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| 基于AF和UKF联合估计技术的高动态GPS信号捕获方法研究 | |
| 引用本文： | 刘志远, 周晓东, 王新, 曲朝霞,.基于AF和UKF联合估计技术的高动态GPS信号捕获方法研究[J].电子器件,2008,31(6). |
| 作者姓名： | 刘志远 周晓东 王新 曲朝霞 |
| 作者单位： | 1. 海军航空工程学院工程控制系,山东,烟台,264001;济南军区军械雷达修理所,济南,250022 2. 海军航空工程学院工程控制系,山东,烟台,264001 3. 济南军区军械雷达修理所,济南,250022 4. 济南大学控制科学与工程学院,济南,250022 |
| 基金项目： | 中国航天科技集团公司装备研制项目 |
| 摘 要： | 分析了高动态环境给接收GPS信号带来的问题,研究了一种适应高动态环境GPS信号快速捕获方法.该方法基于模糊函数(AF)和Unscented卡尔曼滤波(UKF)的联合估计技术对GPS信号的伪码延时和多普勒频率进行估计.仿真比较了UKF和AF联合估计方法与MLE方法的估计性能,仿真结果表明该方法在保证跟踪精度的前提下提高了GPS信号的捕获速度. |
| 关 键 词： | 高动态 捕获 |
Research on the Method of Acquiring High Dynamic GPS Signal Based on the Union of AF and UKF Technology |
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| LIU Zhi-yuan,ZHOU Xiao-dong,WANG Xin,QU Zhao-xia.Research on the Method of Acquiring High Dynamic GPS Signal Based on the Union of AF and UKF Technology[J].Journal of Electron Devices,2008,31(6). | |
| Authors: | LIU Zhi-yuan ZHOU Xiao-dong WANG Xin QU Zhao-xia |
| Affiliation: | LIU Zhi-yuan1,ZHOU Xiao-dong1,WANG Xin2,QU Zhao-xia31.Department of Control Engineering,Naval Aeronautical , Astronautical University,Yantai ShangDong 264001,China,2.Jinan Military Area Ordnance Radar Repair Shop,Jinan 250022,3.School of Control Science , Engineering,Jinan University |
| Abstract: | The problems of receiving GPS signal in high dynamic circumstance are analyzed,and a method of acquiring high dynamic GPS signal based on the union of Ambiguity Function(AF) and Unscented Kalman Filtering(UKF) technology is studied too.Through this method the pseudo-code time delay and the Doppler frequency of GPS signal could be estimated at the same time.Compared with the MLE,the acquiring performance of this union estimating method was analyzed.And simulation results show that its acquisition speed of GP... |
| Keywords: | GPS AF UKF |
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