Presentation 2023-05-25
Real-time global ionospheric activity detection using FT8
Hayate Ouchi, Kazutoshi Yoshii, Zhenni Pan, Shigeru Shimamoto,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The high frequency band, which is a type of electromagnetic wave, has the advantage of being able to transmit radio waves to the far side of the Earth without the need for relays. This is because high frequency waves propagate through the ionosphere, a layer that covers the Earth in a spherical shape and reflects off the Earth's surface. However, predicting the current state of the ionosphere accurately is difficult because it changes over time and due to sudden phenomena that occur unexpectedly. Currently, the International Reference Ionosphere (IRI) is known as a empirical standard model of the ionosphere. However, actual ionospheric conditions change when solar activity becomes more active. For this reason, this paper uses FT8, a wireless communication method, to study the ionosphere from a new perspective of actual communication data propagated worldwide. Furthermore, the measured data is compared with the theoretical model to verify the requirements for ionospheric propagation and to ensure consistency between them.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) FT8 / Ionosphere / Radio propagation / High frequency / , Ionospheric propagation / Sporadic E layer
Paper # IN2023-8
Date of Issue 2023-05-18 (IN)

Conference Information
Committee RCS / IN
Conference Date 2023/5/25(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Keio University (Hiyoshi Campus), and online
Topics (in Japanese) (See Japanese page)
Topics (in English) Ad-Hoc/Sensor Networks/MANET, Mobile Networks, M2M/IoT Communications, Wi-Fi, IEEE802.15(ZigBee) and others
Chair Kenichi Higuchi(Tokyo Univ. of Science) / Kunio Hato(Internet Multifeed)
Vice Chair Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Osamu Muta(Kyushu Univ.) / Tsutomu Murase(Nagoya Univ.)
Secretary Tomoya Tandai(Panasonic) / Fumihide Kojima(Univ. of Electro-Comm) / Osamu Muta(Sharp) / Tsutomu Murase(KDDI Research)
Assistant Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Issei Kanno(KDDI Research) / Yuyuan Chang(Tokyo Inst. of Tech) / Kazuki Maruta(Tokyo Univ. of Science)

Paper Information
Registration To Technical Committee on Radio Communication Systems / Technical Committee on Information Networks
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Real-time global ionospheric activity detection using FT8
Sub Title (in English)
Keyword(1) FT8
Keyword(2) Ionosphere
Keyword(3) Radio propagation
Keyword(4) High frequency
Keyword(5) , Ionospheric propagation
Keyword(6) Sporadic E layer
1st Author's Name Hayate Ouchi
1st Author's Affiliation Waseda University(Waseda Univ.)
2nd Author's Name Kazutoshi Yoshii
2nd Author's Affiliation Waseda University(Waseda Univ.)
3rd Author's Name Zhenni Pan
3rd Author's Affiliation Waseda University(Waseda Univ.)
4th Author's Name Shigeru Shimamoto
4th Author's Affiliation Waseda University(Waseda Univ.)
Date 2023-05-25
Paper # IN2023-8
Volume (vol) vol.123
Number (no) IN-51
Page pp.pp.35-40(IN),
#Pages 6
Date of Issue 2023-05-18 (IN)