Low-Power Galileo/GPS Single-Shot Receiver Architecture for Mobile Terminals

Christoph Kandziora

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Christoph Kandziora, Low-Power Galileo/GPS Single-Shot Receiver Architecture for Mobile Terminals (2014), Logos Verlag, Berlin, ISBN: 9783832595357

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Description / Abstract

The content of this book reflects the results of the work carried out during my dissertation. For the first time the functionality of a GNSS receiver has been combined with the information gathered from a time-code receiver. For high efficient signal processing the architecture given here relies on the features of the DCF77 time-code signal.

The combination of time synchronization and navigation signals eliminates the main drawback of common assisted GNSS receiver architectures, its massive usage of processing power. Nevertheless the advantages are preserved, namelya short Time-to-First-Fix at low power consumption.

Based on the common Single-Shot receiver architecture, the extension by the time information together with navigation message and approximate position gives the opportunity to forecast the GNSS satellite signals. Consequently a reduction of the width of the search window for the code phases of the satellite signals can be realized.

Together with fundamentals of satellite based navigation and the transmission of time information via long-wave radio signals this work gives an insight into the newly developed architecture. Additionally results of complex system simulations are presented.

Table of content

  • BEGINN
  • 1 Introduction
  • 1.1 Motivation
  • 1.2 Goals and Organization of this Work
  • 2 Global Navigation Satellite Systems
  • 2.1 Principle of Satellite Navigation
  • 2.2 NAVSTAR GPS
  • 2.3 Galileo
  • 3 State-of-the-Art GNSS Receiver Architectures
  • 3.1 Acquisition and Tracking Receiver Architecture
  • 3.2 Single-Shot Receiver Architecture
  • 3.3 Search Space versus Time-to-First-Fix
  • 4 Long-Range Time Synchronization
  • 4.1 DCF77 Signal-in-Space Characteristics
  • 4.2 Time Synchronization via LW Radio Signals
  • 5 DAGNSS Receiver Architecture
  • 5.1 System Overview
  • 5.2 Analog-Radio-Frequency (RF) Frontend Architectures
  • 5.3 Digital Baseband Signal Processing Architecture
  • 5.4 Host Hardware and Operating System
  • 5.5 Positioning Software
  • 6 Systemsimulation
  • 6.1 Simulation Setup
  • 6.2 Simulation Results
  • 7 Summary and Outlook

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