| 直接数字频率合成中相位截断误差分析 |
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| 引用本文： | 王建新,张先萌.直接数字频率合成中相位截断误差分析[J].电子测量与仪器学报,1995,9(1):1-6. |
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| 作者姓名： | 王建新 张先萌 |
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| 作者单位： | 南京理工大学!南京，210014，南京理工大学!南京，210014 |
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| 摘 要： | 直接数字频率合成具有相位噪声低、频率分辨力高和频率切换快等优点，但其合成的波形中含有大量的杂散分量，其中之一是由于相位截断引起的。本文用傅里叶级数的方法分析了合成波形的频谱特性，并对由于相位截断引起的杂散谱作了讨论。
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| 关 键 词： | 频率合成 数字频率合成 相位截断效应 误差分析 |
Analysis of Phase Truncation Errors in Direct Digital Frequency Synthesizers |
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| Wang Jianxin, Zhang Xianmeng.Analysis of Phase Truncation Errors in Direct Digital Frequency Synthesizers[J].Journal of Electronic Measurement and Instrument,1995,9(1):1-6. |
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| Authors: | Wang Jianxin Zhang Xianmeng |
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| Affiliation: | Nanjing University of Science & Technology |
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| Abstract: | The direct digital frequency synthesizer(DDS) has the advantages of low phase noise,high frequency resolution and fast frequency switching.However,there are a lot of spurious components in the output waveform or DDS.The phase truncation crror is one of the spurious sources.This paper analyzes the spectral characteristic of the synthesized waveform by use of the Fourier Series,and discusses the spurious spectrum of the phase truncation errors. |
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| Keywords: | Frequency synthesis Direct digital frequency synthesis Phase truncation effect Error analysis Spurious component |
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