一种空间谱估计测向中的低旁瓣电平波束合成算法

A Low Sidelobes Pattern Synthesis Algorithm for Spatial Spectrum Estimation

基于低旁瓣电平波束合成技术,是在旁瓣区域利用大量的干扰信号控制波束合成,通过迭代形成最优化权向量,主波束指向期望信号方向,旁瓣达到设计要求,使得空间谱估计测向的性能大大提高。该技术不仅适用于园阵也同样适用于线阵。计算机仿真结果证明了这种方法的正确性和有效性。

The synthesis technique is based on adaptive array theory .The main beam is pointed in the proper direction by choosing the steering vector for that direction. The sidelobes are controlled by introducing a large number of interfering signal at many angles throughout the sidelobe region. The algorithm iterates on the interfere powers until a suitable pattern is obtained. The paper provides the method of the pattern synthesis among sensors of uniformly spaced linear arrays or circular arrays. The properties of the system have been improved a lot. The computer simulation results demonstrate that this approach is correct and effective.