论文标题

均匀阵列,宽带光束形成了任意光束图案

Uniform Array with Broadband Beamforming for Arbitrary Beam Patterns

论文作者

Son, Phan Le

论文摘要

宽带波束形成是一种以广泛频率获得信号的技术。它在频率上保持信号完整性和空间选择性。这在几种应用中很重要,例如麦克风阵列,声纳阵列或雷达,其中信号的操作范围为几个八度。使用统一阵列进行宽带光束成型是旧主题,但是除优化方法外,没有用于任意梁模式的可用设计方法。在本文中,我们提出了一种基于几何翻译和坐标转换为任意光束图案设计宽带束形式的新方法。新方法使用的计算时间少于优化方法,它可以帮助找到对数组的更好配置,例如较少的传感器,尺寸较小。

Broadband beamforming is a technique to obtain the signal with a wide range of frequencies. It maintains the signal integrity and spatial selectivity over frequencies. This is important in several applications such as microphone array, sonar array or radar where the operation range of the signal is several octaves. Using uniform array for broadband beamforming is the old topic but there is no available design method for the arbitrary beam patterns, except the optimization methods. In this paper, we present a new method based on geometry translation and coordinate transformation to design broadband beamformer for arbitrary beam patterns. The new method uses less computation time than the optimization methods and it could help to find a better configuration of the array such as fewer sensors, smaller size.

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