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.
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.
出处
《福建师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第1期47-50,共4页
Journal of Fujian Normal University：Natural Science Edition
基金
福建省教育厅资助项目(JB06106)
