Realistic GPS Coverage Prediction for Dual-Polarized Controlled Reception Pattern Antennas

Null steering arrays for antijam GPS applications are modeled using dual-polarized antenna elements. Realistic performance is evaluated using the effective carrier-to-noise ratio to determine the percentage of the upper hemisphere, for which GPS satellites are recoverable in the presence of interference. The impact of array size and jammer power level on antijam performance is evaluated, and average results are compared to the literature. The realistic metric is shown to predict higher coverage than previously reported.