基于解析积分的TDSBR算法及其在目标散射中的应用
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摘要
在传统的时域弹跳射线(Time Domain Shooting and Bouncing Rays,TDSBR)方法的基础上,采用基于解析积分的时域物理光学(Time Domain Physical Optics,TDPO)方法计算目标的散射场.与传统弹跳射线法相比,新方法明显减少了射线管的数量,节省了计算内存,是一种分析电大尺寸目标散射问题的高效方法.最后,通过数值计算结果验证了该方法的可靠性和高效性.
Based on the traditional time domain shooting and bouncing rays(TDSBR),the scattering field of the target is calculated by the time domain physical optics(TDPO)algorithm based on analytic integral.Compared with the traditional SBR,this new method obviously reduces the number of ray tubes and saves computer memory.It is an efficient method for analyzing the scattering problem of electrically large objects.The numerical results demonstrate the reliability and efficiency of the method.
Based on the traditional time domain shooting and bouncing rays(TDSBR),the scattering field of the target is calculated by the time domain physical optics(TDPO)algorithm based on analytic integral.Compared with the traditional SBR,this new method obviously reduces the number of ray tubes and saves computer memory.It is an efficient method for analyzing the scattering problem of electrically large objects.The numerical results demonstrate the reliability and efficiency of the method.
引文
[1]葛德彪,魏兵.电磁波时域计算方法[M].西安:西安电子科技大学出版社,2014.
[2]杨凌霞,葛德彪,魏兵.电大目标电磁散射的TDPO分析[J].电波科学学报,2007,22(4):552-556.YANG L X,GE D B,WEI B.Analysis of large-scale EM scattering problems by using TD-PO method[J].Chinese journal of radio science,2007,22(4):552-556.(in Chinese)
[3]SUK S H,SEO T I,PARK H S,et al.Multi-resolution grid algorithm in the SBR and its application to the RCS calculation[J].Microwave and optical technology letters,2001,29(6):394-397.
[4]殷红成,朱国庆,董纯柱,等.基于自适应射线管分裂的多次反射计算方法[J].系统工程与电子技术,2013,35(4):700-705.YIN H C,ZHU G Q,DONG C Z,et al.Efficient multi-reflection computational method based on adaptive ray tube splitting[J].Systems engineering and electronics,2013,35(4):700-705.(in Chinese)
[5]GAO P C,TAO Y B,LIN H.Fast RCS prediction using multiresolution shooting and bouncing ray method on the GPU[J].Progress in electromagnetics research,2010,107(4):187-202.
[6]TAO Y B,LIN H,BAO H J.GPU-based shooting and bouncing ray method for fast RCS prediction[J].IEEE transactions on antennas and propagation,2010,58(2):494-502.
[7]张磊,侯兆国,董纯柱,等.含曲面介质结构复杂目标电磁散射计算的射线追踪方法[J].电波科学学报,2016,31(3):546-552.ZHANG L,YAO Z G,DONG C Z,et al.Ray tracing method for electromagnetic scattering computation from complex target with curved surface dielectric structure[J].Chinese journal of radio science,2016,31(3):546-552.(in Chinese)
[8]覃璐瑶,魏兵,边成,等.一种基于解析积分的TDPO算法及其在散射问题中的应用[J].电波科学学报,2016,31(3):508-511.QIN L Y,WEI B,BIAN C,et al.A TDPO algorithm based on analytic integral and its application in scattering problems[J].Chinese journal of radio science,2016,31(3):508-511.(in Chinese)
[9]阮颖铮.雷达截面与隐身技术[M].北京:国防工业出版社,1998.
[10]丁建军,陈磊,刘志伟,等.基于时域弹跳射线法分析电大尺寸目标的散射[J].系统工程与电子技术,2010,32(9):1846-1849.DING J J,CHEN L,LIU Z W,et al.Analysis of electromagnetic scattering of electrically large objects with time domain shooting and bouncing rays method[J].Systems engineering and electronics,2010,32(9):1846-1849.(in Chinese)
[11]丁建军,刘志伟,徐侃,等.基于高频方法分析电大尺寸目标的散射,系统工程与电子技术,2010,32(11):2309-2312.DING J J,LIU Z W,XU K,et al.Application of high frequency methods for scattering analysis of electrically large objects[J].Systems engineering and electronics,2010,32(11):2309-2312.(in Chinese)
[2]杨凌霞,葛德彪,魏兵.电大目标电磁散射的TDPO分析[J].电波科学学报,2007,22(4):552-556.YANG L X,GE D B,WEI B.Analysis of large-scale EM scattering problems by using TD-PO method[J].Chinese journal of radio science,2007,22(4):552-556.(in Chinese)
[3]SUK S H,SEO T I,PARK H S,et al.Multi-resolution grid algorithm in the SBR and its application to the RCS calculation[J].Microwave and optical technology letters,2001,29(6):394-397.
[4]殷红成,朱国庆,董纯柱,等.基于自适应射线管分裂的多次反射计算方法[J].系统工程与电子技术,2013,35(4):700-705.YIN H C,ZHU G Q,DONG C Z,et al.Efficient multi-reflection computational method based on adaptive ray tube splitting[J].Systems engineering and electronics,2013,35(4):700-705.(in Chinese)
[5]GAO P C,TAO Y B,LIN H.Fast RCS prediction using multiresolution shooting and bouncing ray method on the GPU[J].Progress in electromagnetics research,2010,107(4):187-202.
[6]TAO Y B,LIN H,BAO H J.GPU-based shooting and bouncing ray method for fast RCS prediction[J].IEEE transactions on antennas and propagation,2010,58(2):494-502.
[7]张磊,侯兆国,董纯柱,等.含曲面介质结构复杂目标电磁散射计算的射线追踪方法[J].电波科学学报,2016,31(3):546-552.ZHANG L,YAO Z G,DONG C Z,et al.Ray tracing method for electromagnetic scattering computation from complex target with curved surface dielectric structure[J].Chinese journal of radio science,2016,31(3):546-552.(in Chinese)
[8]覃璐瑶,魏兵,边成,等.一种基于解析积分的TDPO算法及其在散射问题中的应用[J].电波科学学报,2016,31(3):508-511.QIN L Y,WEI B,BIAN C,et al.A TDPO algorithm based on analytic integral and its application in scattering problems[J].Chinese journal of radio science,2016,31(3):508-511.(in Chinese)
[9]阮颖铮.雷达截面与隐身技术[M].北京:国防工业出版社,1998.
[10]丁建军,陈磊,刘志伟,等.基于时域弹跳射线法分析电大尺寸目标的散射[J].系统工程与电子技术,2010,32(9):1846-1849.DING J J,CHEN L,LIU Z W,et al.Analysis of electromagnetic scattering of electrically large objects with time domain shooting and bouncing rays method[J].Systems engineering and electronics,2010,32(9):1846-1849.(in Chinese)
[11]丁建军,刘志伟,徐侃,等.基于高频方法分析电大尺寸目标的散射,系统工程与电子技术,2010,32(11):2309-2312.DING J J,LIU Z W,XU K,et al.Application of high frequency methods for scattering analysis of electrically large objects[J].Systems engineering and electronics,2010,32(11):2309-2312.(in Chinese)