稳定的天线阵自适应波束形成方法研究

摘要

Sample matrix inversion (SMI) and loadingii samplejjmatrixj (inversion (LSMI) based on MVDR method, and MinMax method based on convex optimization are applied in robust adaptive beam forming of Antenna Array. Simulation results show that LSMI is better than SMI when steering vector error existed. MinMax method has lower side lobe gain than LSMI' s and SMI' s.%运用基于MVDR的样本协方差矩阵求逆(SMI),对角加载技术样本协方差矩阵求逆(LSMI),以及基于凸优化准则的最小最大准则(MinMax)方法对天线阵的自适应波束形成的稳定性进行了研究.仿真结果表明,在存在导向矢量误差的情况下,LSMI方法比SMI稳定性有所提高；在自适应旁瓣电平输出方面,MinMax方法具有较大的改善.