Antenna subarray division and adaptive beamforming

In this paper, adaptive digital beamforming techniques using sparse antenna subarray division are studied. Based on the model of sparse antenna arrays, three antenna subarray architectures are compared. The criteria were realization simplicity and adaptive antijamming performance against multiple jammers. One method, that used the transformed constraint of subarray into conventional array constraint, is presented for the adaptive beamforming of the subarray. The results of the method are compared and some useful conclusions are provided. Computer simulation results demonstrate the performance of this method