A Multivariable Search Approach to Frequency Assignment

Abstract

A multivariable, non-linear search approach to fre­ quency assignment is presented. The frequency assign­ ment problem is formulated as a multivariable search problem by choosing the objective function, -which is to be minimized by the search algorithm, to be the interference criterion and by choosing the independent variables of the objective function, which are to be selected by the search algorithm, as the operational frequencies of the communi­ cation or radar system. The successful solutions of two radar intersite frequency assignment problems obtained by using optimization techniques are discussed. In the first illustration a frequency assignment minimizing inter­ ference is determined for a deployment of four surveillance radar systems; in the second iUustration, a frequency assignment optimizing the utilization of the spectrum is determined for a deployment of seven surveiUance radar systems.