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A Study on Efficient UWB Positioning Error Compensation Technique  

Park, Jae-Wook (숭실대학교 정보통신전자공학부 통신 및 신호처리연구실)
Bae, Seung-Chun (숭실대학교 정보통신전자공학부 통신 및 신호처리연구실)
Lee, Soon-Woo (한국전기연구원)
Kang, Ji-Myung (한국전기연구원)
Lee, Won-Cheol (숭실대학교 정보통신전자공학부 통신 및 신호처리연구실)
Abstract
To alleviate positioning error using wireless ultra-wideband (UWB) is primary concern, and it has been studied how to reduce the positioning error effectively. Thanks to many repeated transmissions of UWB signals, we can have a variety of selections to point out the most precise positioning result. Towards this, scanning method has been preferred to be used due to its simplicity. This exhaustive method firstly fixes the candidate position, and calculates the sum of distances from observed positions. However, it has tremendous number of computations, and the complexity is more serious if the size of two-dimensional range is the larger. To mitigate the large number of computations, this paper proposes the technique employing genetic algorithm and block windowing. To exploit its superiority, simulations will be conducted to show the reduction of complexity, and the efficiency on positioning capability.
Keywords
UWB Positioning; TDOA; Error Compensation; Genetic Algorithm; Block Windowing;
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