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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