| 周期信号离散傅里叶变换的误差分析及其应用 |
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| 引用本文： | 黄彬业,方忠华.周期信号离散傅里叶变换的误差分析及其应用[J].工业仪表与自动化装置,1999(1):21-22,25. |
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| 作者姓名： | 黄彬业 方忠华 |
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| 作者单位： | 南京工程兵工程学院 |
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| 摘 要： | 实际的系统都是不满足或不完全满足取样定理条件的，频率混迭是不可避免的。因此ＤＦＴ（ＦＦＴ）给出的频谱是有误差的，本文给出了表达式及估算方法。
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| 关 键 词： | 频率混迭 离散傅里叶变换 周期信号 误差分析 |
Error analysis and application of discrete fourier transform in periodic signal ness |
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| Huang Binye Fang Zhonghua Zhong Weiyang etc..Error analysis and application of discrete fourier transform in periodic signal ness[J].Industrial Instrumentation & Automation,1999(1):21-22,25. |
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| Authors: | Huang Binye Fang Zhonghua Zhong Weiyang etc |
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| Affiliation: | Huang Binye Fang Zhonghua Zhong Weiyang etc. 21 |
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| Abstract: | An actual system does not or does not completely meet the condition of a sampling theorem,which usually causes frequency mixing.Therefore the frequerey spectrum given by DFT(FFT)is not correct.This paper puts forward the error expression and estimating method. |
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| Keywords: | Frequency mixing Discrete Fourier transform Signal processing |
| 本文献已被 CNKI 维普 等数据库收录！ |
