Polynomial-phase signal source tracking using an electromagnetic vector-sensor

A pre-processing technique is developed to track a polynomial-phase signal using an electromagnetic vector-sensor, which can be collocated or spatially-spread. The performance of the single-forgetting-factor algorithm incorporating the proposed pre-processing approach is improved significantly, and it even surpasses the performance of the multiple-forgetting-factor algorithm in a polynomial-phase source scenario. Simulation results verify the efficacy of the proposed technique.