电离层调制加热产生极低频/甚低频波定向辐射的理论分析

郝书吉; 李清亮; 杨巨涛; 吴振森

doi:10.7498/aps.62.229402

摘要

通过低电离层调制加热能够产生极低频/甚低频(ELF/VLF)波. 基于调制加热理论, 并引入相控阵天线思想, 建立了通过双波束幅度调制模式(DAM)和圆形几何调制模式(CGM)产生ELF/VLF波的定向辐射模型, 并通过与实验数据的对比验证了模型的正确性. 据此模型, 采用HARRP加热阵参数, 对比分析了上述两种定向辐射模式与常规幅度调制模式(AM)之间的特性差异, 并研究了调制频率(fELF/VLF)和加热波束与垂直方向倾角(ψ)对各模式的影响. 结果表明: 相对AM模式, 通过合理设置初始相位、fELF/VLF和ψ, DAM 模式和CGM模式在实现ELF/VLF信号定向辐射的同时还可以提高其辐射强度, 相对AM模式, CGM模式信号强度最大提高约11.3 dB.

关键词:

Abstract

ELF/VLF waves are generated via amplitude-modulated heating of the lower ionosphere. Based on the modulated heating theory, the directional radiation models of dual beam amplitude modulation (DAM) and circle geometric modulation (CGM) are established by introducing the phased array ideas, which are validated by comparison with the experimental data. According to the models, differences between the above two directional radiation models and the normal amplitude modulation (AM) are analyzed with parameters of HARRP phased-array HF facility, and the influences of the modulation frequency (fELF/VLF) and elevation of the heating waves on mode are investigated as well. Compared with the AM mode, DAM and CGM can realize the directional radiation, and enhance the radiant intensity by properly setting the initial phase, the modulation frequency (fELF/VLF) and angle of inclination of the heat wave to the vertical direction. The ELF/VLF radiant intensity may be increased by 11.3 dB when replacing AM with CGM.

Keywords:

作者及机构信息

1.
西安电子科技大学理学院, 西安 711071;

2.
中国电波传播研究所青岛分所, 青岛 266107

Authors and contacts

1.
Department of Physics, Xidian University, Xi’an 710071, China;

2.
China Research Institute of Radiowave Propagation, Qingdao 266107, China

参考文献

[1]	Meltz G, Perkins F W 1974 Radio Sci. 9 885
[2]	Isham B, Birkmayer W, Hagfors T 1987 J. Geophys. Res. 92 4629
[3]	Deng F, Zhao Z Y, Shi R, Zhang Y N 2009 Acta Phys. Sin. 58 7382 (in Chinese) [邓峰, 赵正予, 石润, 张援农 2009 物理学报 58 7382]
[4]	Hu Y G, Zhao Z Y, Xiang W, Zhang Y N 2011 Acta Phys. Sin. 60 099402 (in Chinese) [胡耀垓, 赵正予, 项薇, 张援农 2011 物理学报 60 099402]
[5]	Getmantsev G G, Zuikov N A, Kotik D S, Mironenko L F, Mityakov N A, Rapoport V O, Sazonov Y A, Trakhtengerts V Y, Eidman V Y 1974 JETP Lett. 20 101
[6]	Willis S W, Davis J R 1973 Geophys. Res. 78 5710
[7]	Li Q L, Yang J T, Yan Y B, Zhao Y J 2008 Chin. J. Radio Sci. 23 883 (in Chinese) [李清亮, 杨巨涛, 闫玉波, 赵耀军 2008 电波科学学报 23 883]
[8]	Wang F, Zhao Z Y, Chang S S, Ni B B, Gu X D 2012 Acta Phys. Sin. 61 199401 (in Chinese) [汪枫, 赵正予, 常珊珊, 倪彬彬, 顾旭东 2012 物理学报 61 199401]
[9]	Gu X D, Zhao Z Y, Ni B B, Wang X, Deng F 2008 Acta Phys. Sin. 57 6673 (in Chinese) [顾旭东, 赵正予, 倪彬彬, 王翔, 邓峰 2008 物理学报 57 6673]
[10]	Stubbe P, Kopka H, Rietveld M T, Dowden R L 1982 J. Atmos. Terr. Phys. 44 1123
[11]	Ferraro A J, Lee H S, Allshouse R, Carrol K, Lunnen R, Collins T 1984 J. Atmos. Terr. Phys. 46 855
[12]	Barr R, Stubbe P 1991 Res. Lett. 18 1035
[13]	Papadopoulos K, Chang C L, Vitello P, Drobot A 1990 Radio Sci. 25 1311
[14]	Villasenor J, Wong A Y, Song B, Pau J, McCarrick M 1996 Radio Sci. 31 211
[15]	Milikh G M, Papadopoulos K 2007 Geophys. Res. Lett. 34 l20804
[16]	Hao S J, Li Q L, Yang J T, Wu Z S 2013 Chin. J. Radio Sci. 28 231 (in Chinese) [郝书吉, 李清亮, 杨巨涛, 吴振森 2013 电波科学学报 28 231]
[17]	Zhang X Q, Wang J H, Li Z R 2008 Chin. Phys. B 17 608
[18]	Cohen M B, Inan U S, Golkowski M A 2008 J. Geophys. Res. 35 L12101
[19]	Cohen M B 2009 Ph. D. Dissertation (Stanford: Stanford University)
[20]	Barr R, Rietveld M T, Stubbe P, Kopka H 1987 Radio Sci. 22 1076
[21]	Hansen J D, Morales G J 1992 J. Geophys. Res. 97 17019
[22]	Pashin A B, Belova E G, Lyatsky, W B 1995 Atmos. Solar-Terr. Phys. 57 245
[23]	Li K, Pan W Y 2003 Chin. J. Radio Sci. 13 265 (in Chinese) [李凯, 潘威炎 2003 电波科学学报 13 265]
[24]	Moore R C, Inan U S, Bell T F, Kennedy E J 2007 J. Geophys. Res. 112 A05309

