| 基于双谱的谐波信号相位重构 |
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| 引用本文： | 樊养余,李平安,孙进才,尚久浩.基于双谱的谐波信号相位重构[J].信号处理,2000,16(1):1-4. |
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| 作者姓名： | 樊养余 李平安 孙进才 尚久浩 |
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| 作者单位： | 1. 西北工业大学
2. 西北轻工业学院 |
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| 摘 要： | 本文提出了一种基于双谱分析的谐波信号相位精确重构方法.该方法通过在被测信号中加入一相位为零的半基频信号,并对该合成信号进行双谱分析,实现了被测信号的相位精确求解,解决了已有基于双谱的信号相位估计方法中所存在的相对相移问题.仿真结果验证了该方法的有效性.
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| 关 键 词： | 双谱 相位重构 相移 |
Accurate Phase Reconstruction of Measured Signals From Bispectrum |
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| Fan Yangyu, Li Pingan, Sun Jincai, Shan Jiuhao.Accurate Phase Reconstruction of Measured Signals From Bispectrum[J].Signal Processing,2000,16(1):1-4. |
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| Authors: | Fan Yangyu Li Pingan Sun Jincai Shan Jiuhao |
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| Affiliation: | Fan Yangyu; Li Pingan; Sun Jincai; Shan Jiuhao (Northwestern Polytechnical University) (Northwest Institute of Light Industry) |
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| Abstract: | This pape presents a new method for accurate phase reconstruction of the hormonic signals frombispectrum. Based on the analyses of the measured harmonic signal,a signal with a zero-phase and halfof the fundamental frequency is added to form a combined signal with the mesured signal,and the bispectrum analysis is carried out to reconstruct the phase of thee measured signal accurately.Without the zero-phase assumption of the fundamental component,the phase sifting between the calculated Fourier phase and the trueFourier phase in the existing signal retrieval method based on bispectrum is eliminated in the new method.Thesimulation results show the effectiveness of the new method. |
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| Keywords: | Bispectrum Phase Reconstruction Phase Shifting |
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