摘要
提出了一种基于FPGA的DDS多路信号源的原理方案和实现方法。该信号源以高精度D/A转换器为核心构成波形重构电路,使用电子模拟开关实现多路信号输出切换。设计的信号源可同时输出32路,波形信号可为正弦波、锯齿波、三角波和矩形波,且输出信号的频率、幅值和偏置灵活可调。
A method based on FPGA was presented for multi-channel DDS signal generator.With output high-accuracy D/A converter for core waveform reconstruction electrical,the signal is achieved by electronic analog switch.In this design,the signal generator can provide four waves,which included sine wave,sawtooth wave,triangle wave and square wave.The frequency,amplitude and offset of the signal are flexible and adjustable.
出处
《电测与仪表》
北大核心
2011年第3期63-65,78,共4页
Electrical Measurement & Instrumentation
基金
国家自然科学基金资助项目(50535030)
