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基于遗传算法的大地电导率反演

Inversion of earth conductivity based on the genetic algorithm
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摘要 大地电导率是目前影响地波传播时延修正量计算精度的关键因素之一。将地波传播时延计算方法中的Millington经验公式作为前向算法,以传播时延修正量的理论预测结果与实测结果误差最小为优化目标,将大地电导率反演问题转化为优化问题,并采用遗传算法对传播路径上的大地电导率进行反演。通过对部分试验区域的仿真实验,证实了这种反演方法的可行性以及所反演电导率的可靠性。 The earth conductivity is a key factor affecting the calculation accuracy of the time-delay correction on ground-wave propagation.This paper presents an inversion method to calculate the earth conductivity from the propagation time delay.As a forward algorithm,the Millington empirical formula is employed to calculate the propagation time-delay,and then the genetic algorithm（GA） is used to calculate the earth conductivities by solving an optimization problem targeting to a minimum error between the calculated time-delay and the measured value.The inversed earth conductivity is further verified by the simulation in some experimental regions.
作者 蒲玉蓉 席晓莉 朱虹 周丽丽
机构地区 西安理工大学自动化与信息工程学院
出处 《电波科学学报》 EI CSCD 北大核心 2010年第2期378-382,共5页 Chinese Journal of Radio Science
基金 国家自然科学基金资助项目(No.60671035) 陕西省重点学科建设专项资金资助项目
关键词 大地电导率 地波传播时延 Millington经验公式 遗传算法 earth conductivity propagation time-delay of ground-wave Millington empirical formula genetic algorithms
分类号 TN011 [电子电信—物理电子学]
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参考文献10

  • 1National Security Space Office (NSSO). National Positioning, Navigation, and Timing Architecture Study, Final Report [R]. Washington DC, 2008.
  • 2吴海涛,边玉敬,李志刚.罗兰-C最新进展及其对我国相关系统改造的启示[J].陕西天文台台刊,2000,23(1):10-18. 被引量：9
  • 3JOHNSON G W, SWASZEK P F. An Evaluation of eLoran as a Backup to GPS[C]//2007 IEEE Conference on Technologies for Homeland Security, 2007: 95-100.
  • 4IEEE Sts 356-1974. IEEE guide for radio methods of measuring earth conductivity[S].1974.
  • 5RA L R, JOSE M R, JORGE M. Alternatire methods to obtain ground conductivity [J]. IEEE Transactions on Broadcasting, 2009, 55 (2): 282-289.
  • 6WAIT J R. The ancient and modern history of EM ground-wave propagation [J]. IEEE Antennas and Propagation Magazine, 1998, 40(5): 7-24.
  • 7GESNY H, RAVARD O. Propagation over irregular terrain in the VHF band a review of integral equation models[C]//in National Conference on Antennas and Propagation, Mar. 30-Apr. 1, 1999, pp. 61 - 64.
  • 8潘威炎,彭怀云,张红旗.非均匀光滑球面地波衰减因子的抛物方程算法[J].电波科学学报,2006,21(1):37-42. 被引量：14
  • 9潘威炎.长波超长波及长波传播[M].成都:电子科技大学出版社,2004.
  • 10HAUPT R L , WERNER D H. Genetic Algorithms in Electromagnetics[M]. IEEE Press/Wiley Interscience Publication, 2007.

二级参考文献14

  • 1耿友林,潘威炎,温芳茹.分段均匀光滑地面上低频地波场的衰减因子[J].电波科学学报,1993,8(3):1-10. 被引量：3
  • 2G Daniel Dockery. Modeling electromagnetic wave propagation in the troposphere using the paragation equation[J]. Transactions on Antennas and Propagation, 1988,36(10): 1464-1470.
  • 3James R Kuttler and G Daniel Doekery. Theoretical description of the parabolic approximation/Fourier split-step method of representing electromagnetic propagation in the troposphere [J]. Radio Science,Vol26, 1991,26(2) :381-393.
  • 4Hardin, R H and F D Tappert. Applications of the split-step Fourier method to the numerical solution of nonlinear and variable coefficient wave equations[J].SIAM Rev. Chronicle 15,423(1973) ,eprint.
  • 5王东文.复杂地面条件下低频地波传播的三维预测[J].电波科学学报,1988,3(1):50-63.
  • 6Recommendation ITU-R P. 386-7. Ground-Wave propagation curves for frequencies between 10kHz and 30MHz,pp. 1-54.
  • 7Cooley, J W, P A W Lewis, and P D Welch. The fastFourier transform algorithm: Programming considerations inthe calculation of sine, cosine, and Laplace transforms[J]. J. Sound Vib. , 1970,12(3) : 315-337.
  • 8Wait J R. On the theory of mixed-path wave propagation on a spherical earth[J].J. Res. NBS, 1961,65D:401-406.
  • 9Wait J R. Mixed-path ground wave propagation[J]. J.Res. NBS, 1957,59:19-26.
  • 10Millington G. Ground wave propagation over an inhomoge-neous smooth earth[J]. Proe IEEE, 1949, 96(39) :53-64.

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2010年 第2期

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