Novel navigation signal design based on spreading code time shift position modulation

Jiafang KANG; Hongxing WANG; Xiguo LIU; Peilin ZHONG; Bifeng LI

doi:10.11959/j.issn.1000-436x.2020072

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Novel navigation signal design based on spreading code time shift position modulation

Papers | 更新时间：2024-06-05

- Novel navigation signal design based on spreading code time shift position modulation
- Journal on Communications Vol. 41, Issue 4, Pages: 54-61(2020)
- 作者机构：
  
  1. 海军航空大学航空通信教研室，山东烟台 264001
  2. 海军航空大学信号与信息处理山东省重点实验室，山东烟台 264001
  3. 海军工程大学兵器工程学院，湖北武汉 430033
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(61701518)
- DOI：10.11959/j.issn.1000-436x.2020072
  CLC： TN914.41,P228.4
- Online First：2020-04，
  
  Published：25 April 2020
- 稿件说明：
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Jiafang KANG, Hongxing WANG, Xiguo LIU, et al. Novel navigation signal design based on spreading code time shift position modulation[J]. Journal on Communications, 2020, 41(4): 54-61.
DOI：

Jiafang KANG, Hongxing WANG, Xiguo LIU, et al. Novel navigation signal design based on spreading code time shift position modulation[J]. Journal on Communications, 2020, 41(4): 54-61. DOI： 10.11959/j.issn.1000-436x.2020072.

摘要

为进一步提升卫星导航系统的综合性能，在导频（测距）信号与数据信号分离的卫星导航信号设计思想的基础上，基于扩频码优良的自互相关特性，利用扩频码时移位置调制电文、数据信息，提出了基于扩频码时移位置调制的卫星导航信号设计方法。所提方法改变了以往仅利用扩频码相位加载信息的固有模式，大幅提升了数据通道信号的功率利用率。理论分析和仿真结果表明，在不提高导航信号总发射功率的前提下，所提方法既可大幅提高数据信号分量的信息传输速率，也可大幅提高导频信号分量与数据信号分量的功率比，进而综合提高了卫星通信导航系统的传输速率、接收机捕获跟踪性能、定位精度等技术指标。

Abstract

A novel navigation signal design method based on spread code time shift position modulation was proposed

which inherits the idea of separating the pilot signal component and the data signal component

and applies time shift position of the spread code to carry data information.The old pattern of using carrier phase to carry information was changed

the power efficiency of data signal components and the performances of the satellite navigation system were improved.Theoretical analysis and simulation results show that the proposed method can significantly improve the transmission rate of data signal component or power ratio of the pilot signal component to data signal component without increasing the total transmission power.Then

the transmission rate

acquisition and tracking performance

positioning accuracy and other technical indicators of the satellite navigation system can be further improved.

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Keywords

references

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