Signal Simulator for Global Navigation Satellite System
Mohamed Ibrahim Ahmed Mahmoud EL Hawary;
Abstract
For the time being there are many Global Navigation Satellite Systems (GNSSs) in the world that have both navigation and timing capabilities. Most of the GNSSs share a great part in the design of both the transmitter and receiver. So, it became necessary to use flexible tools in the system design to facilitate both the modernization plans of the current systems and the launching of new systems. This thesis introduces a new look for the simulation and implementation of Galileo signals using a graphical programming language; which is Simulink.
Galileo is the European independent GNSS that provids a highly accurate and guaranteed global positioning and timing services under civilian control. It is inter-operable with the American GNSS, which is the Global Positioning system (GPS), and the Russian GNSS; which is the GLONASS.
The successful design and implementation of the Galileo receiver strongly depends on to which extent we could simulate the Galileo signals to test the functionality of the receiver. During the design stage of the receiver it is preferable to use simulated signals than real signals to be able to control the properties of the received signal. Moreover, the Interface Control Document (ICD); which defines the main requirements of the Galileo system, recommends introducing flexible designs because the system is still under development and is subject to modifications.
So, this thesis adds a step on the route toward a clear, easy and transparent simulation and implementation of Galileo transmitter implemented with the Software Defined Radio (SDR) technology. In general, the graphical environment makes the relation between the system modeling, system simulation, and system implementation clearer and easier to debug, because we can put test points everywhere and obtain immediate results. Also, using a graphical programming language enables the designer to finish the simulation of the complete system in a relatively short time. This will facilitate the simulation and implementation of the Galileo receiver.
Galileo is the European independent GNSS that provids a highly accurate and guaranteed global positioning and timing services under civilian control. It is inter-operable with the American GNSS, which is the Global Positioning system (GPS), and the Russian GNSS; which is the GLONASS.
The successful design and implementation of the Galileo receiver strongly depends on to which extent we could simulate the Galileo signals to test the functionality of the receiver. During the design stage of the receiver it is preferable to use simulated signals than real signals to be able to control the properties of the received signal. Moreover, the Interface Control Document (ICD); which defines the main requirements of the Galileo system, recommends introducing flexible designs because the system is still under development and is subject to modifications.
So, this thesis adds a step on the route toward a clear, easy and transparent simulation and implementation of Galileo transmitter implemented with the Software Defined Radio (SDR) technology. In general, the graphical environment makes the relation between the system modeling, system simulation, and system implementation clearer and easier to debug, because we can put test points everywhere and obtain immediate results. Also, using a graphical programming language enables the designer to finish the simulation of the complete system in a relatively short time. This will facilitate the simulation and implementation of the Galileo receiver.
Other data
| Title | Signal Simulator for Global Navigation Satellite System | Other Titles | محاكى إشارات نظم الأقمار الصناعية الملاحية | Authors | Mohamed Ibrahim Ahmed Mahmoud EL Hawary | Issue Date | 2014 |
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