluators.
For qualitative and quantitative complex evaluation problem of electromagnetic environment. This paper proposes a novel electromagnetic environment complex evaluation algorithm based on fast S-transformand time-frequency space model, which can count time-complex, frequency-complex and energy-complexsimultaneously. Meanwhile, the computation methods and concept of qualitative and quantitative evaluationdegree are introduced. To overcome the limitations of the traditional methods, F-norm and root-mean-squareare selected as two important evaluation indicators, which have the advantage in accurate evaluation.Simulation results show that the proposed method is accurate and effective to reflect the intensity degree ofelectromagnetic interference; Meanwhile, the interference experiment of bus card confirms the correctness of the time-frequency space model. The experimental test results verify the correctness of the mentioned evaluators.
引文
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[17]李文臣,张政超,陆静,等.电磁环境复杂度等级评估模型[J].中国电子科学研究院学报,2012,7(4):427-430.doi:10.3969/j.issn.1673-5692.2012.04.023.LI Wenchen,ZHANG Zhengchao,LU Jing,et al.Evaluation model of electromagnetic environment complexity classification[J].Journal of China Academy of Electronics and Information Technology,2012,7(4):427-430.doi:10.3969/j.issn.1673-5692.2012.04.023.
[18]王健,张江明,王瑞,等.论电磁环境的相对性与“接地气”的复杂度评估[J].电子与信息学报,2016,38(5):1249-1255.doi:10.11999/JEIT150947.WANG Jian,ZHANG Jiangming,WANG Rui,et al.Relativity of electromagnetic environment and down-toearth complexity evaluation[J].Journal of Electronics&Information Technology,2016,38(5):1249-1255.doi:10.11999/JEIT150947.
[2]李伟,魏光辉,潘晓东,等.复杂电磁环境下通信装备干扰预测方法[J].电子与信息学报,2017,39(11):2782-2789.doi:10.11999/JEIT170107.LI Wei,WEI Guanghui,PAN Xiaodong,et al.Interferenceprediction method of communication equipment undercomplex electromagnetic environment[J].Journal ofElectronics&Information Technology,2017,39(11):2782-2789.doi:10.11999/JEIT170107.
[3]TETLEY W.Analytical prediction of electromagnetic environments[J].IRE Transactions on Communications Systems,1961,9(2):175-185.doi:10.1109/TCOM.1961.1097669.
[4]JAEKEL B W.Description and classification of electromagnetic environments-revision of IEC 61000-2-5[C].IEEEInternational Symposium on Electromagnetic Compatibility,Detroit,USA,2008:1-4.
[5]尹成友.战场电磁环境分类与复杂性评估研究[J].信息对抗学术,2007,25(4):4-6.YIN Chengyou.The battlefield electromagnetic environment complexity of classification and evaluation research[J].Information Against Academic,2007,25(4):4-6.
[6]王志刚,王芳,赵志强.战场电磁环境客观复杂性分析与评估[J].现代防御技术,2010,38(3):19-25.doi:10.3969/j.issn.1009-086x.2010.03.005.WANG Zhigang,WANG Fang,and ZHAO Zhiqiang.The battlefield electromagnetic environment complexity of objective analysis and evaluation[J].Modern Ddfence Technology,2010,38(3):19-25.doi:10.3969/j.issn.1009-086x.2010.03.005.
[7]顾有林,张志,王伟,等.电磁环境复杂度评估算法研究与仿真实现[J].系统仿真学报,2012,24(2):394-397.GU Youlin,ZHANG Zhi,WANG Wei,et al.Research and simulation implementation of electromagnetic environment complex evaluation algorithm[J].Journal of System Simulation,2012,24(2):394-397.
[8]王伦文,孙伟,潘高峰.一种电磁环境复杂度快速评估方法[J].电子与信息学报,2010,32(12):2942-2947.WANG Lunwen,SUN Wei,and PAN Gaofeng.An evaluating quickly method for electromagnetic environmentcomplexity[J].Journal of Electronics&Information Technology,2010,32(12):2942-2947.
