AN OPTIMAL DEPLOYMENT METHOD OF UWB POSITIONING BASE-STATION
Keywords: UWB Positioning, Optimized Base-Station Deployment, Genetic Algorithm, Position Dilution of Precision, Sharing-Value
Abstract. Aiming at the prominent problem of high deployment cost of UWB (Ultra Wideband) positioning system and the waste of resources caused by repeated coverage of UWB base-station signals, the optimal deployment of the location and number of UWB positioning base stations is studied. Using Genetic Optimization Algorithm to optimize the objective function with Position Dilution of Precision (PDOP) and base-station Sharing-Value. The simulation and experimental results show that for the optimization of the location of UWB base stations, the three-dimensional average positioning error of the optimized layout method can be reduced by at least 0.3m compared with other typical layout methods; for the optimization of the number of base stations, the number by the optimized layout method is significantly lower than the typical layout method and decreases more as the actual base station deployment area increases. Therefore, the performance of the proposed method for optimal deployment of UWB positioning base stations is fully verified, which provides a reference for the optimal deployment of UWB positioning base stations in practical applications.