%0 Journal Article
%T Beamforming of UWB Pulses Based on Multi-rate Filter Bank<br>基于多速率滤波器组的UWB脉冲波束形成方法
%A Wang Min
%A Yang Shu-yuan
%A Wu Shun-jun
%A <br>王 敏
%A 杨淑媛
%A 吴顺君
%J 电子与信息学报
%D 2006
%I 
%X In usual spatial-time processing for diversity reception of UWB pulses, the channel delays are not easy to be implemented accurately. This paper firstly discusses the principle of UWB pulse array beamfonning. Then a beamforming scheme is presented based on multi-rate filter bank, which is suitable for UWB pulse signals. The proposed method avoids the hardness of delays control in time domain, and can obtain the uniform frequency invariant array response in such a wideband for UWB signals. The way of realizing the multi-rate filtering is analyzed in detail, and it proves to be of easy design. Moreover, its computational cost is independent of the number of subbands, Additionally, the discontinuity of UWB pulse signals makes it possible to employ a relatively simple interpolation algorithm in time domain. The simulation results verified the feasibility and the effectiveness of this presented method,
%K UWB pulse
%K Beamforming
%K Multi-rate filter bank
%K Frequency invariant array response<br>UWB脉冲
%K 波束形成
%K 多速率滤波器组
%K 频率不变响应
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=D48FB1C9945FFD8A&yid=37904DC365DD7266&vid=D3E34374A0D77D7F&iid=59906B3B2830C2C5&sid=784BDF2E910D463D&eid=66553187569A3CBF&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=0&reference_num=12