Eigenvalue Decomposition of a Parahermitian Matrix: Extraction of Analytic Eigenvalues
Eigenvalue Decomposition of a Parahermitian Matrix: Extraction of Analytic Eigenvalues
复制标题
帕埃尔米特矩阵的特征值分解:解析特征值的提取
DOI:
10.1109/tsp.2021.3049962
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发表时间:
2021
影响因子:
5.4
通讯作者:
Fraser K. Coutts
中科院分区:
文献类型:
--
作者:
Stephan Weiss;I. Proudler;Fraser K. Coutts
An analytic parahermitian matrix admits an eigenvalue decomposition (EVD) with analytic eigenvalues and eigenvectors except in the case of multiplexed data. In this paper, we propose an iterative algorithm for the estimation of the analytic eigenvalues. Since these are generally transcendental, we find a polynomial approximation with a defined error. Our approach operates in the discrete Fourier transform (DFT) domain and for every DFT length generates a maximally smooth association through EVDs evaluated in DFT bins; an outer loop iteratively grows the DFT order and is shown, in general, to converge to the analytic eigenvalues. In simulations, we compare our results to existing approaches.