This correspondence presents a RELAX (RELAXation-based) algorithm for
angle, polarization, and waveform estimation of completely polarized n
arrowband electromagnetic plane waves arriving at a uniform Linear co-
centered orthogonal loop and dipole (COLD) array. We use numerical exa
mples to demonstrate the performance of the RELAX algorithm far parame
ter estimation with the COLD array and compare it with the performance
of the MODE (Method of Direction Estimation) algorithm. We show that
this RELAX algorithm can outperform MODE and yet be computationally fa
ster than MODE.