A two-dimensional nulling broaden algorithm based on the truncated cone array

Adaptive beam forming is one of the most main measures to neutralize the active interference. It has an excellent anti-interference effect with the interference which is static or its position is slower changed. When the interference´s position changes rapidly, the update rate of weight vector cannot cope with its change rate and could lead to a worse effect of anti-interference, even disable the algorithm. Based on truncated cone array, a two points distribution model that disturbance of interference´s position follows is established, and a two-dimensional nulling broaden algorithm is mathematically derived. This algorithm can restrain fast-moving interferences effectively by building necessary prior parameters according to its features. Computer simulations show the effectiveness of the proposed algorithm.