摘要
多功能宽带相控阵雷达可以灵活地切换于多种工作模式和实现高分辨成像,成为相控阵雷达发展的重要方向。工作在成像模式时,系统采用具有一定带宽的信号,传统窄带波束形成的方法在宽带相控阵雷达中不再适用。对宽带相控阵雷达中波束形成问题进行了讨论,对波束方向图的畸变给出了定量分析和实验结果。在此基础上,提出了频域宽带波束形成方法中频率柜划分的依据。
The multifunction broadband phased array radar, which can operate on several work-mooes ana realize high resolution imaging, is the development trend for the phased array radar. Working on the imaging mode, the system adopts broadband Signals, thus the conventional narrowband beamforming method is inapplicable. The issues of broadband beamforming, such as beampattern distortion, are studied and formulated analytically. A principle of frequency bin partition is proposed for frequency-domain beamforming methods. Simulation results show that the proposed approach has benefits to the practical system design and broadband beamforming algorithm realization.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2008年第3期452-454,共3页
Systems Engineering and Electronics
基金
国家自然科学基金资助课题(60602048)
关键词
宽带相控阵雷达
阵列信号处理
宽带波束形成
特征分解
broadband phased array radar
array signal processing
broadband beamforming
eigen-decom-position
