Abstract
This paper explores the subject of interference suppression for the reliable use of global navigation satellite systems (GNSS). The range of applications of GNSS stretch from commercial use like surveying, automotive navigation systems etc to military applications like navy ships, aircrafts and guided missiles etc. The prevalent use of this technology makes it inflexible to provide reliable services in the presence of massive scale interferences in environment. A new architecture of null steering antenna based upon the technology of Space-Time Adaptive Processing (STAP) with optimized parameters has been proposed in this paper, which can suppress both wideband and narrowband interferences more efficiently with deeper nulls. Furthermore, the new architecture do not require a separate sensor for the reference signal rather it get the reference signal from the first sensor of the auxiliary array. Simulation results shows that the proposed architecture outperforms the conventional STAP techniques for interference suppression and place deeper nulls in direction of interference.

Zeeshan Ahmad, Song Yaoliang. (2015) GNSS Interference Mitigation By Null Steering Antenna Utilizing Space Time Adaptive Processing, Journal of Space Technology , Volume 5, Issue 1.
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