| 基于FRFT的均匀圆阵DOA估计 |
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| 引用本文： | 屈海涛,齐林,穆晓敏,杨守义.基于FRFT的均匀圆阵DOA估计[J].计算机工程,2008,34(12):85-87. |
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| 作者姓名： | 屈海涛 齐林 穆晓敏 杨守义 |
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| 作者单位： | 郑州大学信息工程学院,郑州,450052 |
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| 摘 要： | 针对广泛应用于第三代移动通信系统中的均匀圆阵，将分数阶Fourier变换的时频特性和分数阶Fourier域波束形成技术相结合，给出一种多分量LFM信号的波达方向估计算法。与其他方法相比，该算法在一定程度上提高了精确度。仿真验证了在多径和多普勒频移存在的复杂信道中算法的有效性。
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| 关 键 词： | 分数阶Fourier变换 DOA估计 均匀圆阵 |
| 修稿时间： | |
DOA Estimation of Uniform Circular Array Based on FRFT |
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| QU Hai-tao,QI Lin,MU Xiao-min,YANG Shou-yi.DOA Estimation of Uniform Circular Array Based on FRFT[J].Computer Engineering,2008,34(12):85-87. |
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| Authors: | QU Hai-tao QI Lin MU Xiao-min YANG Shou-yi |
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| Affiliation: | (Information Engineering School, Zhengzhou University, Zhengzhou 450052) |
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| Abstract: | For the UCA widely used in the third mobile communication system, characteristics of the FRFT are combined with the beamforming technique in the fractional Fourier domain, an algorithm for the Direction Of Arrival(DOA) estimation of the multi-component LFM sources is proposed. Compared with other methods, the accuracy is enhanced in a certain extent. Simulation verifies that the method is effective in the multipath and doppler frequency of signals incident channels. |
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| Keywords: | fractional Fourier transform Direction Of Amival(DOA) estimation Uniform Circular Array(UCA) |
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