A Novel Approach for Designing Linear Constraints in Adaptive Arrays
C.-Y. Tseng, L.J. Griffiths · 2005
This paper describes an approach for designing linear constraints in adaptive arrays which allows arbitrary specification of the quiescent response (the array response when only white noise is present). The first step of this approach is to use available pattern synthesis techniques for determining weights which result in a desired quiescent pattern. A set of linear constraints is then derived which, when the array operates in the adaptive mode, produces this quiescent response and also prevents signals of interest from being cancelled. This design method also suggests that the key to designing linear constraints in adaptive arrays lies in developing efficient algorithms to achieve well-behaved array responses for nonadaptive arrays.