基于时差频差的无人机群协同定位模型研究  

Research on Cooperative Positioning Model of UAV Group Based on TDOA and FDOA

作　　者：杜晶 杨玫 吕洁 DU Jing;YANG Mei;LV Jie(College of Basic Sicence,Naval Aviation University,Yantai 264001)

机构地区：[1]海军航空大学航空基础学院,烟台264001

出　　处：《舰船电子工程》2020年第7期65-68,共4页Ship Electronic Engineering

摘　　要：论文针对无人机群协同定位目标辐射源的问题,提出了建立时差(TDOA)频差(FDOA)定位模型,并且利用该模型解决2架无人机构成的无人机群协同定位辐射源位置的问题。首先,将无人机接收到的时域信息利用傅立叶变换转换为频域信息;接下来,根据无人机的位置、速度并及频域信息计算时间差与频率差,从而建立起时差频差定位模型;最后,利用模型进行Matlab仿真,估计出辐射源的大致位置坐标为(109765,32701,0)。并根据定位过程,进一步分析误差产生的原因。In this paper,the problem of establishing TDOA and FDOA positioning model is proposed for the problem of co-located target radiation source of UAV group,and this model is used to solve the problem of accurately positioning the radiation source position of the UAV group. First,the time domain information received by the UAV is converted into frequency domain information by Fourier transform. Next,the time difference and frequency difference is calculated based on the position,speed and frequency domain information of the UAV,thus a time difference frequency difference positioning model is established. Finally,the model is used for Matlab simulation,the approximate positional coordinates of the radiation source are estimated to be(109765,32701,0).According to the positioning process,the cause of the error is further analyzed.

关 键 词：时差 频差 无人机群 傅立叶变换转 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]