一种唯相波束赋形的快速方法

A Fast Phase-Only Beam Shaping Method for Array Pattern Synthesis

针对平面阵唯相加权波束赋形算法收敛速度慢的问题,提出了一种平面阵的唯相加权波束赋形的级数展开法。该方法用一组基函数的加权和函数表示阵列的激励相位。通过优化和函数中的加权系数实现阵列快速波束赋形。仿真分析表明该方法的收敛速度明显快于以单元激励相位为优化变量的常规波束赋形方法。

A series expansion method for phase-only beam shaping of planar array is proposed for methods of phase-only shaping with slow convergency.In this method the phase distribution of the array excitation is described by a weighted sum of basis functions.By optimizing the weights of the sum,rather than the phase of each element,the fast beam shaping can be achieved.Simulation results show that the convergence rate of this method is faster than that of the conventional method.