| 講演抄録/キーワード |
| 講演名 |
2021-11-11 11:20
[招待講演]Observations of the ionosphere by a GNSS network and application for GNSS-based navigation ○Susumu Saito(ENRI, MPAT) SANE2021-33 |
| 抄録 |
(和) |
The ionosphere causes propagation delay on signals of Global Navigation Satellite System (GNSS) which results in pseudorange errors. It is important not only for single-frequency GNSS users but also for dual-frequency high-precision GNSS users. Electronic Navigation Research Institute (ENRI) has been operating real-time ionosphere analysis by using 1-Hz sampled GNSS data from GEONET (GNSS Earth Observation Network System) which is the Japanese nationwide GNSS reference stations network operated by the Geospatial Information Authority of Japan. It includes mapping of ionospheric TEC (total electron content) perturbation and reconstruction of the three-dimensional (3-D) ionospheric density profiles. TEC perturbation maps are generated every 5 minutes with about 2 minutes latency. The three-dimensional ionospheric density profiles are reconstructed every 15 minutes with about 6 minutes latency. These systems can be utilized not only for ionospheric sciences but also for improving GNSS performance. They are also used for radio propagation prediction. |
| (英) |
The ionosphere causes propagation delay on signals of Global Navigation Satellite System (GNSS) which results in pseudorange errors. It is important not only for single-frequency GNSS users but also for dual-frequency high-precision GNSS users. Electronic Navigation Research Institute (ENRI) has been operating real-time ionosphere analysis by using 1-Hz sampled GNSS data from GEONET (GNSS Earth Observation Network System) which is the Japanese nationwide GNSS reference stations network operated by the Geospatial Information Authority of Japan. It includes mapping of ionospheric TEC (total electron content) perturbation and reconstruction of the three-dimensional (3-D) ionospheric density profiles. TEC perturbation maps are generated every 5 minutes with about 2 minutes latency. The three-dimensional ionospheric density profiles are reconstructed every 15 minutes with about 6 minutes latency. These systems can be utilized not only for ionospheric sciences but also for improving GNSS performance. They are also used for radio propagation prediction. |
| キーワード |
(和) |
GNSS / Navigation / Ionosphere / Real-time monitoring / / / / |
| (英) |
GNSS / Navigation / Ionosphere / Real-time monitoring / / / / |
| 文献情報 |
信学技報, vol. 121, no. 236, SANE2021-33, pp. 7-11, 2021年11月. |
| 資料番号 |
SANE2021-33 |
| 発行日 |
2021-11-04 (SANE) |
| 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 |
SANE2021-33 |