Compass/Beidou-2 Studies: Acquisition Of Real-field Satellite Signals

摘要

With the ever-increasing interests and demands of navigation and positioning services, Global Navigation Satellite Systems (GNSS) has been drawing more and more attention. Each every country or continent is trying to establish their own GNSS system. Compass, also known as Beidou-2, which is developed by China is one of the most popular GNSS in Asian continent. Compass project was started in 2000 and until now, there has been rather few public information regarding Compass. In order to test and analyse Compass, it is necessary to obtain the existing information about Compass. In addition, acquisition and navigation are the main parts of Compass system so that to acquire the signal and extraction the navigation message in a fast and accurate way is very important.In this thesis, the Compass signals and receivers as well as three important segments of Compass systems are discussed. In addition, possible methods to achieve acquisition of Compass signals are illustrated. Meanwhile, a simulator is carried out to simulate the acquisition of Compass real-time field signals. The simulation results show that the parallel code phase search algorithm can be used to acquire Compass signals.