【摘要】 提出一种改进的最小方差无畸变响应(MVDR)波束形成方法,通过调节波束形成的权向量设计中的增强因子来改善其方位分辨力,并且不以牺牲信号与干扰+噪声比增益为代价.仿真结果表明,所提出的方法可以有效改善MVDR波束形成的方位分辨力,且不损失MVDR波束形成的信号与干扰+噪声比增益.更多还原

【Abstract】 An approach was proposed to improve the minimum variance distortionless response(MVDR)beam-forming bearing resolution by designing an enhancement factor in its weight vector which is known to be a principal factor in resolution improvement under a high signal-to-noise ratio(SNR)condition.This method can provide improved bearing resolution not at the expense of the signal-to-noise plus interference ratio gain.The simulation results show that this method can effectively improve the MVDR beam-forming bearing resolution without losing the signal-to-noise plus interference ratio gain.更多还原