摘要
宽带信号测向算法是传感器阵列定位技术中的难点问题。提出了一种波束域的宽带测向定位算法,利用波束空间变换实现信号的聚焦、降维,利用子空间正交投影抑制干扰,无需方位预估计,信号处理在低维空间进行,有较低的计算复杂度。仿真实验表明,算法以较低的计算量实现了与阵元空间算法相近的性能,并且表现出良好的抗干扰能力。
A low complexity wideband signal location method with interference suppression is proposed.Data are focused while mapped into a lower dimension beamspace through a transformation.And subspace projection method is incorporated to get nulls steering to the interference.Simulation shows that the proposed method offers improvements in interference suppression and estimation performance with less computation.
出处
《现代防御技术》
北大核心
2008年第5期157-160,170,共5页
Modern Defence Technology
关键词
传感器阵列
宽带信号
波束空间
正交投影
干扰抑制
sensor array
wideband signal
bream zone
orthogonal projection
interference suppression