Distance-dependent threshold for UWB ranging (ワイドバンドシステム)
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概要
- 論文の詳細を見る
Achieving accurate estimation of time of arrival (ToA) is crucial to precise ultra wide band (UWB) ranging performance. The threshold based ToA estimation method is considerably attractive because of its simplicity. In conventional threshold based methods, a single value is optimized as the universal threshold which is independent of the transmitter to receiver (Tx-Rx) distance. We introduce a distance dependent (DD) threshold based method, which is postulated on the fact that power of the direct path decreases as Tx-Rx distance increases. Consequently the threshold value for detecting the direct path peak is a function of Tx-Rx distance. As the value of the threshold in each location can be obtained from standard path loss model, this approach is generic. Ranging analysis of the measured data indicates that the performance of the proposed approach is superior to the fixed threshold.
- 社団法人電子情報通信学会の論文
- 2008-12-04
著者
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Takada Jun-ichi
Graduate School Of Engineering Tokyo Institute Of Technology
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TAKIZAWA Kenichi
National Institute of Information and Communications Technology
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TAKIZAWA Ken-ichi
National Institute of Information and Communications Technology (NICT)
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Dashti Marzieh
Graduate school of Engineering, Tokyo Institute of Technology
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Ghoraishi Mir
The Center for Research and Development of Educational Technology, Tokyo Institute of Technology
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HANEDA Katsuyuki
Helsinki University of Technology, Radio Laboratory
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Takada Jun-ichi
Radio Laboratory Aalto University School Of Science And Technology
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Takada Jun‐ichi
Department Of International Development Engineering Graduate School Of Science And Engineering Tokyo
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Ghoraishi Mir
Radio Laboratory Aalto University School Of Science And Technology
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Dashti Marzieh
Graduate School Of Engineering Tokyo Institute Of Technology
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Takizawa Ken-ichi
Medical Ict Institute National Institute Of Information And Communications Technology
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Haneda Katsuyuki
Radio Laboratory Aalto University School Of Science And Technology
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