[9]ZEDDAM A,AVRIL G,and TLICH M.Electromagnetic environment and telecommunications:Towards a cognitive electromagnetic compatibility[J].Comptes Rendus Physique,2009,10(1):4-12.doi:10.1016/j.crhy.2009.02.001.
[10]董志勇,栗强.基于层次分析法的人为电磁环境复杂程度评估[J].指挥控制与仿真,2008,30(5):106-112.doi:10.3969/j.issn.1673-3819.2008.05.030.DONG Zhiyong and LI Qiang.Complexity evaluation of artificial electromagnetism environment based on AHP[J].Command Control&Simulation,2008,30(5):106-112.doi:10.3969/j.issn.1673-3819.2008.05.030.
[11]代合鹏,苏东林.电磁环境复杂度定量分析方法研究[J].微波学报,2009,25(3):25-27.DAI Hepeng and SU Donglin.Study of the complexity evaluationon electromagnetism environment[J].Journal of Microwaves,2009,25(3):25-27.
[12]王志刚,何俊.战场电磁环境复杂性定量评估方法研究[J].电子信息对抗技术,2008,25(2):50-53.doi:10.3969/j.issn.1674-2230.2008.02.013.WANG Zhigang and HE Jun.The research of battlefield electromagnetic environment complexity quantitative evaluation method[J].Electronic Information Warfare Technology,2008,25(2):50-53.doi:10.3969/j.issn.1674-2230.2008.02.013.
[13]YIN Baiqiang,HE Yigang,LI Bing,et al.An adaptive SVDmethod for solving the pass-region problem in S-transform time-frequency filters[J].Chinese Journal of Electronics,2015,24(1):115-123.doi:10.1049/cje.2015.01.019.
[14]YAO Wenxuan,TANG Qiu,TENG Zhaosheng,et al.Fast S-transform for time-varying voltage flicker analysis[J].IEEE Transactions on Instrumentation&Measurement,2014,63(1):72-79.
[15]尹柏强,何怡刚,朱彦卿.一种广义S变换及模糊SOM网络的电能质量多扰动检测和识别方法[J].中国电机工程学报,2015,35(4):866-872.YIN Baiqiang,HE Yigang,and ZHU Yanqing.Detection and classification of power quality multi-disturbances based on generalized S-transform and fuzzy SOM neuralnetwork[J].Proceedings of the Chinese Society of Electrical Engineering,2015,35(4):866-872.
[16]朱明哲,姬红兵,董青峰.广义S变换及其在复杂辐射源信号分析中的应用[J].电子与信息学报,2013,35(10):2432-2436.doi:10.3724/SP.J.1146.2012.01311.ZHU Mingzhe,JI Hongbing,and DONG Qingfeng.Generalized S-transform and its application to analysis of complex emitter signals[J].Journal of Electronics&Information Technology,2013,35(10):2432-2436.doi:10.3724/SP.J.1146.2012.01311.
[17]李文臣,张政超,陆静,等.电磁环境复杂度等级评估模型[J].中国电子科学研究院学报,2012,7(4):427-430.doi:10.3969/j.issn.1673-5692.2012.04.023.LI Wenchen,ZHANG Zhengchao,LU Jing,et al.Evaluation model of electromagnetic environment complexity classification[J].Journal of China Academy of Electronics and Information Technology,2012,7(4):427-430.doi:10.3969/j.issn.1673-5692.2012.04.023.
[18]王健,张江明,王瑞,等.论电磁环境的相对性与“接地气”的复杂度评估[J].电子与信息学报,2016,38(5):1249-1255.doi:10.11999/JEIT150947.WANG Jian,ZHANG Jiangming,WANG Rui,et al.Relativity of electromagnetic environment and down-toearth complexity evaluation[J].Journal of Electronics&Information Technology,2016,38(5):1249-1255.doi:10.11999/JEIT150947.