施引文献

[1]	Meltz G, Perkins F W 1974 Radio Sci. 9 885
[2]	Isham B, Birkmayer W, Hagfors T 1987 J. Geophys. Res. 92 4629
[3]	Deng F, Zhao Z Y, Shi R, Zhang Y N 2009 Acta Phys. Sin. 58 7382 (in Chinese) [邓峰, 赵正予, 石润, 张援农 2009 物理学报 58 7382]
[4]	Hu Y G, Zhao Z Y, Xiang W, Zhang Y N 2011 Acta Phys. Sin. 60 099402 (in Chinese) [胡耀垓, 赵正予, 项薇, 张援农 2011 物理学报 60 099402]
[5]	Getmantsev G G, Zuikov N A, Kotik D S, Mironenko L F, Mityakov N A, Rapoport V O, Sazonov Y A, Trakhtengerts V Y, Eidman V Y 1974 JETP Lett. 20 101
[6]	Willis S W, Davis J R 1973 Geophys. Res. 78 5710
[7]	Li Q L, Yang J T, Yan Y B, Zhao Y J 2008 Chin. J. Radio Sci. 23 883 (in Chinese) [李清亮, 杨巨涛, 闫玉波, 赵耀军 2008 电波科学学报 23 883]
[8]	Wang F, Zhao Z Y, Chang S S, Ni B B, Gu X D 2012 Acta Phys. Sin. 61 199401 (in Chinese) [汪枫, 赵正予, 常珊珊, 倪彬彬, 顾旭东 2012 物理学报 61 199401]
[9]	Gu X D, Zhao Z Y, Ni B B, Wang X, Deng F 2008 Acta Phys. Sin. 57 6673 (in Chinese) [顾旭东, 赵正予, 倪彬彬, 王翔, 邓峰 2008 物理学报 57 6673]
[10]	Stubbe P, Kopka H, Rietveld M T, Dowden R L 1982 J. Atmos. Terr. Phys. 44 1123
[11]	Ferraro A J, Lee H S, Allshouse R, Carrol K, Lunnen R, Collins T 1984 J. Atmos. Terr. Phys. 46 855
[12]	Barr R, Stubbe P 1991 Res. Lett. 18 1035
[13]	Papadopoulos K, Chang C L, Vitello P, Drobot A 1990 Radio Sci. 25 1311
[14]	Villasenor J, Wong A Y, Song B, Pau J, McCarrick M 1996 Radio Sci. 31 211
[15]	Milikh G M, Papadopoulos K 2007 Geophys. Res. Lett. 34 l20804
[16]	Hao S J, Li Q L, Yang J T, Wu Z S 2013 Chin. J. Radio Sci. 28 231 (in Chinese) [郝书吉, 李清亮, 杨巨涛, 吴振森 2013 电波科学学报 28 231]
[17]	Zhang X Q, Wang J H, Li Z R 2008 Chin. Phys. B 17 608
[18]	Cohen M B, Inan U S, Golkowski M A 2008 J. Geophys. Res. 35 L12101
[19]	Cohen M B 2009 Ph. D. Dissertation (Stanford: Stanford University)
[20]	Barr R, Rietveld M T, Stubbe P, Kopka H 1987 Radio Sci. 22 1076
[21]	Hansen J D, Morales G J 1992 J. Geophys. Res. 97 17019
[22]	Pashin A B, Belova E G, Lyatsky, W B 1995 Atmos. Solar-Terr. Phys. 57 245
[23]	Li K, Pan W Y 2003 Chin. J. Radio Sci. 13 265 (in Chinese) [李凯, 潘威炎 2003 电波科学学报 13 265]
[24]	Moore R C, Inan U S, Bell T F, Kennedy E J 2007 J. Geophys. Res. 112 A05309

计量

文章访问数: 5844
PDF下载量: 455
被引次数: 0

姓名
邮箱
手机号码
标题
留言内容
验证码

搜索

留言板