均匀各向异性地质体对水平架设的极低频发射天线的影响
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摘要
对均匀各向异性地质模型上不同方位布设的水平电偶极子产生的似稳态场进行了数值计算和比较,阐明极低频发射天线辐射的场强大小和最大辐射方向不仅与台址的地质体性质有关,还与天线的布设方位有关。
The quasi-static fields produced by the electric dipole that was located above a homogeneous anisotropic geological structure mode in different azimuth were calculated and compared.The result shows that the radiation amplitude and the pattern of the ELF antenna are concerned with the earth′s geolo-gical property and the route of the antenna.
The quasi-static fields produced by the electric dipole that was located above a homogeneous anisotropic geological structure mode in different azimuth were calculated and compared.The result shows that the radiation amplitude and the pattern of the ELF antenna are concerned with the earth′s geolo-gical property and the route of the antenna.
引文
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[12]王华军.正余弦变换的数值滤波[J].工程地球物理学报,2004,1(4):329-335.WANG Hua-jun.Digital filter algorithm of the sine and cosine transform[J].Chinese Journal of EngineeringGeophy-sics,2004,1(4):329-335.(in Chinese)
[2]梁高权.甚低频波与超低频波辐射与传播[M].南京:海军工程大学电子工程学院,2002.
[3]考夫曼A A,凯勒G V.频率域和时间域电磁测深[M].王建谋译.北京:地质出版社,1987.
[4]WAITJ R.Electromagnetic Waves in Stratified Media[M].Oxford:Oxford University Press,1996.
[5]BURROWS ML.Ground anisotropy and extremely lowfrequency(ELF)transmitting Antennas[J].IEEE Trans.on Communications,1974,22(4):401-404.
[6]Le MASNE D,VASSEUR G.Electromagnetic field of sources at the surface of a homogeneous conducting half-space with horizontal anisotropy:Applicationtofissured media[J].Geophysical Prospecting,1981,29:803-821.
[7]LI Xiao-bo,PEDERSEN L B.The electromagnetic response of an anzi muthally anisotropic half-space[J].Geo-physics,1991,56(9):1 462-1 473.
[8]GALEJS J.Horizontally oriented antennas in the presence of an anisotropic ground[J].Radio Science,1969,4:1047-1 053.
[9]卓贤军,赵国泽.一种资源探测人工源电磁新技术[J].石油地球物理勘探,2004,39(增刊):114-117.ZHUO Xian-jun,ZHAO Guo-ze.A new electromagnetic method in resources prospecting[J].Oil GeophysicalProspecting,2004,39(Supplement):114-117.(in Chinese)
[10]赵国泽,陆建勋.用人工源超低频电磁波监测地震的试验与分祈[J].中国工程科学,2003,5(10):27-33.ZHAO Guo-ze,LU Jian-xun.Monitoring&analysis of earthquake phenomena by artificial SLF waves[J].Engineering Science,2003,5(10):27-33.(in Chinese)
[11]卓贤军,赵国泽,底青云,等.超低频/极低频电磁技术在地球物理勘探中的初步应用[J].地球物理学进展,2007,22(6):1 921-1 924.ZHUO Xian-jun,ZHAO Guo-ze,DI Qing-yun,et al.Preli minary application of SLF/ELF electromagnetic tech-nique in geophysical exploration[J].Progress in Geophysics,2007,22(6):1 921-1 924.(in Chinese)
[12]王华军.正余弦变换的数值滤波[J].工程地球物理学报,2004,1(4):329-335.WANG Hua-jun.Digital filter algorithm of the sine and cosine transform[J].Chinese Journal of EngineeringGeophy-sics,2004,1(4):329-335.(in Chinese)
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