| Presentation | 2018-08-10 Calculated Distance Error Improvement Based on GPS Received Signal Power in Many Skyscrapers Environments Hayakawa Toshinari, Norihumi Murai, Takatoshi Sugiyama, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent years, positioning using GPS (Global Positioning System) has been widely used and introduced in various systems. However, in environments where skyscrapers stand side by side such as metropolitan Tokyo, it is difficult to receive GPS signals from GPS satellites directly. So, many reflected GPS signals are received. They might make calculated distance errors longer due to their longer pseudo ranges than those of direct signals. Elevation mask is one of existing technologies to improve calculated distance error by not using the reflected signals as possible. However, in many skyscrapers environments, the number of receivable GPS signals might be less than 4 by larger elevation mask. Therefore, it is likely to use the pseudo ranges of the reflected signals positively which is not used by elevation mask and we proposed a pseudo range estimation model that can estimate the number of reflections and the incident angles of the received GPS signals from their received power. By using our proposed estimation model that is possible to approximate the pseudo range of the reflected signal to that of the direct signal. In this paper, we show the improvement the calculated distance error of the proposed method by simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | GPS / Reflection signal |
| Paper # | SAT2018-41 |
| Date of Issue | 2018-08-02 (SAT) |
| Conference Information | |
| Committee | SAT / RCS |
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| Conference Date | 2018/8/9(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Iwate University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless Communications, etc. |
| Chair | Hiroyuki Tsuji(NICT) / Tomoaki Otsuki(Keio Univ.) |
| Vice Chair | Hisashi Sujikai(NHK) / Fumihiro Yamashita(NTT) / Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT DoCoMo) / Fumiaki Maehara(Waseda Univ.) |
| Secretary | Hisashi Sujikai(NTT) / Fumihiro Yamashita(NICT) / Eisuke Fukuda(Hokkaido Univ.) / Satoshi Suyama(NTT) / Fumiaki Maehara |
| Assistant | / Kazushi Muraoka(NTT DOCOMO) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) |
| Paper Information | |
| Registration To | Technical Committee on Satellite Telecommunications / Technical Committee on Radio Communication Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Calculated Distance Error Improvement Based on GPS Received Signal Power in Many Skyscrapers Environments |
| Sub Title (in English) | |
| Keyword(1) | GPS |
| Keyword(2) | Reflection signal |
| 1st Author's Name | Hayakawa Toshinari |
| 1st Author's Affiliation | Kogakuin University(Kogakuin Univ.) |
| 2nd Author's Name | Norihumi Murai |
| 2nd Author's Affiliation | Kogakuin University(Kogakuin Univ.) |
| 3rd Author's Name | Takatoshi Sugiyama |
| 3rd Author's Affiliation | Kogakuin University(Kogakuin Univ.) |
| Date | 2018-08-10 |
| Paper # | SAT2018-41 |
| Volume (vol) | vol.118 |
| Number (no) | SAT-176 |
| Page | pp.pp.67-72(SAT), |
| #Pages | 6 |
| Date of Issue | 2018-08-02 (SAT) |