摘要
本文视均匀线列阵为连续线阵的均匀离散采样，将宽带方位估计中的空间重采样思想用到恒定束宽波束形成器设计中，并从滤波器设计的观点出发，将阵元权系数等效为空间滤波器的脉冲响应，提出用恢复公式计算不同频率所对应的阵元权系数，从而利用频域波束形成的方法完成恒定束宽波束形成器设计。
In this paper, the linear equal-spaced array is regarded to be the discrete sampling of the continuous array, then the concept of spatial sampling in the wideband DOA estimation can be used here to design the constant beamwidth beamformer. From the viewpoint of the filter design, the weight of the sensors is as the impulse respond of the spatial filtef, so a representation to compute the weight is naturally obtained by the way of the interpolating tunctio.In the end, the constant beamwidth beamforming is realized in the frequency domain.
出处
《信号处理》
CSCD
1998年第A12期1-5,共5页
Journal of Signal Processing
关键词
空间重采样
恒定束宽
波束形成器
信号处理
Spatial resampling, Constant beamwidth, Spatial filter, Beamforming
