The Anti-jamReceiver (AGR) designed by supports the Tactical Tomahawk missile program. The system uses PPS (Y-code) signals, operating on both the L1 and L2 frequencies. When configured with a multi-element Controlled Reception Pattern Antenna (CRPA), the AGR’s post-correlation nulling techniques allow continued track in the presence of high levels of hostile jamming. This patented concept also provides beam steering, to further enhance the tracking thresholds, and to mitigate the “spurious nulls” that can degrade the performance of other nulling implementations (e.g., pre-correlation). The AGR sequentially tracks up to eight visible s, and provides high-quality pseudorange/delta pseudorange (PR/DPR) measurements corrected for the effects of selective availability. The Tactical Tomahawk’s navigation processor then uses the PR/DR measurements to yield a high-performance navigation solution.