Analysis of multipath rejection performance in GNSS receiver using direct RF sampling technology

Multipath rejection performance is more and more important to modern GNSS receiver. Direct RF sampling technique is increasingly applied to GNSS receiver. Many researches have been focused on advantage of this new technology. However, analysis of multipath rejection performance is rare. In this paper, multipath rejection performance of GNSS receiver when using direct RF sampling technology is discussed. It is shown the performance could be highly enhanced with help of increased bandwidth by using direct RF sampling technology, especially referring to new GNSS signal based on BOC modulation.