UWB多目标异步定位及算法

基于到达时间法(TOA)和超宽带信息帧往返传输(RTT)原理,提出一种新的UWB多目标异步定位及其算法.系统节点均具有收发功能,在测量某个节点时,往返传输(RTT)的UWB帧只需使用一次,也不需要保证接收节点时钟严格同步的光纤连接等系统条件的限制.与同步方法相比较,本方法和算法具有低复杂性、一般性和实用性.仿真结果也表明其定位精度完全可以与同步TOA法或TDOA法相媲美.

Asynchronous UWB Localization Method and Algorithm for Multiple Targets

Based on TOA(Time of Arrival) principle and UWB frame RTT(Round-Trip Transmission),a new asynchronous UWB localization Method and its Algorithm were proposed for multiple targets.Every node in the system is assumed as a transceiver and UWB frame is only twice utilized for single RTT for one node measurement.Unlike general synchronous UWB localization algorithm,the algorithm can perform the localization with low complexity,more universality and wide practicability,since it does not require strict synchronization and other system conditions.Simulation results reveal that the proposed UWB localization algorithm based on single RTT can achieve closely comparable localization accuracy of basic synchronous TOA and TDOA(Time Difference of Arrival) algorithms.