Research And Hardware Implementation Of Tracking And Acquisition Technology Of GNSS Receiver

With the rapid development of Global Navigation Satellite System(GNSS), spaceborne GNSS receiver technology has become a hotspot of research. Future applications of spaceborne receivers will concentrate on following types: high earth orbit satellites, such as geostationary earth orbit(GEO) satellite and high eccentric orbit(HEO) satellite. High earth orbit satellites have many applications such as land & sea communications, data tracking & relay, meteorological observation, live TV, education and disaster warning, etc. Aiming at the high earth orbit GNSS receiver applications, this dissertation in depth discussed the weak GNSS signal acquisition & tracking technology, and provided the inertial aided high sensitivity GNSS receiver design method, combined with the high sensitivity GNSS receiver engineering prototype development. Finally, the receiver hardware platform was designed optimally. According to the test, which shows that receiver architecture and some crit ical specifications satisfy the technical requirements, and it can be a foundation for the future space application.