国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

In the field of personal navigation and location-based services (LBS),how to achieve low-cost,high reliability,high accuracy,continuous indoor positioning is still a hot topic. However,relying on a single technology,indoor positioning results are difficult to meet the positioning requirements. This paper fuses INS and RFID through PF. PDR algorithm is used in low-precision INS in which the number of steps and the size of steps can be estimated by Peak detection and Weinberg algorithm. Weighted KNN algorithm is used in RFID according to position information. Simulation results show that integrated position mode not only corrects the accumulated error and drift of INS,but also achieves independent,reliable and continuous position information. Positioning accuracy is better than single model and the system performance optimizes greatly.