| 基于DDS的数字信号调制器的设计与实现 |
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| 引用本文： | 林惠君,吴进营. 基于DDS的数字信号调制器的设计与实现[J]. 福建师范大学学报(自然科学版), 2010, 26(1) |
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| 作者姓名： | 林惠君 吴进营 |
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| 作者单位： | 1. 福建师范大学数学与计算机科学学院,福建,福州,350108
2. 福建师范大学物理与光电信息科技学院,福建,福州,350108 |
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| 基金项目： | 福建省教育厅资助项目(JB06106) |
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| 摘 要： | 介绍一种基于DDS技术的数字调制信号的实现方法.系统采用Altera公司EP2C35系列的FPGA芯片,基波频率在1kHz至70MHz内可调,实现对输入信号进行FM,FSK,AM,ASK,PSK高频调制.电路具有体积小,稳定性好,可调制信号的步进精度高,输出波形失真小等特点.
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| 关 键 词： | AM PSK 直接数字合成 高频调制 数字调制 |
Designation and Implementation of High Frequency Signal Generator Based on DDS |
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| LIN Hui-jun,WU Jin-ying. Designation and Implementation of High Frequency Signal Generator Based on DDS[J]. Journal of Fujian Teachers University(Natural Science), 2010, 26(1) |
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| Authors: | LIN Hui-jun WU Jin-ying |
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| Affiliation: | 1.School of Mathematics and Computer Science;Fujian Normal University;Fuzhou 350108;China;2.School of Physics and OptoElectronics Technology;China |
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| Abstract: | Direct digital synthesis (DDS) is widely used in the field of wireless communication.With FPGA, the design and implementation of signal modulator based on DDS is introduced.This system is mainly controlled by EP2C35 of Altera, which fundamental frequency is adjustable, between 1 kHz and 70 MHz.The system features small volume, well stability, high step precision and output waveform undistorted. |
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| Keywords: | AM PSK DDS high-frequency amplification high-frequency modulation |
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