講演名 2014-10-23
A Measure of Estimated Accuracy Using Singular Values for TOA Location System(ICSANE 2014(International Conference on Space, Aeronautical and Navigational Electronics))
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抄録(和)
抄録(英) In a TOA (Time of Arrival) system such as the GPS, a target location can be estimated from several range (distance) measurements between a target location and a reference point at known location. However, accuracy of estimated target location is very sensitive to target and reference points geometry. In the present TOA system, the DOP (Dilution of Precision) is used as a measure for unique solution and the estimated location accuracy. However, the DOP is calculated only from the diagonal elements of the 4×4 matrix A^TA (A^T is the transpose of A) and it is assumed that A^TA is invertible and variances of a range measurement error are the same value. Here, the n×4 matrix A can be calculated from n reference points and the nominal value of the target's location. In this paper, we provide a measure of estimated target location accuracy for a TOA system. This measure is the minimum singular value λ_(A) of a matrix A. We show we could obtain good estimation when λ_(A) is large.
キーワード(和)
キーワード(英) TOA / GPS / range measurement / singular value / error analysis / estimated accuracy
資料番号 SANE2014-78
発行日

研究会情報
研究会 SANE
開催期間 2014/10/15(から1日開催)
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開催地(英)
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委員長氏名(和)
委員長氏名(英)
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副委員長氏名(英)
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講演論文情報詳細
申込み研究会 Space, Aeronautical and Navigational Electronics (SANE)
本文の言語 ENG
タイトル(和)
サブタイトル(和)
タイトル(英) A Measure of Estimated Accuracy Using Singular Values for TOA Location System(ICSANE 2014(International Conference on Space, Aeronautical and Navigational Electronics))
サブタイトル(和)
キーワード(1)(和/英) / TOA
第 1 著者 氏名(和/英) / Yoshio KOSUGE
第 1 著者 所属(和/英)
Electronic Navigation Research Institute:University of Electro-Communications
発表年月日 2014-10-23
資料番号 SANE2014-78
巻番号(vol) vol.114
号番号(no) 264
ページ範囲 pp.-
ページ数 6
発行日