| 基于FFT的循环平稳信号波达方向估计 |
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| 引用本文： | 李川,王英,王建英,尹忠科.基于FFT的循环平稳信号波达方向估计[J].电讯技术,2006,46(5):89-93. |
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| 作者姓名： | 李川 王英 王建英 尹忠科 |
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| 作者单位： | 1. 西南交通大学,成都,610031
2. 中国西南电子技术研究所,成都,610036 |
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| 摘 要： | 针对在电子对抗实际应用中，来波信号比较集中的情况，提出一种基于FFT的循环平稳信号DOA估计算法。该算法将FFT引入到Extended Cyclic-MUSIC算法中，预先探索存在信号的空间局部区域，避免了全空间谱峰搜索，提高了波达方向检测效率。仿真结果证明了该算法的有效性。
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| 关 键 词： | 电子对抗 阵列处理 循环平稳 波达方向估计 |
| 文章编号： | 1001-893X（2006）05-0089-05 |
| 收稿时间： | 2005-09-27 |
| 修稿时间： | 2005-09-272006-01-26 |
An Algorithm for DOA Estimation of Cyclostationarity Signals Based on FFT |
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| LI Chuan,WANG Ying,WANG Jian-ying,YIN Zhong-ke.An Algorithm for DOA Estimation of Cyclostationarity Signals Based on FFT[J].Telecommunication Engineering,2006,46(5):89-93. |
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| Authors: | LI Chuan WANG Ying WANG Jian-ying YIN Zhong-ke |
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| Affiliation: | 1. Southwest Jiaotong University, Chengdu 610031 ,China; 2. Southwest China Institute of Electronic Technology, Chengdu 610036,China |
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| Abstract: | An improved algorithm for DOA estimation is proposed to solve the problem that signals are con- centrated within the limited space. FFT is introduced to the algorithm of Extended Cyclic - MUSIC. When spatial spectrum will be searched, the limited areas where some signals exist have been explored. Therefore, it can avoid searching spatial spectrum in all areas. Its effectiveness is illustrated by the simulation results. |
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| Keywords: | FFT Cyclic-MUSIC |
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