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基于扩展卡尔曼滤波的全球导航卫星系统矢量跟踪建模与仿真
引用本文:曾广裕,申强,李东光,何新. 基于扩展卡尔曼滤波的全球导航卫星系统矢量跟踪建模与仿真[J]. 兵工学报, 2015, 36(3): 530-538. DOI: 10.3969/j.issn.1000-1093.2015.03.022
作者姓名:曾广裕  申强  李东光  何新
作者单位:(1.北京理工大学 机电工程与控制国家级重点实验室北京 100081;2.中国兵器工业信息中心北京 100089)
摘    要:针对现有公开资料缺乏对全球导航卫星系统(GNSS)矢量跟踪算法具体滤波跟踪控制过程的详细分析,建立了矢量延迟/频率锁定环(VDFLL)跟踪模型并对模型线性化过程进行推导。重点分析了矢量VDFLL跟踪算法时序逻辑控制问题,同时针对VDFLL无法实现对载波相位锁定等问题,提出了一种串联式锁相环(PLL)电文解调模型。建立了以软件接收机为平台的矢量VDFLL模型,并进行了半实物仿真验证。仿真结果表明,所建矢量VDFLL控制模型不仅正确地实现对接收机状态信息的最优估计,同时具有良好的动态跟踪性能。

关 键 词:兵器科学与技术   矢量延迟/频率锁定环   矢量跟踪   扩展卡尔曼滤波   卫星定位   建模  
收稿时间:2014-06-04

Modeling and Simulation on GNSS Vector Tracking Loop Based on Extended Kalman Filter
ZENG Guang-yu,SHEN Qiang,LI Dong-guang,HE Xin. Modeling and Simulation on GNSS Vector Tracking Loop Based on Extended Kalman Filter[J]. Acta Armamentarii, 2015, 36(3): 530-538. DOI: 10.3969/j.issn.1000-1093.2015.03.022
Authors:ZENG Guang-yu  SHEN Qiang  LI Dong-guang  HE Xin
Affiliation:(1.National Key Laboratory of Science and Technology on Electomechanical Dynamic Control, Beijing Institute of Technology,Beijing 100081, China; 2.Information Center of China North Industries Group Corporation, Beijing 100089, China)
Abstract:Considering a limited public information about analysis of GNSS vector tracking algorithm control process, a vector delay/frequency lock loop (VDFLL) tracking model is established, and a derivation on the model’s linearization process is proposed.The sequential control logic of vector tracking algorithmis analyzed. For the fact that VDFLL cannot lock the carrier phase, a message demodulation mode based on series phase-locked loop (PLL) is put forward. And a vector VDFLL model is implemented on the platform of a software receiver. The simulation results indicate that the controlling model not only can output correct and optimal estimate for receiver state information, but also has an excellentdynamic tracking performance.
Keywords:ordnance science and technology  VDFLL  vector tracking  extended Kalman filter  satellite positioning  modeling
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