在介绍均匀线阵发射数字波束形成技术的基础上,对预置零点的控制问题进行了研究,将发射波束的零点控制描述为一个约束优化问题,并利用Lagrange乘子法得到了发射波束的最优权值。仿真结果表明,文中给出的方法对预置零点的发射波束控制是非常有效的。

The principle of transmitting Digital Beamforming(DBF) of Uniform Linear Arrays(ULA) is introduced.The given null control method for transmitting DBF is studied.Of the proposed method,the given null control is treated as a constrained optimum problem,and the optimal weight vector of transmitting DBF is derived by Lagrange multiplier approach.Finally,the computer simulations are done.The simulation result shows that the proposed method is practicable and effective.

TN820