NDLI: Robustness versus accuracy: multipath effects on land mobile satellite navigation

Content Provider	IET Digital Library
Author	Steingass, Alexander Krach, Bernhard Crisci, Massimo
Abstract	Knowledge of performance for different signal options in difficult environments is vital for improving modern satellite navigation systems. Currently, the accuracy of the different transmission signals in realistic multipath environments is still not known in current literature. In this study, different classical and advanced signals have been simulated using an urban multipath channel model standardised by the International Telecommunication Union. For the given multipath channel, signal and receiver effects have been investigated. The performance of GPS C/A and GALILEO open service signals has been compared. Additional simulation of wideband navigation signals lead to the uncovering of an important conflict between robustness and accuracy in terms of signal bandwidth. This conflict is signal inherent and not associated to a particular receiver. As a result of this finding, an improved satellite signal extension for robust urban navigation has been proposed. On the receiver side, pure line-of-sight (LOS) conditions have been identified in which a novel particle filter-based receiver shows a comparable performance as a classical delay locked loop (DLL). In a mixture of LOS and shadowing conditions the particle receiver clearly outperformed the classical DLL. For the classical DLL, critical scenarios have been identified that are often causing a loss of lock.
Starting Page	520
Ending Page	527
Page Count	8
ISSN	17518784
Volume Number	11
e-ISSN	17518792
Issue Number	Issue 3, Mar (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rsn/11/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2016.0361
Journal	IET Radar, Sonar & Navigation
Publisher Date	2016-10-11
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Classical Delay Locked Loop Classical DLL Filtering Method in Signal Processing GALILEO Open Service Signal Performance Global Positioning System GPS C-A Open Service Signal Performance International Telecommunication Union Land Mobile Radio Land Mobile Satellite Navigation Line-of-sight Condition LOS Condition Mobile Radio System Mobile Satellite Communication Modern Satellite Navigation System Improvement Multipath Channel Multipath Effect Multipath Environment Particle Filter Particle Filter-based Receiver Particle Receiver Radio Receiver Receiver Effect Satellite Communication System Shadowing Condition Signal Effect Transmission Signal Urban Multipath Channel Model Wideband Navigation Signal Simulation Wireless Channel
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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