IGGCAS OpenIR  > 地球与行星物理院重点实验室
Modeling and analysis of NWC signal propagation amplitude based on LWPC and IRI models
Yi Juan1; Gu XuDong1; Li ZhiPeng1; Lin RenTong1; Cai YiHui2; Chen Long1; Ni BinBin1,3; Yue XiNan2
2019-09-01
Source PublicationCHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
ISSN0001-5733
Volume62Issue:9Pages:3223-3234
AbstractVLF (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.
KeywordNWC very low frequency (VLF) transmitter signals Long Wavelength Propagation Capability (LWPC) model International Reference Ionosphere (IRI) model Communication and navigation
DOI10.6038/cjg2019N0190
WOS KeywordD-REGION ; LOW-LATITUDE ; RESONANT SCATTERING ; VLF ; SYSTEM ; ELECTRONS
Language英语
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000495040900002
PublisherSCIENCE PRESS
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95732
Collection地球与行星物理院重点实验室
Corresponding AuthorGu XuDong
Affiliation1.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
Recommended Citation
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.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yi Juan]'s Articles
[Gu XuDong]'s Articles
[Li ZhiPeng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yi Juan]'s Articles
[Gu XuDong]'s Articles
[Li ZhiPeng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yi Juan]'s Articles
[Gu XuDong]'s Articles
[Li ZhiPeng]'s Articles
Terms of Use
No data!
Social Bookmark/Share
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit Add to Technorati
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.