电子科技大学学报2012，Vol.41Issue(3)：368-372,5.DOI:10.3969/j.issn.1001-0548.2012.03.008
宽带数字阵列雷达波束形成的优化实现方法
Optimized Beamforming Method of Wideband Digital Array Radar Based on Time Delay
摘要
Abstract
An approach of wideband beamforraing to achieve accurate beam direction was pursued by the designers of the wideband digital array radar. According to the characteristics of the wideband digital array radar sampling in the Radio Frequency(RF) part, a real time and efficient digital time delay beam forming method based on the Variable Fractional Delay (VFD) filter is presented. The method proposes that the VFD filter can be integrated with the decimation anti-aliasing filter to design a dual-purpose filter and reduce the processing modules, and the polyphase structure is combined with the Farrow Structure to configure the key filter proposed above. This approach can realize the decimation and variable fractional delay in real time and achieve the accurate beam direction, which isn't affected when the signal frequency varies. The computer simulation result shows that, compared with unit delay beamforming approach, this optimized approach can improve the beam pointing accuracy effectively.关键词
波束形成/计算机仿真/时延/可变分数时延滤波器/宽带数字阵列雷达Key words
beamforming/ computer simulation/ time delay/ variable fractional delay(VFD) filter/ wideband digital array radar(WB-DAR)分类
信息技术与安全科学引用本文复制引用
邹林,汪学刚..宽带数字阵列雷达波束形成的优化实现方法[J].电子科技大学学报,2012,41(3):368-372,5.基金项目
部级基金 （）
