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Discrimination and Correction for Dense All-phase FFT Spectrums
Author(s): 
Pages: 172-177
Year: Issue:  1
Journal: Acta Electronica Sinica

Keyword:  全相位FFT谱泄漏密集谱谱校正;
Abstract: 为估计密集谱成分信号的频率和相位值,本文提出基于全相位FFT(all-phase FFT,apFFT)的密集谱识别与校正算法.利用全相位FFT良好的抑制谱泄漏性质和其特有的"相位不变性",本文方法可在传统振幅谱峰识别法失效情况下,根据相位谱是否满足平坦分布来识别密集谱与单频成分谱;结合全相位时移相位差校正法与相邻appFFT谱线间的相位关系,推导出了一种新的密集谱频率与相位的估计方法,并给出了辨别...
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