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| Solution to Low-frequency Radio Wave Propagation Problems in Transition Regions over Irregular Terrain |
| ZHOU Lili①③ BAI Xuesheng① MU Zhonglin② PU Yurong③ XI Xiaoli③ HE Lifeng① |
①(College of Electrical and Information Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China)
②(College of Aeronautics and Astronautics Engineering, Air Force Engineering University, Xi'an 710038, China)
③(College of Automation and Information Engineering, Xi'an University of Technology, Xi'an 710048, China) |
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Abstract Based on the wide-angle parabolic equation method, propagation characteristics of low-frequency radio wave in transition regions over irregular terrain are analyzed. The formula of the direction factor is deduced with certain assumptions. Electric field distributions within 60 km height of three path models are simulated, and the propagation characteristics are compared with those on the ground. By the proposed approach calculation schemes of the electric field both on the ground and in transition regions can be unified with high accuracy, which is important for solutions of the sky-wave propagation problems in a complex earth-ionosphere waveguide.
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Received: 08 December 2016
Published: 23 June 2017
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| Fund: The National Natural Science Foundation of China (61401261), China Postdoctoral Science Foundation (2016M600803), The Scientific Research Startup Foundation of Shaanxi University of Science and Technology (BJ11-20) |
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Corresponding Authors:
MU Zhonglin
E-mail: lin1997_98@163.com
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| [1] |
刘辛涛, 胡安平. 长波导航系统拓展应用研究[J]. 现代导航, 2013, 4(2): 116-119.
|
|
LIU Xintao and HU Anping. Research on application extension of long wave navigation system[J]. Modern Navigation, 2013, 4(2): 116-119.
|
| [2] |
FENG Y and ASTIN I. Remote sensing of soil moisture using the propagation of Loran-C navigation signals[J]. IEEE Geoscience and Remote Sensing Letters, 2015, 12(1): 195-198. doi: 10.1109/LGRS.2014.2332055.
|
| [3] |
郑鹏. 基于HTcSQUID技术的低频电磁波应用研究[D]. [硕士论文], 北京大学, 2014.
|
|
ZHENG Peng. Application research of low frequency electromagnetic wave based on HTcSQUID technique[D]. [Master dissertation ], Peking University, 2014.
|
| [4] |
周丽丽, 穆中林, 蒲玉蓉, 等. 不规则地形地波传播衰减因子的改进算法及结果一致性研究[J]. 电子与信息学报, 2015, 37(9): 2254-2259. doi: 10.11999/JEIT150077.
|
|
ZHOU Lili, MU Zhonglin, PU Yurong, et al. An improved algorithm for the ground-wave attenuation factor prediction over irregular terrain and the results consistency study[J]. Journal of Electronics & Information Technology, 2015, 37(9): 2254-2259. doi: 10.11999/JEIT150077.
|
| [5] |
DEMINCO N. Propagation prediction techniques and antenna modeling (150 to 1705 kHz) for intelligent transportation systems (ITS) broadcast applications[J]. IEEE Antennas and Propagation Magazine, 2000, 42(4): 9-34. doi: 10.1109/74. 868050.
|
| [6] |
WAKAI N, KURIHARA N, and OTSUKA A. Numerical method for calculating LF sky-wave, ground-wave and their resultant wave field strengths[J]. Electronics Letters, 2004, 40(5): 288-290. doi: 10.1049/el:20040207.
|
| [7] |
胡绘斌. 预测复杂环境下电波传播特性的算法研究[D], [博士论文], 国防科学技术大学, 2006.
|
|
HU Huibin. Study on the algorithms of the radio propagation characteristics in complex environments[D]. [Ph.D. dissertation], National University of Defense Technology, 2006.
|
| [8] |
ZHANG P, BAI L, WU Z, et al. Applying the parabolic equation to tropospheric groundwave propagation: A review of recent achievements and significant milestones[J]. IEEE Antennas and Propagation Magazine, 2016, 58(3): 31-44. doi: 10.1109/MAP.2016.2541620.
|
| [9] |
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. doi: 10.3969/j.issn.1005-0388.2006.01.007.
|
|
PAN Weiyan, PENG Huaiyun, and ZHANG Hongqi. Parabolic equation algorithm of wave attenuation along inhomogeneous smooth ground[J]. Chinese Journal of Radio Science, 2006, 21(1): 37-42. doi: 10.3969/j.issn.1005-0388. 2006.01.007.
|
| [10] |
WANG D, XI X, PU Y, et al. Parabolic equation method for Loran-C ASF prediction over irregular terrain[J]. IEEE Antennas and Wireless Propagation Letters, 2016, 15: 734-737. doi: 10.1109/LAWP.2015.2471079.
|
| [11] |
COLLIN R E. Hertzian dipole radiating over a lossy earth or sea: Some early and late 20th century controversies[J]. IEEE Antennas and Propagation Magazine, 2004, 46(2): 64-79. doi: 10.1109/MAP.2004.1305535.
|
| [12] |
WAIT J R. The ancient and modern history of EM ground-wave propagation[J]. IEEE Antennas and Propagation Magazine, 1998, 40(5): 7-24. doi: 10.1109/74. 735961.
|
| [13] |
VINCENT J, BORDERIES P, POIRIER J R, et al. Long-range three-dimensional ground wave propagation modeling over flat, irregular terrain[J]. IEEE Transactions on Antennas and Propagation, 2016, 64(5): 1900-1906. doi: 10.1109/TAP.2016.2540647.
|
| [14] |
马斯敏, 宋铮, 马恒民. 基于FEKO/PE混合算法的近地线天线地波场求解[J]. 微波学报, 2014, 30(6): 46-49.
|
|
MA Simin, SONG Zheng, and MA Hengmin. FEKO/PE hybrid algorithm based calculation on ground-wave of the wire antennas[J]. Journal of Microwaves, 2014, 30(6): 46-49.
|
| [15] |
王昆, 龙云亮, 刘震宇. 基于双向抛物方程逆算法的障碍物定位技术研究[J].电波科学学报, 2015, 30(6): 1108-1115. doi: 10. 13443/j.cjors.2014122201.
|
|
WANG Kun, LONG Yunliang, and LIU Zhenyu. Localization of obstacles based on the inverse algorithm of two-way parabolic equation approach[J]. Chinese Journal of Radio Science, 2015, 30(6): 1108-1115. doi: 10.13443/j.cjors. 2014122201.
|
| [16] |
ZHOU L, WANG D, MU Z, et al. LF radio wave prediction at short ranges with high propagation angles over irregular terrain[J]. IEEE Antennas and Wireless Propagation Letters, 2017, 16: 732-735. doi: 10.1109/LAWP.2016.2601138.
|
|
|
|
