Frost’s and Maximin Space-Time Adaptive Processing under Block Rayleigh Fading

Current state-of-the-art global positioning system (GPS) anti-jam technology has relied on a linear-phased antenna array that consists of N antenna elements and a processing unit that performs a phase-destructive sum of any intentional and unintentional jamming up to $N-1$ signals. If this limitation is exceeded, then the global positioning system (GPS) signal will degrade rapidly and become buried in the noise. Hence, alternative anti-jamming technologies have been sought. This paper describes an anti-jam method that can suppress more than $N-1$ jamming signals with a significant reduction in size, weight, and power (SWaP) and no degradation under adaptive white Gaussian noise (AWGN) and a block Rayleigh fading channels.