Anti-jamming of Beidou navigation based on polarization sensitive array

Polarization sensitive arrays can suppress the interferences by taking advantage of differences in polarization domain while the interferences and desired signals are from the same direction. In this paper, a 4-element dual-linear-polarized array is used to realize the anti-jamming function in joint spatial-time-polarization domain. A Right-Hand Circular Polarization (RHCP) constraint is added to the Linear Constraints Minimum Variance (LCMV) criterion to ensure the satellite signals gain. The influence of interferences impinging elevation angles and polarizations on desired signals is also analyzed.