Design of Rotary Projectile GPS Receiver's Tracking Loop Aided by MIMU

陈跃鹏; 李东光; 杨士义

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Design of Rotary Projectile GPS Receiver's Tracking Loop Aided by MIMU

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- Design of Rotary Projectile GPS Receiver's Tracking Loop Aided by MIMU
- MIMU辅助旋转弹丸GPS接收机跟踪环路设计
- Vol. 31, Issue 2, Pages: 173-177(2010)
- 作者机构：
  
  1. 北京理工大学机电工程与控制国家级重点实验室
  2. 驻中国空空导弹研究院军代表室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2010
- 稿件说明：
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陈跃鹏, 李东光, 杨士义. Design of Rotary Projectile GPS Receiver's Tracking Loop Aided by MIMU[J]. 2010, 31(2): 173-177.
DOI：

陈跃鹏, 李东光, 杨士义. Design of Rotary Projectile GPS Receiver's Tracking Loop Aided by MIMU[J]. 2010, 31(2): 173-177. DOI：

摘要

在GPS导航定位系统中

多普勒频移直接影响接收机的跟踪性能.为了克服多普勒频移的影响

对高速旋转的弹载单天线GPS接收机跟踪环路进行了研究.分析了弹丸旋转产生的复杂多普勒频移的影响因素

给出了多普勒频移的数学模型

提出采用MIMU估计多普勒频移的方法设计二阶载波跟踪环路

建立了环路的模型

并对环路的跟踪性能进行了MATLAB仿真.结果表明:MIMU辅助的跟踪环路与无辅助的跟踪环路比较

带宽窄

能有效地抑制噪声干扰

较好地实现了对旋转信号的跟踪.

Abstract

In GPS navigation and positioning systems

Doppler frequency shift is the key problems that degrade the tracking performance of the receiver.To overcome the influence of Doppler shift

the tracking loop of a single antenna GPS receiver mounted on high speed rotating missiles was studied.The factors of complex Doppler frequency shift produced by rotation were analyzed and the mathematical model of Doppler shift was established.A method that designing second order carrier tracking loop by MIMU assisted Doppler frequency estimation was proposed

the model of tracking loop was established

and the tracking performance of loop was simulated in MATLAB environment.Simulation results show that

comparison to non-aided tracking loop

the MIMU-aided tracking loop can effectively restrain noise and realize the rotation signal tracking with narrow bandwidth.

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references

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