超宽带应急定位坐标基准动态构建技术研究

Research on dynamic construction technology of UWB emergency positioning coordinate datum

针对超宽带(UWB)在应急定位中坐标基准如何快速自主构建的问题,该文研究了坐标基准动态自主构建技术。基于云计算、定位终端、监控端和算法库等建立UWB应急定位系统作为坐标基准动态构建的基础;根据递推定位思想提出了递推式动态组网坐标基准构建技术;引入多维定标定位算法并提出了集中式动态组网坐标基准构建技术,通过一次组网、统一解算完成基准构建。结果表明,UWB移动基站组成的定位基准组网定位误差小于0.1 m,可满足UWB应急定位实时基准构建需求。该研究旨在完善应急定位坐标基准构建技术体系,具备一定的理论与实践价值。

Aiming at the difficult problem of quickly autonomous construction of ultra-wideband(UWB)emergency positioning coordinate datum,coordinate datum dynamic autonomous construction technology was studied in this paper.UWB emergency positioning system based on cloud computing,positioning terminal,monitoring terminal and algorithm library was established as the basis for coordinate datum dynamic construction;according to the idea of recursive positioning,a recursive coordinate datum construction technology for dynamic networking was proposed;a centralized dynamic networking coordinate datum construction technology was proposed by introducing multi-dimensional scaling map algorithm,which completed the datum construction through one networking and unified solution.The results showed that the positioning error of the positioning datum network composed of UWB mobile anchors was less than 0.1 m,which could meet the needs of real-time datum construction of UWB emergency positioning.This study aimed to improve the technical system of emergency positioning coordinate datum construction,which had certain theoretical and practical value.