| Presentation | 2003/7/23 Nighttime Ionospheric Propagation of MF Radio Waves Used for DGPS Koki YAMAGATA, Toshiya TABATA, Isamu NAGANO, Satoshi YAGITANI, Tadashi IWASAKI, Isamu MATSUMOTO, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | DGPS signal are transmitted on maritime MF radio beacon signals (300 kHz frequencies) to enhance the accuracy of GPS, and also to broadcast the warning information such as unscheduled outage of GPS. For the efficient frequency utilization for DGPS stations, the same frequency is assigned to the DGPS stations more than a few hundred km away from one another. However the radio waves from the different stations with the same frequency interfere one another locally at nighttime. In this study, we calculate the sky wave field strengths of MF(300kHz) over short distance (1000km) by using Full Wave technique which calculates the electromagnetic fields in the ionosphere, and measure the actual field strengths over the Japan sea of a maritime radio beacon signal(305kHz) transmitted from the Hamada DGPS station. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | DGPS / Ionospheric reflection wave / Full Wave |
| Paper # | A・P2003-49 |
| Date of Issue |
| Conference Information | |
| Committee | AP |
|---|---|
| Conference Date | 2003/7/23(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Antennas and Propagation (A・P) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Nighttime Ionospheric Propagation of MF Radio Waves Used for DGPS |
| Sub Title (in English) | |
| Keyword(1) | DGPS |
| Keyword(2) | Ionospheric reflection wave |
| Keyword(3) | Full Wave |
| 1st Author's Name | Koki YAMAGATA |
| 1st Author's Affiliation | Faculty of Engineering, Kanazawa University() |
| 2nd Author's Name | Toshiya TABATA |
| 2nd Author's Affiliation | Faculty of Engineering, Kanazawa University |
| 3rd Author's Name | Isamu NAGANO |
| 3rd Author's Affiliation | Faculty of Engineering, Kanazawa University |
| 4th Author's Name | Satoshi YAGITANI |
| 4th Author's Affiliation | Faculty of Engineering, Kanazawa University |
| 5th Author's Name | Tadashi IWASAKI |
| 5th Author's Affiliation | Japan Coast Guard Research Center |
| 6th Author's Name | Isamu MATSUMOTO |
| 6th Author's Affiliation | Japan Coast Guard Research Center |
| Date | 2003/7/23 |
| Paper # | A・P2003-49 |
| Volume (vol) | vol.103 |
| Number (no) | 230 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |