抄録
Recently, adaptive arrays have been studied in order to improve communication quality of mobile communication systems. The least mean square algorithm is one of techniques which can be applied to adaptive arrays. However, this method does not sufficiently exploit the degree of freedom of the step parameter of the recursive rule in the case where a priori information on the input signal is available. This paper proposes a design method of the step parameter such that the convergence of the recursive rule is guaranteed against the uncertainty of the input signal. The design problem of the step parameter is reduced to a semidefinite program which is efficiently solvable.
