| 一种快速解相干的恒定束宽宽带波束形成算法 |
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| 引用本文： | 瞿孟虹,吴瑛.一种快速解相干的恒定束宽宽带波束形成算法[J].通信技术,2008,41(5):23-25. |
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| 作者姓名： | 瞿孟虹 吴瑛 |
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| 作者单位： | 解放军信息工程大学,信息工程学院,河南,郑州,450002 |
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| 摘 要： | 目前,恒定束宽宽带波束形成算法中权值拟合运算量较大,当信号与干扰相干时性能恶化.文中将宽带测向中常用的聚焦变换的思想(即频域平滑)运用于权值拟合中,在保证恒定束宽的条件下,实现解相干功能.同时,在聚焦矩阵求取过程中,利用Bessel函数分解导向矢量的性质,构造出可以预先计算并存储的聚焦矩阵,大大减少了权值拟合的运算量.仿真结果验证了本文算法的有效性.
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| 关 键 词： | 宽带波束形成 快速算法 信号干扰相干 快速 解相干 恒定束宽 宽带波束 形成算法 Signals Coherent Algorithm Bandwidth Constant 有效性 结果验证 仿真 存储 预先计算 构造 性质 导向矢量 函数分解 Bessel |
| 文章编号： | 1002-0802(2008)05-0023-03 |
| 修稿时间： | 2007年10月30 |
A Fast Constant Bandwidth Beam-forming Algorithm for Coherent Wide-band Signals and Interferences |
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| QU Meng-hong,WU Ying.A Fast Constant Bandwidth Beam-forming Algorithm for Coherent Wide-band Signals and Interferences[J].Communications Technology,2008,41(5):23-25. |
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| Authors: | QU Meng-hong WU Ying |
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| Affiliation: | QU Meng-hong,WU Ying (Institute of Information Engineering,Information Engineering University of the PLA,Zhengzhou Henan 450002,China) |
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| Abstract: | At present, large computational burden is unavoidable for getting weights of each frequency in constant bandwidth beam-forming algorithms. When desired signals are coherent with interferences, the performance of the algorithm would be deteriorated. In this paper, Firstly, by using focusing transforming methods (frequency-domain smoothing) in DOA estimation, the weights of each frequency is obtained. Even when coherent signals appear, the method can maintain good performance. Secondly, by using the property ... |
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| Keywords: | wide-band beam-forming fast algorithm coherent signals and interferences |
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