Development of VLF/LF field strength prediction program using wave-hop theory

Kenro Nozaki; Kuniyasu Imamura; Shigeru Tsuchiya; Kitauchi Hideaki

Presentation information

Oral

Symbol P (Space and Planetary Sciences) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM16] Physics and Chemistry in the Atmosphere and Ionosphere

Tue. May 24, 2016 3:30 PM - 5:00 PM 106 (1F)

Convener:*Yuichi Otsuka(Solar-Terrestrial Environment Laboratory, Nagoya University), Takuya Tsugawa(National Institute of Information and Communications Technology), Seiji Kawamura(National Institute of Information and Communications Technology), Chair:Shin-ichiro Oyama(Institute for Space-Earth Environmental Research, Nagoya University), Tatsuhiro Yokoyama(National Institute of Information and Communications Technology)

4:45 PM - 5:00 PM

[PEM16-18] Development of VLF/LF field strength prediction program using wave-hop theory

*Kenro Nozaki¹, Kuniyasu Imamura¹, Shigeru Tsuchiya¹, Kitauchi Hideaki² (1.National Institute of Information and Communications Technology, 2.Kitauchi Lab.)

Keywords:VLF/LF, field strength, wave-hop theory

A numerical calculation program for VLF/LF radio wave field strength by means of wave-hop theory adopting the recommendations of the International Telecommunication Union Radiocommunications Sector (ITU-R). The electric field at the receiving point consists of a ground wave and sky waves of from 1-hop to 10-hop modes reflected between the ground and bottom of the ionosphere. Parameters at every ground and ionospheric reflection point are calculated for given day, time, transmitting power, transmitting/receiving location within 16000km. A detailed calculation algorithm and some characteristic results are presented.