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Design and Completion for Waveform Generator Based on DDS
Author(s): 
Pages: 8-10,13
Year: Issue:  9
Journal: Instrumentation Technology

Abstract: 研究基于直接数字合成(DDS)技术的任意波形发生器(AWG)系统设计.以DDS技术为核心,采用AT89C51单片机作为系统控制部件,利用软件编程实现电压输出的频率预置、步进,输出标准波形.整个系统运用C语言编写相应内部程序,结构紧凑,电路简单,输出波形稳定性好,系统可扩展性强.使用数字信号,克服了模拟信号冗余量大不易处理的缺陷,操作实践表明该系统能可靠运行.
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