摘要
讨论了线性非高斯有色噪声中的谐波恢复问题。已有的方法中假设非高斯有色噪声是非对称分布的且谐波中不存在二次相位耦合。本文利用特殊定义的四阶累积量，给出两种非高斯有色噪声中的谐波恢复方法，克服了原有方法的局限性。
The harmonic retrieval problem is addressed. In the existing methods,assumptions are made that the non Gaussian noise is asymmetrically distributed and no quadratic phase coupling occurs. Using the elaborately defined fourth order cumulants,two methods of harmonic retrieval in coloured non Gaussian noise are proposed. The limitations in the reported approaches are released.
基金
吉林省教委资助项目
关键词
谐波恢复
非高斯有色噪声
累积量
信号处理
噪声
harmonic retieval
coloured non Gaussian noise
fourth order cumulant
Hilbert transform
