Application of adaptive simulated annealing to blind channel identification with HOC fitting

Abstract

A higher order cumulant (HOC) fitting approach is a powerful technique for blind identification of nonminimum phase channels. Owing to the fact that HOC cost functions are multimodal, global optimisation techniques offer the important advantage of avoiding local minima. An adaptive simulated annealing (ASA) algorithm is applied to optimise an HOC cost function. A simulation study demonstrates that this ASA is accurate and has a fast convergence rate compared with standard simulated annealing (SA).