In this paper, instead of using the bispectrum to detect the quadratic phase coupling, a new method based on -dimension spectrum is developed.
本文在原有利用双谱对二次相位耦合进行分析的基础上，提出了维谱分析方法。
The detection of the quadratic phase coupling has been widely applied in various field such as EEG data analysis, oceanography, sonar and medical biology.
二次相位耦合的识别在EEG数据分析，海洋地理、声纳和生物医学等领域有着广泛的应用。
The result shows that the quartic phase coupling component and quadratic-to-cubic phase coupling one are only extracted using the fifth order cumulants of complex signals.
研究表明：复数信号的五阶累积量是提取四次相位耦合分量、二三对相位耦合分量的必要工具。
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