quadratic phase term

For improving the ability of the underwater detection system to detect underwater moving target, a special feature extraction method for underwater moving target-radiated square phase dynamic coupling signals is developed on the basis of analyzing and studying the property and performance of third order cumulant non-diagonal slice.

文中研究了三阶累积量非对角切片谱的性质 ,定义了相位动态耦合的概念 ,提出了基于三阶累积量非对角切片谱提取水中目标辐射平方相位动态耦合信号谱的方法 ,进行了仿真研究 ,并与自相关谱方法进行了比较。

We have developed the TOCDSBDALE(third-order cumulant diagonal slice-based direct adaptive line enhancement )algorithm based on the feature that the third-order cumulant of the random square phase coupling signal is nonzero.

依据随机平方相位耦合信号三阶累积量不为零的特点,提出了从高斯噪声环境中恢复平方相位耦合信号的基于三阶累积量对角切片的直接自适应谱线增强算法。