【摘要】 文中针对自适应波束形成算法对指向误差敏感的缺点,将由先验知识得到的角度进行均匀扩展,然后将该范围内所有角度的方向矢量进行累加,得到一个新的平均导向矢量,并将该矢量代替原始的波束形成算法的导向矢量,从而得到一种较稳健的自适应算法。经过证明,文中新的导向矢量可以通过对原有导向矢量的数值计算得到,并没有增加运算量,计算机仿真的结果,证明了该算法可以有效工作于存在指向误差的环境下。算法的稳健性得到了提高。更多还原

【Abstract】 Aiming at the shortcoming that the adaptive beamforming algorithm is sensitive to the pointing error,the pa- per presents a robust adaptive algorithm which spread uniformly the angle obtained by the prior knowledge,then oh- rained a new average vector by accumulating the steering vector of all angles inside the spread range,and substitute it into the original beamforming algorithm.The analysis shows that the new steering vector can be obtained by the trans- formation of the original steering vector,and do not increase the computational load much.The result of the computer simulation verifies this algorithm can operate effectively in the presence of the pointing error,increases the rohusmess of the algorithm.更多还原