Abstract:An array anti-interference method based on virtual array superposition principle is proposed in this paper. A phased array is decomposed into a main array and n virtual arrays. The low side-lobe level of the main array is achieved by using Taylor amplitude weights and the main beam is aligned to the direction of the incoming wave by adjusting corresponding phase. The virtual arrays also use Taylor amplitude weights and generate N nulls on the side-lobe of the main array. The side-lobe cancellation in the array will be realized using the method and the virtual arrays with low side-lobe levels have a small impact on the main beam of the array. The weights of the complete array are obtained by superimposing the main array and the virtual arrays. In order to validate the proposed method, a 24-elements uniform linear array with three interferences is analyzed. The three nulls are imposed to the interference directions and the null depth levels are less than -100 dB, which show that the proposed method is effective.