Maximum signal-to-noise ratio GPS anti-jam receiver with subspace tracking

We propose an anti-jam GPS receiver which suppresses interference by projecting the received signal on the noise subspace obtained via subspace tracking. The resulting interference-free signal is then processed by a beamformer, whose weight vector is obtained by maximizing the signal-to-noise ratio at the beamformer output. It is shown that the proposed receiver can effectively eliminate interference and enhance the GPS signals at the receiver output.