| 基于时频分析的混沌谐波线性混合信号提取算法 |
| |
| 引用本文： | 王尔馥,王冬青.基于时频分析的混沌谐波线性混合信号提取算法[J].黑龙江水专学报,2012,3(1):105-110. |
| |
| 作者姓名： | 王尔馥 王冬青 |
| |
| 作者单位： | 黑龙江大学电子工程学院,哈尔滨,150080 |
| |
| 基金项目： | 国家自然科学基金项目（61102071）; 黑龙江大学青年科学基金项目（QL201025） |
| |
| 摘 要： | 混沌信号与谐波信号的分离问题是混沌信号处理中的重点问题,时频分析理论的日趋成熟为该问题带来了新的解决方案。针对不同噪声情况下混沌背景下谐波信号的提取进行分析,将小波变换与EMD方法进行比较,经仿真实验总结出一种新的谐波信号提取的融合算法,仿真实验验证了该算法的有效性。
|
| 关 键 词： | 谐波信号 时频分析 提取 混沌 |
Extraction method of harmonic signal from chaotic background based on time-frequency |
| |
| WANG Er-fu
,
WANG Dong-qing.Extraction method of harmonic signal from chaotic background based on time-frequency[J].Journal of Heilongjiang Hydraulic Engineering College,2012,3(1):105-110. |
| |
| Authors: | WANG Er-fu WANG Dong-qing |
| |
| Affiliation: | (School of Electronic Engineering,Heilongjiang University,Harbin 150080,China) |
| |
| Abstract: | The separation of chaos and signal is an important problem of chaos signal processing.In recent years,the time-frequency analysis method is developed to resolute the problem.The basic theory of time-frequency methods was introduced.Comparing wavelet method with empirical mode decomposition（EMD） method,according to the different noise situation of the performance analysis of harmonic signal extraction in chaos background,a new synthesis about wavelet threshold and empirical mode decomposition（EMD） complementary of new harmonic signal extraction was summarized by experimental simulation.Computer simulation verified that the methods are high availability. |
| |
| Keywords: | harmonic signal time-frequency analysis extraction chaos |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
