ABSTRACT
This paper introduces a new structure based on the MUSIC algorithm and linearly constrained
minimum variance (LCMV) to highly suppress the jammers to the GPS receiver. This structure is
capable of adjusting the weights of the antenna array in real time to respond to the signals coming
from the desired directions while highly suppress the jammers coming from the other directions.
The simulations were performed for fixed and moving jammers. It indicates that this structure can
give deeper nulls to the jammers directions, up to 120 dB nulls depths for fixed jammers and more
than 99 dB depths for the moving one. These nulls are very deep related to that attained by
MUSIC algorithm alone especially when the jammer signal power to the GPS signal is low.