计算机工程与应用2011，Vol.47Issue(18)：139-141,225,4.DOI:10.3778/j.issn.1002-8331.2011.18.040
改进的窄带循环平稳信号DOA估计方法
Improved algorithm for DOA estimation of narrowband cyclostationary signals
摘要
Abstract
The cyclostationarity is amplified on propagator algorithm,and the cyclic propagator algorithm is presented. In virtue of the differences between the cyclic frenquency of desired signal and interference and the property that the noise is not spectral correlation on the cyclic frenquency of desired signal, the proposed algorithm can eliminate the effect of the noise and interference effective,and resolve the high resolution Direction-of-Arrival(DOA) estimation problem even when the number of source signals is more than the number of array components. Compared with the conventional eigen subspace algorithms,the presented method has lower computational complexity with insignificant performance degradation because of avoiding EVD(Eigen Value Decomposition) of the covariance matrix of the received signals. Simulations illustrate the efficiency of the algorithm.关键词
传播算子/循环传播算子/谱相关/波达方Key words
propagator/ cyclic propagator/ spectral correlation/ Direction-of-Arrival (DOA)分类
信息技术与安全科学引用本文复制引用
刘成城,赵拥军,李冬海..改进的窄带循环平稳信号DOA估计方法[J].计算机工程与应用,2011,47(18):139-141,225,4.基金项目
国家高技术研究发展计划(863)(the National High-Tech Research and Development Plan of China under Grant No.2009AA7034530). （863）
