Signal-in-Space Quality Monitoring and Assessment for the First GPS III Satellite

RAO Yong-nan; WANG Meng; KANG Li; YANG De-jin; LU Xiao-chun; WANG Xue

doi:10.3969/j.issn.0372-2112.2020.02.026

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Signal-in-Space Quality Monitoring and Assessment for the First GPS III Satellite

更新时间：2025-07-16

- Signal-in-Space Quality Monitoring and Assessment for the First GPS III Satellite
- Acta Electronica Sinica Vol. 48, Issue 2, Pages: 407-411(2020)
- 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. 中国科学院大学天文学院,北京,101408
  5. 中国科学院国家授时中心,陕西,西安,710600
  6. 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
  7. 中国科学院大学电子电气与通信工程学院,北京,101408
  8. 中国科学院大学天文学院,北京,101408
- 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.0372-2112.2020.02.026
  CLC： TN967.1
- Published Online：25 February 2020，
  
  Published：2020
- 稿件说明：
移动端阅览
RAO Yong-nan, WANG Meng, KANG Li, et al. Signal-in-Space Quality Monitoring and Assessment for the First GPS III Satellite[J]. Acta Electronica Sinica, 2020, 48(2): 407-411.
DOI：

RAO Yong-nan, WANG Meng, KANG Li, et al. Signal-in-Space Quality Monitoring and Assessment for the First GPS III Satellite[J]. Acta Electronica Sinica, 2020, 48(2): 407-411. DOI： 10.3969/j.issn.0372-2112.2020.02.026.

摘要

GPS （Global Positioning System）在新一代卫星载荷中采用了大量新技术，首颗卫星成功发射后，官方尚未系统公布各导航信号的调制方式、复用方法等关键信息，因而其在轨测试阶段的空间信号质量评估具有重要的意义.该文选择地面接收功率、功率分配、相位关系、调制特性和测距性能等评估参数，深入分析了GPS III卫星L1频点空间信号质量，剖析了该卫星上多种新技术的信号特征.论文成果对其它GNSS（Global Navigation Satellite System）卫星载荷设计及信号体制设计等方面具有重要的参考意义.

Abstract

GPS III (Global Positioning System) satellites have adopted a large number of new technologies in payload. After the successful launch of the first satellite

the official has not yet published effective information such as the modulation method of each navigation signal and multiplexing method. Therefore

it is meaningful to evaluate the signal-in-space quality. In this paper

the evaluation parameters such as ground receiving power

signal component power distribution

phase relationship

modulation characteristics and ranging biases were selected. Signal-in-space quality of GPS III satellite L1 frequency was analyzed comprehensively

and the characteristics of various new technologies adopted by the satellite were analyzed. The results of this paper have important technical reference value for other GNSS (Global Navigation Satellite System) satellite payload design and signal system design.

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