JP2004361412A - 信頼領域フィルタリング法を用いた位置推定方法および装置 - Google Patents
信頼領域フィルタリング法を用いた位置推定方法および装置 Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/0252—Radio frequency fingerprinting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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Abstract
【解決手段】 本発明の位置推定方法は、無線信号ドメインおよび空間位置ドメインの各々に対し、別途独立したフィルタ処理を行う。具体的には、まず、実行時における無線信号の生データをフィルタ処理を行って歪んだ無線信号を除去する。続いて、信頼領域(RoC)を所定のアルゴリズムに従って形成する。形成した推定位置候補がRoC内に位置する場合のみ、その推定位置候補を後段の処理に用いる。次に、RoCによりフィルタ処理が施された推定位置候補は、取得した時刻ごとに所定領域に格納される。最後に、各領域から選択された一の推定位置候補を結んで得られる経路のうちでその長さが最短となるものを計算し、この最短経路に基づく計算処理を行うことにより、最終的な位置を決定する。
【選択図】 図5
Description
Claims (2)
- 無線通信環境において位置を推定する方法であって、
前記無線通信環境内に配置された少なくとも2つの送信機から各々無線信号を受信するステップと、
位置計算アルゴリズムを用いて、該受信した無線信号から複数の推定位置候補を算出ステップと、
前記複数の推定位置候補に対応する信頼領域を形成するステップと、
を具備する位置推定方法。 - 複数の送信機から無線信号を受信する受信装置と、
位置計算アルゴリズムを用いて、該受信した無線信号から複数の推定位置候補を算出するプロセッサと、
該算出された複数の推定位置候補に対応する信頼領域を形成するモジュールと、
を具備する位置推定装置。
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US47640103P | 2003-06-05 | 2003-06-05 |
Publications (3)
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JP2004361412A true JP2004361412A (ja) | 2004-12-24 |
JP2004361412A5 JP2004361412A5 (ja) | 2007-07-19 |
JP4499484B2 JP4499484B2 (ja) | 2010-07-07 |
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JP (1) | JP4499484B2 (ja) |
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