论文部分内容阅读
对弯折离散傅里叶变换的全通函数,在极点均为复数时,用零极点分解发现在每个极点的幅角处,频率弯折前后采样间距比值最大。从而可以通过调节全通函数的极点而改变采样点间距,为弯折离散傅里叶变换的实际应用给予一定的理论指导。
For the all-pass function of the bending discrete Fourier transform, when the poles are all complex numbers, it is found by the pole-zero decomposition that the ratio of the sampling pitch before and after the bending of the frequency is the maximum at the argument of each pole. Which can be adjusted by the pole of all-pass function to change the sampling point spacing for the practical application of bending discrete Fourier transform to give some theoretical guidance.