Modeling and analysis of NWC signal propagation amplitude based on LWPC and IRI models
文献类型：期刊论文
| 作者 | Yi Juan1; Gu XuDong1; Li ZhiPeng1; Lin RenTong1; Cai YiHui2; Chen Long1; Ni BinBin1,3; Yue XiNan2 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2019-09-01 |
| 卷号 | 62期号:9页码:3223-3234 |
| ISSN号 | 0001-5733 |
| 关键词 | NWC very low frequency (VLF) transmitter signals Long Wavelength Propagation Capability (LWPC) model International Reference Ionosphere (IRI) model Communication and navigation |
| DOI | 10.6038/cjg2019N0190 |
| 英文摘要 | VLF (very low frequency) electromagnetic waves at 3 similar to 30 kHz have the characteristics of long wavelength and long propagation distance. They can propagate along the Earth-lower ionosphere waveguide, and are widely used in many fields including communication and navigation. The Long Wavelength Propagation Capability (LWPC) model based on the waveguide mode theory provides a useful tool to evaluate the propagation path and amplitude of VLF waves, which can be analyzed to investigate ionospheric disturbances caused by solar flares, magnetic storms, earthquakes and other extreme events. In this paper, the very simple electron density and collision frequency modules originally embedded in LWPC are updated by the International Reference Ionosphere (IRI) model for simulation improvements. The obtained numerical results are then compared to the observed amplitude of NWC VLF transmitter signals by Wuhan University VLF receiver at the Wuhan station. It is found that the amplitude variations of NWC VLF transmitter signals modeled using the LWPC and IRI models are much closer to the observations, which mainly results from the improved nighttime electron density profile from the IRI model and justifies the importance of electron density of the lower ionosphere to the VLF signal propagation properties. In addition, the dawn-dusk electron density variation on the wave propagation path largely modulates the NWC VLF signal amplitude, and forms an obvious transition region during the sunrise and sunset periods. Therefore, incorporation of the IRI model into LWPC improves quantitative analyses and prediction performance of the propagation processes of VLF transmitter signals, and provides an evaluation method of long wave navigation and communication quality. |
| WOS关键词 | D-REGION ; LOW-LATITUDE ; RESONANT SCATTERING ; VLF ; SYSTEM ; ELECTRONS |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:000495040900002 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/95732]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | Gu XuDong |
| 作者单位 | 1.Wuhan Univ, Sch Elect Informat, Wuhan 430072, Hubei, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Comparat Planetol, Hefei 230026, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yi Juan,Gu XuDong,Li ZhiPeng,et al. Modeling and analysis of NWC signal propagation amplitude based on LWPC and IRI models[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2019,62(9):3223-3234. |
| APA | Yi Juan.,Gu XuDong.,Li ZhiPeng.,Lin RenTong.,Cai YiHui.,...&Yue XiNan.(2019).Modeling and analysis of NWC signal propagation amplitude based on LWPC and IRI models.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,62(9),3223-3234. |
| MLA | Yi Juan,et al."Modeling and analysis of NWC signal propagation amplitude based on LWPC and IRI models".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 62.9(2019):3223-3234. |
入库方式： OAI收割
来源：地质与地球物理研究所
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