DOA Estimation with Triply Primed Arrays Based on Fourth-Order Statistics

A triply-primed array (TPA) is configured with three mutually primed integers, which has the degree-of-freedom on the order of their product, in the estimation of direction-of-arrivals (DOAs) of multiple quasi-stationary signals. Simulation results verify that the proposed TPA can detect more incident signals with higher accuracy than its compatible counterparts.