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。
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.
出处
《电讯技术》
2006年第5期89-93,共5页
Telecommunication Engineering
基金
四川省基金项目(04GG006-025)
