摘要
对信号到达角(DOA)的估计是超宽带定位的关键技术之一。传统的到达角估计方法都基于窄带信号,已不能直接应用在超宽带场合,因此提出了一种基于频域模型的宽带子空间谱估计方法。仿真结果表明,该方法能准确估计超宽带信号的到达角。
Direction of arrival （DOA） estimation is one of the key technologies of ultra-wideband （UWB） location. The bandwidth of UWB signal is so extremely broad that traditional DOA estimation methods which are based on narrow-band signal are not suited for it. Thus, a direction of arrival （DOA） estimation method based on the frequency domain model of UWB array signals is presented. Simulation result shows that the method is effective for the DOA estimation.
出处
《电路与系统学报》
CSCD
北大核心
2007年第1期48-50,共3页
Journal of Circuits and Systems
关键词
超宽带(UWB)
到达角
频域模型
ultra wide bandwidth
direction of arrival
frequency domain model
