講演名 2021-10-07
A potential cause of pulsive noises in receiving BS signals
西村 竜一(NICT), 鄭 炳表(NICT), 薄田 一(NICT), 高橋 卓(NICT),
PDFダウンロードページ PDFダウンロードページへ
抄録(和) The level of receiving BS signals is affected by various factors such as precipitation in the atmosphere and the condition of ionosphere. Another potential factor like that is an aircraft flying over the sky. Airplanes on a cruise are generally flying at approximately the altitude of the tropopause because of the atmospheric density there and the resultant fuel efficiency. We routinely recorded the level of BS signals obtained at two observation points in two locations for four weeks, and found that pulsive level changes toward both up and down occur multiple times mainly during daytime. These signals appeared in the data of one location while no such signal appear in the other location. Defined the algorithm for extracting such pulsive signals, statistics of those extracted signals are investigated. Through the careful analysis, including comparison with the actual flight schedule and the route information, it is suggested that these pulsive signals can be attributed to the interference of the direct and the reflection waves made by an aircraft passing near the propagation path of the BS signal.
抄録(英) The level of receiving BS signals is affected by various factors such as precipitation in the atmosphere and the condition of ionosphere. Another potential factor like that is an aircraft flying over the sky. Airplanes on a cruise are generally flying at approximately the altitude of the tropopause because of the atmospheric density there and the resultant fuel efficiency. We routinely recorded the level of BS signals obtained at two observation points in two locations for four weeks, and found that pulsive level changes toward both up and down occur multiple times mainly during daytime. These signals appeared in the data of one location while no such signal appear in the other location. Defined the algorithm for extracting such pulsive signals, statistics of those extracted signals are investigated. Through the careful analysis, including comparison with the actual flight schedule and the route information, it is suggested that these pulsive signals can be attributed to the interference of the direct and the reflection waves made by an aircraft passing near the propagation path of the BS signal.
キーワード(和) フレネルゾーン / バイスタティック・レーダー / 飛行機 / リモートセンシング / 降雨
キーワード(英) Fresnel zone / Bistatic radar / Aircraft / Remote sensing / Precipitation
資料番号 SAT2021-46
発行日 2021-09-30 (SAT)

研究会情報
研究会 SAT
開催期間 2021/10/7(から2日開催)
開催地(和) オンライン開催
開催地(英) Online
テーマ(和) 衛星通信技術及び一般(JC-SAT2021:韓国KOSST連催)
テーマ(英)
委員長氏名(和) 石川 博康(日大)
委員長氏名(英) Hiroyasu Ishikawa(Nihon Univ.)
副委員長氏名(和) 井家上 哲史(明大) / 加保 貴奈(湘南工科大)
副委員長氏名(英) Tetsushi Ikegami(Meiji Univ.) / Takana Kaho(Shonan Inst. of Tech.)
幹事氏名(和) 渋谷 惠美(KDDI総合研究所) / 大倉 拓也(NICT)
幹事氏名(英) Megumi Shibuya(KDDI Research) / Takuya Okura(NICT)
幹事補佐氏名(和) 五藤 大介(NTT) / 小泉 雄貴(NHK)
幹事補佐氏名(英) Daisuke Goto(NTT) / Yuuki Koizumi(NHK)

講演論文情報詳細
申込み研究会 Technical Committee on Satellite Telecommunications
本文の言語 ENG
タイトル(和)
サブタイトル(和)
タイトル(英) A potential cause of pulsive noises in receiving BS signals
サブタイトル(和)
キーワード(1)(和/英) フレネルゾーン / Fresnel zone
キーワード(2)(和/英) バイスタティック・レーダー / Bistatic radar
キーワード(3)(和/英) 飛行機 / Aircraft
キーワード(4)(和/英) リモートセンシング / Remote sensing
キーワード(5)(和/英) 降雨 / Precipitation
第 1 著者 氏名(和/英) 西村 竜一 / Ryouichi Nishimura
第 1 著者 所属(和/英) 情報通信研究機構(略称:NICT)
National Institute of Information and Communications Technology(略称:NICT)
第 2 著者 氏名(和/英) 鄭 炳表 / Byeongpyo Jeong
第 2 著者 所属(和/英) 情報通信研究機構(略称:NICT)
National Institute of Information and Communications Technology(略称:NICT)
第 3 著者 氏名(和/英) 薄田 一 / Hajime Susukita
第 3 著者 所属(和/英) 情報通信研究機構(略称:NICT)
National Institute of Information and Communications Technology(略称:NICT)
第 4 著者 氏名(和/英) 高橋 卓 / Takashi Takahashi
第 4 著者 所属(和/英) 情報通信研究機構(略称:NICT)
National Institute of Information and Communications Technology(略称:NICT)
発表年月日 2021-10-07
資料番号 SAT2021-46
巻番号(vol) vol.121
号番号(no) SAT-189
ページ範囲 pp.17-22(SAT),
ページ数 6
発行日 2021-09-30 (SAT)