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Numerical Algorithm to Calculate Weighting Matrix of Constant Beamwidth Array Using Chebyshev Window
Author(s): WANG Zhi-Hai, WANG Da-Cheng, ZENG-Wu
Pages: 50-
53
Year: 2009
Issue:
3
Journal: Ocean Technology
Keyword: 恒定束宽; 加权矩阵; 迭代公式; 计算机仿真;
Abstract: 为了避免空间指向性由于频率变化引起的发射或接收信号失真,目标分类与识别用声纳常采用恒定束宽阵.恒定束宽加权矩阵的获得方法是设计此类声纳基阵的技术关键.根据空间加窗可以改变声纳波束形状的原理,提出了一种利用Cheby8hev窗获得形成恒定束宽波束所需频域加权矩阵的数值算法.文中从分析Chebyshev窗的三个参数之间的关系出发,获得了用于确定最优权系数的迭代公式,并提供了收敛步长的选取方法.计算机仿...
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