Improved blind beamforming algorithm of smart antenna
一种改进的智能天线盲波束形成算法*

An improved blind beamforming of smart antenna used by wireless communication system was presented.Nonlinear constraint method was used to optimize the weight vector of adaptive pattern to improve the robust characteristics and to optimize the position and the deepth of null.The final solution of weight vector was different from alterably diagonal loading and the unknown parameter in optimal solution could be obtained easily and accurately.The SINR(signal to interference plus noise ratio) of the new algorithm had robust characteristics for random steering vector errors and was not sensitive to power change of SOI(signal of interest).Simulation results prove the validity of the new algorithm.