【摘要】 在干扰入射方向,自适应天线阵方向图会自动产生零陷,从而实现抗干扰的功能.基于最小均方误差准则,应用一种改进的自适应算法对线天线阵进行方向图综合.对主副瓣施加人为干扰,使其产生预定变化,改进了对期望电平的计算,使得算法更为简化,同时可以实现对不等间距阵列的方向图综合,而且能够按设计要求有效地控制主瓣电平和副瓣电平,使其达到预期的效果,克服了传统算法的诸多不足,仿真结果显示算法很好的完成设计要求,从而表明算法具有较大的实际应用价值.更多还原

【Abstract】 An adaptive array is able to form a pattern null in the dirction of an interfering signal,which gives it anti-jamming capability.An improved adaptive algorithm based on minimum mean-square error is applied to pattern synthesis of linear arrays.The mainlobes and sidelobes are controlled by introducing a large number of interfering signals at many angles throughout their region.The algorithm is improved in compatation of expectational level,and thus makes compatation of simplified.The algorithm can complete pattern synthesis for nomuniform arrays and can yield mainlobes and sidelobes meeting a specified criterion.It overcomes shortcomings of the traditional technique.The simulation results show that the algorithm completes the required design very well,so providing significant practical value.更多还原