| Presentation | 2012/3/5 Navigation Enhancement Using GPS Line-of-sight Detection in City Sections ETSUKO KATSUDA, AKIRA UCHIYAMA, HIROZUMI YAMAGUCHI, TERUO HIGASHINO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent years, many mobile phones are equipped with GPS, which is essential for our daily life. It is well known that GPS error increases in urban areas due to multipath and shadowing caused by buildings. In this research, we propose a navigation enhancement method using GPS Line-Of-Sight (LOS) detection. We exploit the facts that surrounding buildings change depending on positions, and that GPS signal status changes depending on positions of GPS satellites and GPS receiver, and its surrounding buildings. The proposed method builds fingerprints of GPS LOS status for each position based on building information. Location estimation is performed by fingerprint matching of estimated GPS LOS status. For robust estimation of GPS LOS status against the complex GPS signal reception, we eliminate unreliable estimation results based on offline learning. The performance evaluation using a real data set obtained around Osaka station shows that the proposed method can achieve the average error of 17.9m at the probability of 0.9. |
| Keyword(in Japanese) | (See Japanese page) |
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| Paper # | Vol.2012-MBL-61 No.28,Vol.2012-UBI-33 No.28 |
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| Committee | MoMuC |
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| Conference Date | 2012/3/5(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Mobile Multimedia Communications(MoMuC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Navigation Enhancement Using GPS Line-of-sight Detection in City Sections |
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| 1st Author's Name | ETSUKO KATSUDA |
| 1st Author's Affiliation | Graduate School of Information Science and Technology, Osaka University() |
| 2nd Author's Name | AKIRA UCHIYAMA |
| 2nd Author's Affiliation | Graduate School of Information Science and Technology, Osaka University:Japan Science and Technology Agency, CREST |
| 3rd Author's Name | HIROZUMI YAMAGUCHI |
| 3rd Author's Affiliation | Graduate School of Information Science and Technology, Osaka University:Japan Science and Technology Agency, CREST |
| 4th Author's Name | TERUO HIGASHINO |
| 4th Author's Affiliation | Graduate School of Information Science and Technology, Osaka University:Japan Science and Technology Agency, CREST |
| Date | 2012/3/5 |
| Paper # | Vol.2012-MBL-61 No.28,Vol.2012-UBI-33 No.28 |
| Volume (vol) | vol.111 |
| Number (no) | 476 |
| Page | pp.pp.- |
| #Pages | 7 |
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