An Integration Method for Wireless Location Using Built-in Sensors of Mobile Phones and TDOA Landmarks

• Item type: Journal(1)
• 公開日: 2012-07-15
• タイトル: An Integration Method for Wireless Location Using Built-in Sensors of Mobile Phones and TDOA Landmarks
• タイトル / 言語: en
• タイトル: An Integration Method for Wireless Location Using Built-in Sensors of Mobile Phones and TDOA Landmarks
• 言語: eng
• キーワード / 主題Scheme: Other
• キーワード / 主題: [特集：社会を元気にするICT] built-in sensors of mobile phones, TDOA landmarks
• 資源タイプ / 資源タイプ識別子: http://purl.org/coar/resource_type/c_6501
• 資源タイプ: journal article
• 著者所属: KDDI R&D Laboratories, Inc.
• 著者所属: KDDI CORPORATION
• 著者所属: KDDI R&D Laboratories, Inc.
• 著者所属(英): en
• 著者所属(英): KDDI R&D Laboratories, Inc.
• 著者所属(英): en
• 著者所属(英): KDDI CORPORATION
• 著者所属(英): en
• 著者所属(英): KDDI R&D Laboratories, Inc.
• 著者名: Mingmei, Li; Naoki, Imai; Kiyohito, Yoshihara
• 著者名(英): Mingmei, Li; Naoki, Imai; Kiyohito, Yoshihara
• 論文抄録 / 内容記述タイプ: Other
• 論文抄録 / 内容記述: Non-line-of-sight (NLOS) signal propagation is the major source of error in wireless Time Difference of Arrival (TDOA) indoor systems. Even if enough landmarks (LMs) can be deployed by the service providers or system designers, the existing methods experience the location accuracy problem when few line-of-sight (LOS) measurements can be detected. Under the condition that the total number of TDOA measurements satisfies the minimum triangulation requirements (≧ 3), this paper proposes a new integrated location method. The proposed method integrates the user's step length and count from the built-in sensors of mobile phone into the wireless TDOA location systems. Firstly, it detects LOS/NLOS measurements using the user's step length and count. Secondly, it integrates the previous location and step length as supplementary LM and measurement to estimate the location, when two LOS measurements are detected. Simulation results show that the proposed method detects LOS/NLOS measurements at a higher ratio. Performance of location errors depends on the number of detected LOS measurements. The proposed method achieves lower location errors when two LOS measurements are detected.; ------------------------------; This is a preprint of an article intended for publication Journal of; Information Processing(JIP). This preprint should not be cited. This; article should be cited as: Journal of Information Processing Vol.20(2012) No.3 (online); DOI http://dx.doi.org/10.2197/ipsjjip.20.749; ------------------------------
• 論文抄録(英) / 内容記述タイプ: Other
• 論文抄録(英) / 内容記述: Non-line-of-sight (NLOS) signal propagation is the major source of error in wireless Time Difference of Arrival (TDOA) indoor systems. Even if enough landmarks (LMs) can be deployed by the service providers or system designers, the existing methods experience the location accuracy problem when few line-of-sight (LOS) measurements can be detected. Under the condition that the total number of TDOA measurements satisfies the minimum triangulation requirements (≧ 3), this paper proposes a new integrated location method. The proposed method integrates the user's step length and count from the built-in sensors of mobile phone into the wireless TDOA location systems. Firstly, it detects LOS/NLOS measurements using the user's step length and count. Secondly, it integrates the previous location and step length as supplementary LM and measurement to estimate the location, when two LOS measurements are detected. Simulation results show that the proposed method detects LOS/NLOS measurements at a higher ratio. Performance of location errors depends on the number of detected LOS measurements. The proposed method achieves lower location errors when two LOS measurements are detected.; ------------------------------; This is a preprint of an article intended for publication Journal of; Information Processing(JIP). This preprint should not be cited. This; article should be cited as: Journal of Information Processing Vol.20(2012) No.3 (online); DOI http://dx.doi.org/10.2197/ipsjjip.20.749; ------------------------------
• 書誌レコードID / 収録物識別子タイプ: NCID
• 書誌レコードID / 収録物識別子: AN00116647
• 書誌情報: 情報処理学会論文誌; 巻 53, 号 7, 発行日 2012-07-15
• ISSN / 収録物識別子タイプ: ISSN
• ISSN / 収録物識別子: 1882-7764