| 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。 |
| 关键词: 电子对抗 阵列处理 循环平稳 波达方向估计 |
| DOI：10.3969/j.issn.1001-893X. |
| 投稿时间：2005-09-27修订日期：2006-01-26 |
| 基金项目:四川省科研项目 |
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| An Algorithm for DOA Estimation of Cyclostationarity Signals Based on FFT |
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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. |
| Key words: FFT Cyclic-MUSIC |
《电讯技术》编辑部 