电子学报2012，Vol.40Issue(6)：1223-1228,6.DOI:10.3969/j.issn.0372-2112.2012.06.026
基于子空间和投影分离的三维正弦信号频率估计算法
3-D Frequency Estimation of Multiple Sinusoids Using Subspace and Projection Separation Approaches
摘要
Abstract
A computationally efficient method that combines the subspace and projection separation approaches is proposed for 3-D frequency estimation of multiple sinusoids. From the perspective that 3-D sinusoids is a series of 2-D sliced matrices distributed in the third dimension,frequency parameters in the first dimension are estimated by applying the conventional MUSIC-based method to the covariance of the series of slice in the third dimension. Subsequently, a set of projection separation matrices is constructed to separate and estimate the frequency parameters in the second and the third dimension through a set of slices distributed in the third and the second dimension,respectively. The 3-D frequency parameters are automatically paired. For only the original scale of sampled data array is utilized, and the proposed method is more computationally attractive. Computer simulations show that the proposed algorithm is superior to IMDF and HOSVD methods of 3D case in terms of estimation performance and computational complexity.关键词
三维频率估计/子空间方法/投影矩阵分离方法Key words
3-D frequency estimation/ subspace-based method/projection separation approach分类
信息技术与安全科学引用本文复制引用
黄龙庭,吴云韬,廖桂生,张彦铎..基于子空间和投影分离的三维正弦信号频率估计算法[J].电子学报,2012,40(6):1223-1228,6.基金项目
国家自然科学基金(No.61172150) （No.61172150）
