基于算子和局部正交约束的信号自适应分解方法

衣晓蕾; 彭思龙; 栾世超

doi:10.11999/JEIT150318

基于算子和局部正交约束的信号自适应分解方法

doi: 10.11999/JEIT150318

1.
(中国科学院自动化研究所北京 100190) ②(中国航空综合技术研究所北京 100028)

基金项目:

国家自然科学基金(61032007, 61201375)

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出版历程
- 收稿日期: 2015-03-17
- 修回日期: 2015-06-12
- 刊出日期: 2015-11-19

An Approach of Adaptive Signal Separation Based on Operator and Locally Orthogonal Constraint

1.
(Institute of Automation, Chinese Academy of Sciences, Beijing 100190, China)
2.
(China Aero-polytechnology Establishment, Beijing 100028, China)

Funds:

The National Natural Science Foundation of China (61032007, 61201375)

摘要

摘要: 该文利用局部正交约束，采用反向投影策略，提出一种基于算子的信号自适应分解方法。该方法将输入信号建模为多个基本信号和一个残差信号之和，并且基本信号落在所定义算子的零空间中。通过仿真和实际信号的实验，展示了所提算法对于解决信号处理中的模式混叠问题的可行性，有效性和实用性。
- 自适应信号分解 /
- 局部正交 /
- 反向投影策略 /
- 零空间追踪
Abstract: An operator-based approach for adaptive signal separation is proposed by using the locally orthogonal constraint and adopting back projection strategy. The approach adaptively separates a signal into additive subcomponents and a residual signal, where the subcomponents are in the null space of the operators. Experiments, including simulated signals and a real-life signal, demonstrate the feasibility, efficiency, and practicability of the proposed approach for solving the mode mixing phenomenon.
- Adaptive signal separation /
- Locally orthogonal /
- Back projection strategy /
- Null space pursuit

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参考文献(17)

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