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.