A Novel Evaluating method for New GNSS Signal Deformation

DOI

10.2991/wartia-18.2018.16How to use a DOI?

Keywords

GNSS; Signal-In-Space; Waveform Deformation; Asymmetry Evaluation

Abstract

It is well known that the traditional evil waveform evaluating method for Binary Phase Shift Keying (BPSK) or Quadrature Phase Shift Keying (QPSK) is the 2nd Order Step (2OS) thread model adopted by the International Civilian Aviation Organization (ICAO). Although there are some new methods to evaluate new Global Navigation Satellite Systems (GNSS) signals, they are all for the analysis of the width and amplitude of signal waveforms. No research has been done on waveform symmetry yet. It has been observed through experiments that waveform asymmetry could also result in tracking errors, range biases, and position errors in GNSS receivers. In order to better evaluate the characteristics of most new navigation signals, the mathematical models for GNSS signals are presented and the extended general thread models are provided from the traditional 2OS thread model. A novel Waveform Rising and Falling Edge Symmetry (WRaFES) model determined for evaluating the asymmetry of GNSS signal waveform is proposed and introduced in details, as well as the evaluating method for Binary Offset Carrier (BOC) correlation curves. WRaFES model characteristics are analyzed in details from the aspects of time domain waveform, correlation domain and S curve bias. Finally, taking the first modernized BeiDou Navigation Satellite System (BDS) satellite M1-S B1Cd signal as an example, the thresholds for signal deformation detection and experimental results from these proposed methods are given. Simulation results and test results show that WRaFES model is very effective not only in detecting waveform asymmetry with high accuracy, but also in analyzing the relationship between waveform asymmetry and tracking error.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - Chengyan He
AU  - Ji Guo
AU  - Xiaochun Lu
AU  - Li Kang
AU  - Meng Wang
PY  - 2018/09
DA  - 2018/09
TI  - A Novel Evaluating method for New GNSS Signal Deformation
BT  - Proceedings of the 4th Workshop on Advanced Research and Technology in Industry (WARTIA 2018)
PB  - Atlantis Press
SP  - 84
EP  - 100
SN  - 2352-5401
UR  - https://doi.org/10.2991/wartia-18.2018.16
DO  - 10.2991/wartia-18.2018.16
ID  - He2018/09
ER  -