最小方差信号无畸变响应(MVDR)波束形成具有最佳的信号保护、干扰消除和噪声降低能力,即信号/(干扰+噪声)比增益最大,它的能量输出作为一种波数谱(方位)估计器,其估计精度或分辨力受着声场信噪比因素的限制.本文提出一种新的改进MVDR波束形成方位分辨力的方法,它可以调节这种波束形成器权向量中的增强因子(等价于改善声场的信噪比条件),从而改进其方位分辨能力,并且不以牺牲信号/(干扰+噪声)比增益为代价。 The minimum variance signal MVDR beamforming has the best signal protection, interference cancellation and noise reduction capability, ie, the signal / (interference + noise) gain is maximized, and its energy output is estimated as a wave number (azimuth) The estimation accuracy or resolution is limited by the signal-to-noise ratio of the sound field.This paper presents a new method to improve the resolution of the MVDR beamforming azimuth resolution, which can adjust the enhancement factor in this kind of beamformer weight vector At the signal-to-noise ratio conditions that improve the sound field) to improve its azimuth resolution without sacrificing signal / (interference + noise) gain.