Research on Galileo E1 Signal Quality Assessment Method Based on High Gain Receiving System

KANG Li; RAO Yong-nan; SU Chen-geng; SHI Hui-hui; YANG De-jin; HE Cheng-yan; WANG Meng

doi:10.3969/j.issn.0372-2112.2019.08.011

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Research on Galileo E1 Signal Quality Assessment Method Based on High Gain Receiving System

更新时间：2025-07-16

- Research on Galileo E1 Signal Quality Assessment Method Based on High Gain Receiving System
- Acta Electronica Sinica Vol. 47, Issue 8, Pages: 1685-1691(2019)
- 作者机构：
  
  1. 中国科学院国家授时中心,陕西,西安,710600
  2. 中国科学院精密导航定位与定时技术重点实验室,陕西,西安,710600
  3. 中国科学院大学电子电气与通信工程学院,北京,101408
  4. 北京跟踪通信研究所,北京,100094
  5. 中国人民解放军国防科技大学电子与信息工程学院,湖南,长沙,410073
  6. 中国科学院国家授时中心,陕西,西安,710600
  7. 中国科学院精密导航定位与定时技术重点实验室,陕西,西安,710600
  8. 中国科学院大学电子电气与通信工程学院,北京,101408
  9. 北京跟踪通信研究所,北京,100094
  10. 中国人民解放军国防科技大学电子与信息工程学院,湖南,长沙,410073
- 作者简介：
- 基金信息：
  
  National Science and Technology Major Project of the Ministry of Science and Technology (No.GFZF0306ZXWX004HT01)
- DOI：10.3969/j.issn.0372-2112.2019.08.011
  CLC： TN967.1
- Published Online：25 August 2019，
  
  Published：2019
- 稿件说明：
移动端阅览
KANG Li, RAO Yong-nan, SU Chen-geng, et al. Research on Galileo E1 Signal Quality Assessment Method Based on High Gain Receiving System[J]. Acta Electronica Sinica, 2019, 47(8): 1685-1691.
DOI：

KANG Li, RAO Yong-nan, SU Chen-geng, et al. Research on Galileo E1 Signal Quality Assessment Method Based on High Gain Receiving System[J]. Acta Electronica Sinica, 2019, 47(8): 1685-1691. DOI： 10.3969/j.issn.0372-2112.2019.08.011.

摘要

Galileo系统在E1频点采用Interplex调制方式播发导航信号，由于缺乏E1信号功率分配和伪码序列等先验信息，一般的研究人员只能开展有限的信号质量特性研究.针对该问题，提出一套基于高增益天线的空间信号质量评估方法，实现了E1授权信号的解析，完善了E1信号评估体系.运用相关功率法来解决信号分量功率比问题，采用跟踪结果解决相位偏差估计问题，提出加权组合平均和码相位平均相结合的新型时域波形分离方法，克服了电文和码多普勒对时域波形特性评估的影响，采用

曲线过零点偏差（S-curve offset Biases，SCB）等参数进行信号测距偏差定量评估.通过该方法对Galileo GSAT-0214卫星进行了评估，结果显示：该卫星E1各信号分量SCB小于0.2ns，测距性能优异，其复用效率达到了97.8%，优于GPS L1信号和北斗三号系统（BDS-3） B1信号.

Abstract

Galileo system uses Interplex modulation to broadcast navigation signals at the E1 frequency. Due to the lack of prior information such as E1 signal power allocation and pseudo-code sequences

researchers can only carry out limited signal quality characteristics studies. Aiming at this problem

this paper proposes a signal-in-space quality assessment method based on high gain antenna

which realizes the analysis of E1 authorization signal and perfects the E1 signal evaluation system. The related power method is proposed to solve the signal component power ratio problem. The tracking result is used to solve the phase deviation estimation problem. A new time domain waveform separation method combining weighted combination averaging and code phase averaging is proposed

which overcomes the influence of message and code Doppler on time domain waveform characteristics evaluation. The S-curve offset Biases (SCB) parameters are used to quantitatively evaluate the signal ranging deviation. In this paper

the Galileo GSAT-0214 satellite is evaluated by this method. The results show that the signal component SCB of E1 is less than 0.2 ns

and the ranging performance is excellent. The multiplexing efficiency is 97.8%

which is better than GPS L1 signal and BOS-3 system B1 signal.

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