Study on tracking loops of INS-aided GPS in complex environment

ZHAO Lin; ZHAO Hong-bin; YAN Chao

doi:10.13873/j.1000-97872011.10.003

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Study on tracking loops of INS-aided GPS in complex environment

更新时间：2025-09-11

- Study on tracking loops of INS-aided GPS in complex environment
- Vol. 30, Issue 10, Pages: 22-25(2011)
- 作者机构：
  
  哈尔滨工程大学自动化学院
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872011.10.003
  CLC： P228.4
- Published：2011
- 稿件说明：
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[1]赵琳,赵洪斌,闫超.复杂环境下INS辅助GPS跟踪环路研究[J].传感器与微系统,2011,30(10):22-25.

ZHAO Lin, ZHAO Hong-bin, YAN Chao. Study on tracking loops of INS-aided GPS in complex environment[J]. 2011, 30(10): 22-25.
[1]赵琳,赵洪斌,闫超.复杂环境下INS辅助GPS跟踪环路研究[J].传感器与微系统,2011,30(10):22-25. DOI： 10.13873/j.1000-97872011.10.003.

ZHAO Lin, ZHAO Hong-bin, YAN Chao. Study on tracking loops of INS-aided GPS in complex environment[J]. 2011, 30(10): 22-25. DOI： 10.13873/j.1000-97872011.10.003.

摘要

为实现超紧INS/GPS组合接收机跟踪高动态、微弱GPS信号

分析了超紧组合的基本结构

并根据载波环路噪声与带宽的关系

研究并设计了一种INS辅助GPS接收机载波和码跟踪环路的具体实现方案。整个环路进行了仿真。结果表明:载噪比为45dB/Hz时

载波和码环带宽可降至2

0.03Hz;而在满足带宽大于或等于20

0.5 Hz的条件下

环路能在加速度为5 gn、加加速度为±20 gn/s的高动态环境下实时有效地跟踪载噪比为30 dB/Hz的弱GPS信号。

Abstract

In order to realize ultra-tight INS-GPS integration receiver tracking high dynamic and weak GPS signal

the architecture of the ultra-tight INS-GPS integration system is discussed.According to the relation between noise and bandwidth of carrier wave loop

a specific realization scheme for carrier wave of INS-aided GPS receiver and code tracking loop is studied and designed.The overall loop is simulated.The computer test results validate that the carrier wave and bandwidth of code loops can be down to 2

0.03 Hz.When the carrier to noise ratio is 45 dB/Hz;when the bandwidth are above or equal to 20

0.5 Hz

the loops can effectively track the weak signal of 30 dB /Hz in high dynamic scene of acceleration 5gn and jerk ±20 gn/s.

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references

GNSS接收机在惯性速度辅助下跟踪环路的研究 [J]. 余忠清,张捷,龚诚. 无线通信技术 . 2008(01)

超紧密组合下GPS/INS跟踪回路的结构及性能分析 [J]. 高翔,刘兴堂. 战术导弹技术 . 2007(01)

GPS原理与应用[M]. 电子工业出版社 , [美]ElliottD.Kaplan著, 2002

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