Initial value independent optimisation for flat-top power pattern synthesis using non-uniform linear arrays

A multi-stage optimisation method for solving the nonlinear least square error problem in flat-top power pattern synthesis using non-uniform linear arrays is presented. The optimisations are conducted from low to high order in eigenspace, and without the requirement of multidimensional initial value. Simulations show the robustness of the method over a conventional method dependent on initialisation.