CAJ | 학술논문

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1 kHz至70 MHz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.
개소일충기우DDS기술적수자조제신호적실현방법.계통채용Altera공사EP2C35계렬적FPGA심편,기파빈솔재1 kHz지70 MHz내가조,실현대수입신호진행FM,FSK,AM,ASK,PSK고빈조제.전로구유체적소,은정성호,가조제신호적보진정도고,수출파형실진소등특점.
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 in this paper.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.