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High-spectral-resolution time-frequency distribution kernels

机译:高光谱分辨率时频分布内核

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Abstract: A new class of time-frequency kernels is introduced. Members in this class satisfy the desired time-frequency distribution properties and simultaneously provide local autocorrelation functions (LAF) which are amenable to high resolution techniques over periods of stationarities. These high spectral resolution kernels map the sinusoids in time into damped/undamped sinusoidal bilinear data products over the LAF lag variable. The damped sinusoids represent cross-terms. Using SVD-based backward linear prediction techniques, the signal zeros, the cross-term zeros, and the extraneous zeros, respectively, lie on, outside, and inside the unit circle, providing a mechanism to distinguish between different types of components. It is shown that the binomial kernel introduced is a member of this class. !17
机译:摘要:介绍了一类新的时频内核。此类成员满足所需的时频分布特性,并同时提供局部自相关函数(LAF),该函数在平稳期内可用于高分辨率技术。这些高光谱分辨率内核将LAF滞后变量上的正弦曲线及时映射到阻尼/未阻尼的正弦双线性数据乘积中。阻尼正弦曲线表示交叉项。使用基于SVD的向后线性预测技术,信号零,交叉项零和无关零分别位于单位圆的外部,内部和内部,从而提供了区分不同类型分量的机制。结果表明,引入的二项式内核是此类的成员。 !17

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