Fast null steering algorithm for arbitrary two-dimensional power inversion arrays

In the paper, a fast source tracking algorithm for an arbitrary two-dimensional power inversion adaptive array is presented and investigated. By solving two sets of linear equations to calculate the preprocessing needed, the algorithm tracks the environment through adaptively adjusting the array response zeros directly in a time-multiplexed manner to minimise the output power. The main advantages of the algorithm are that it has good tracking behaviour and the zero or source positions are directly available.