Receiver Acquisition Algorithms and Their Comparisons for BOC Modulated Satellite Navigation Signal

2012 ◽  
Author(s):  
Pooja V. Thakar ◽  
Hiren Mewada
Keyword(s):  
Satellite Navigation ◽  
Navigation Signal

scholarly journals SIMULATION OF EGNOS SATELLITE NAVIGATION SIGNAL USAGE FOR AIRCRAFT LPV PRECISION INSTRUMENT APPROACH

Aviation ◽  
2021 ◽  
Vol 25 (3) ◽  
pp. 171-181
Author(s):  
Michal Hvezda
Keyword(s):  
Satellite Navigation ◽  
Positive Outcome ◽  
Statistical Characteristics ◽  
The Czech Republic ◽  
Navigation Data ◽  
Navigation Signal ◽  
Air Transport Industry ◽  
Satellite Signal ◽  
System Prototype ◽  
Specific Scenario

Satellite navigation has become a very important topic in the air transport industry along with its application in instrument approach procedures. Recently, extracted statistical characteristics of the European Geostationary Navigation Overlay Service (EGNOS) satellite signal have been made available from real measurements in the Czech Republic. The numerical modeling approach is taken for a feasibility study of automatic aircraft control during the Localizer Performance with Vertical Guidance (LPV) precision approach based on such navigation data. The model incorporates Kalman filtering of the stochastic navigation signal, feed-back control of L-410 aircraft dynamics and the calculation of approach progress along the predefined procedure. Evaluation of the performance of the system prototype is performed using the scenarios developed with a strong interest in altitude control. The specific scenario is focused on a curved approach which offers a huge advantage of the approaches based on the Satellite-based Augmentation System (SBAS) compared to ones with the Instrument Landing System (ILS). Outputs of simulation executions are statistically analyzed and assessed against predefined navigation performance goals equivalent to ILS categories with a positive outcome.

Real-Time Validation for Satellite Navigation Signal Simulation System

2014 ◽  
Vol 667 ◽  
pp. 153-156
Author(s):  
Jian Bing Tang ◽  
Qing Song Zhao ◽  
Ya Bing Zha
Keyword(s):  
Real Time ◽  
Time Synchronization ◽  
Complex Structure ◽  
Satellite Navigation ◽  
Simulation System ◽  
Signal System ◽  
The Real ◽  
Time Performance ◽  
Navigation Signal ◽  
Signal Simulation

The satellite navigation signal system is so useful that it can provide autonomous geo-spatial positioning with global coverage. The satellite navigation signal simulation system possesses the traits of large scale, complex structure and various model types, and the real-time performance of the simulation system is exigent. The simulation real-time performance index will be analyzed and tested roundly. Firstly, the framework of the satellite navigation signal simulation system is introduced. Secondly, several index such as simulation step-time, time function and network data transfers, which can affect the real-time performance of the simulation system, are analyzed. Finally, four real-time performance indexes such as frame overflow, the definition of frame synchronization and time synchronization, the precision of time synchronization etc, are tested and validated in detail. By analysis and test, the result shows that this simulation system possessing higher real-time performance and it can meet the real-time simulation requirement of the simulation system. This simulation system can also be used to validate the real satellite navigation signal system.

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