| 相位可控双路同频信号源的FPGA部分设计与实现 |
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| 引用本文： | 常铁原,胡重九,陈小静.相位可控双路同频信号源的FPGA部分设计与实现[J].微计算机信息,2010(11). |
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| 作者姓名： | 常铁原 胡重九 陈小静 |
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| 作者单位： | 河北大学电信学院; |
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| 摘 要： | 介绍了直接数字频率合成(DDS)技术的基本原理,给出了基于Altera公司FPGA器件的相位可调双路同频正弦信号发生器的设计方案,同时给出了其软件程序和试验结果。试验结果表明:该方法生成的双路同频正弦信号具有波形失真小、频率和相位精度高,且输出频率与相位可调等优点。
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| 关 键 词： | 直接数字频率合成 FPGA 频率控制字 相位控制字 |
The design of Double channels of Same-frequency Singnal source with controllable phase on FPGA |
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| CHANG Tie-yuan HU Chong-jiu CHEN Xiao-jing.The design of Double channels of Same-frequency Singnal source with controllable phase on FPGA[J].Control & Automation,2010(11). |
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| Authors: | CHANG Tie-yuan HU Chong-jiu CHEN Xiao-jing |
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| Affiliation: | CHANG Tie-yuan HU Chong-jiu CHEN Xiao-jing(College of Electronic , Information Engineering,Hebei University,Baoding 071000,China) |
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| Abstract: | In this paper, the principle of the direct digital frequency synthesis (DDS) technology is introduced. Then the design scheme of sine signal generator with the double same-frequency channel is presented based on FPGA. Besides, the software program and experimental results are given at the last part of the paper. The conclusions drawn from the experimental results show that the output of the double channels sine signal source have characteristics of small waveform distortion, frequency and phase accuracy. In... |
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| Keywords: | DDS FPGA Frequency Control Word Phase Control Word |
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