联合相位差变化率和多普勒频率变化率的单站无源定位方法  

Single-station Passive Localization Method Based on Joint Phase Difference Rate and Doppler Frequency Rate

作　　者：何东升 宋杰 娄树理 HE Dongsheng;SONG Jie;LOU Shuli(School of Physics and Electronic Information,Yantai University,Yantai 264005,China;Naval Aviation University,Yantai 264001,China)

机构地区：[1]烟台大学物理与电子信息学院,山东烟台264005 [2]海军航空大学,山东烟台264001

出　　处：《探测与控制学报》2025年第1期80-87,101,共9页Journal of Detection & Control

基　　金：国家自然科学基金资助项目(61971433);山东省泰山学者计划资助项目(tsqn202211247)。

摘　　要：相较于传统的单站无源定位方法,基于相位差变化率的单站无源定位方法具备快速且高精度的优势,但是无法有效定位速度未知的目标,因此,在相位差变化率定位方法的基础上,联合了多普勒频率变化率定位方法。首先通过分析相位差及其变化率,获得与角度相关的信息,然后利用多普勒频率及其变化率获取目标辐射源的速度,将所得速度信息与相位差变化率定位方法相结合,计算目标辐射源详细信息,并进行误差精度分析。在仿真实验中,验证提出的算法在准确定位静止和运动目标辐射源方面的优越性,径向距离相对误差为0.8507%。同时,进行了影响定位精度的因素的仿真分析。Compared to traditional single-station passive localization methods,the single-station passive localization method based on phase rate of change offers the advantages of rapid and high-precision positioning.However,this method is ineffective for locating targets with unknown velocities.Therefore,this study combines the Doppler frequency rate of change localization method with the phase rate of change localization method.Initially,by analyzing the phase difference and its rate of change,angle-related information is obtained.Subsequently,the target's velocity is determined using Doppler frequency and its rate of change.By integrating the velocity information with the phase rate of change localization method,detailed information about the target's radiation source is calculated,and error analysis is conducted.Experimental simulations validate the proposed algorithm's superior performance in accurately locating stationary and moving target radiation sources,with a radial distance relative error of 0.8507%.Additionally,a simulation analysis of factors affecting localization accuracy is performed.

关 键 词：单站无源定位 相位差变化率定位 多普勒频率变化率定位 联合定位 

分 类 号：TN97[电子电信—信号与信息处理]