| DDS频率合成器相位截断误差频谱特性仿真分析 |
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| 引用本文： | 栾宝宽,王传刚,董茂林.DDS频率合成器相位截断误差频谱特性仿真分析[J].信息技术,2007,31(3):89-90. |
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| 作者姓名： | 栾宝宽 王传刚 董茂林 |
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| 作者单位： | 海军航空工程学院青岛分院,青岛,266041 |
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| 摘 要： | DDS频率合成器中由于一般只取相位累加器的高A位，用来寻址，从而产生了相位截断误差，导致输出谱杂散。利用仿真工具Systemview对相位截断误差频谱特性进行了仿真分析，对DDS频率合成器设计中频率控制字及低通滤波器的选择具有一定的指导意义。
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| 关 键 词： | 相位截断 仿真 |
| 文章编号： | 1009-2552（2007）03-0089-02 |
| 修稿时间： | 2006-06-14 |
Emulational analysis of the spectrum characteristic caused by the phase truncation in direct digital frequency synthesizer |
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| LUAN Bao-kuan,WANG Chuan-gang,DONG Mao-lin.Emulational analysis of the spectrum characteristic caused by the phase truncation in direct digital frequency synthesizer[J].Information Technology,2007,31(3):89-90. |
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| Authors: | LUAN Bao-kuan WANG Chuan-gang DONG Mao-lin |
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| Affiliation: | Qingdo Branch,Navy Aeronautical Engineering College, Qingdao 266041, China |
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| Abstract: | In direct digital frequency synthesizer, the spectrum is miscellaneous because only the higher bits are remained during the course of seeking address. The spectrum characteristic caused by the phase tnmeation is emulational analysed with Systemview. It has the important reference value of the selection of frequency control word and the low- pass filter during the design course of direct digital frequency synthesizer. |
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| Keywords: | DDS |
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