Householder-based anti-jamming navigation receiver structures

This paper addresses the problem of mitigating intentional jamming in navigation receivers using smart antennas and space-time processing. Three different anti-jamming receiver structures employing computationally efficient multistage Wiener filter processing and Householder transforms are presented. Space-time processing provides sufficient number of degrees of freedom for cancelling large number of wideband jammers. The performances of the receiver structures in terms of signal-to-interference plus noise ratio (SINR) and bit error rate (BER) are compared in simulation using demanding jamming scenarios. The robustness and computational complexity of the methods are considered as well.