講演抄録/キーワード |
講演名 |
2019-02-13 15:40
GISを用いたKa帯移動体の遮蔽エリアの推定 ○鄭 炳表・菅 智茂・高橋 卓(NICT) SAT2018-73 |
抄録 |
(和) |
東日本大震災を契機に,NICTはWINDS用小型車載地球局を開発し,運用している.災害発生直後,緊急消防援助隊等と一緒の移動を想定し,開発された本地球局は,Ka帯で,時速100Kmで移動しながら24Mbpsのデータ通信が可能であり,消防関係や防衛関係などから期待されている技術である.しかし,移動中において,建物,電柱のような人工物や街道樹等の影響を受け,通信断が発生する.そこで,仙台市において,地理情報システムと建物データを用いてKa帯の遮蔽エリアを推定した.また,推定した遮蔽エリアの精度の確認するため,Ka帯移動体であるWINDS用小型車載地球局を用いて,走行時のビーコンC/N0を取得し,概ね一致していることを確認した.そこで,推定地域を日本全国に広げ,WINDS遮蔽エリアを推定し,都市間の比較を行った. |
(英) |
Based on the experience of the Great East Japan Earthquake, National Institute of Information and Communications Technology (NICT) has developed a mobile earth station for the Wideband InterNetworking engineering test and Demonstration Satellite "KIZUNA" (WINDS) which can be communicated by simple operation. Assuming movement immediately after the disaster with the disaster countermeasure organizations such as a fire department emergency relief team, this mobile earth station for the WINDS can transmit 24 Mbps data while moving at 100 km/h. In addition, as this mobile earth station is excellent in usability, it is technology for which the fire departments and defence bodies concerned have great expectations. In operation, however, the mobile earth station cannot be communicated with satellite due to shadowing by buildings, tree, utility pole etc. Therefore, we created a shadowing model using GIS and building database for Ka-band in urban area, and tried to estimate the shadowing area for Ka-band in Sendai, Japan. To verify the accuracy of the shadowing area estimated, after driving near Sendai station, we conducted a field study and grasped the received beacon C/N0. Although there are areas that are estimated as unable to communicate and the vice versa, we find both results to have a correspondence relation. Then, the estimated city was expanded throughout Japan, and the shadowing area for Ka-band was estimated, and comparison between cities was carried out. |
キーワード |
(和) |
衛星通信 / 移動体 / Ka帯 / 地理情報システム / 遮蔽エリア / / / |
(英) |
Satellite Communications / Mobile earth station / Ka-band / Geographic Information System / Shadowing area / / / |
文献情報 |
信学技報, vol. 118, no. 442, SAT2018-73, pp. 93-98, 2019年2月. |
資料番号 |
SAT2018-73 |
発行日 |
2019-02-06 (SAT) |
ISSN |
Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
PDFダウンロード |
SAT2018-73 |
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