基于互四阶累积量的谐参数联合估计的TLS-ESPRIT方法

周晓勤; 王文才; 孔繁森

基于互四阶累积量的谐参数联合估计的TLS-ESPRIT方法

1. 吉林大学机械科学与工程学院, 长春 130022;
2. 密西根大学安娜堡分校机械工程系, 安娜堡MI 48109-2136

基金项目:

国家自然科学基金（50775099）；教育部博士点基金（20070183104）.

详细信息

作者简介:
周晓勤(1967-),男,湖北荆州人,教授.

中图分类号: THl61
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出版历程
- 收稿日期: 2008-03-12
- 网络出版日期: 2022-12-14

TLS-ESPRIT Approach to the Joint Estimation of Harmonic Parameters Based on Cross Fourth-order Cumulants

1. College of Mechanical Science and Engineering, Jilin University, Changchun 130022, China;
2. Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109-2136, USA

摘要

摘要: 导出了混合色噪声中复值随机谐波信号和实值随机谐波信号的互四阶累积量及对角切片,利用这些对角切片皆可估计出相同的频率和相移,但根据实值随机谐波所估计的互功率为复值随机谐波的3/16.将互四阶累积量与高分辨率的ESPRIT方法结合,提出了在混合色噪声中基于互四阶累积量的谐参数联合估计的TLS-ESPRIT方法.研究结果表明,基于互四阶累积量的谐参数联合估计TLS-ESPRIT方法可抑制混合色噪声,具有优越的参数估计性能.
- 谐波恢复 /
- 互高阶累积量 /
- 混合色噪声
Abstract: The cross fourth-order cumulants and their diagonal slices are respectively derived for both complex- and real-valued stochastic harmonic signals in hybrid colored noises.These diagonal slices can be used to estimate the same frequencies and phase shifts,but the different cross powers with the scale factor 3/16 with respect to complex and real-valued cases.By combining the cross fourth-order cumulants with high-resolution ESPRIT(estimation of signal parameters via rotational invariance techniques) algorithm,a TLS-ESPRIT approach to jointly estimating harmonic parameters in hybrid colored noises is presented.The simulation results demonstrated that the proposed joint estimation approach to harmonic parameters can suppress the hybrid colored noises,and retrieval the harmonic parameters with excellent estimation performance.
- harmonic retrieval /
- cross high-order cumulants /
- hybrid colored noise

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参考文献(15)

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基于互四阶累积量的谐参数联合估计的TLS-ESPRIT方法

作者简介: 周晓勤(1967-),男,湖北荆州人,教授.

计量

出版历程

TLS-ESPRIT Approach to the Joint Estimation of Harmonic Parameters Based on Cross Fourth-order Cumulants

计量

出版历程

目录

作者简介:
周晓勤(1967-),男,湖北荆州人,教授.