鉴于传统波形发生器的不足，采用数字合成技术构成任意波形发生器，此波形发生器可以产生任意波形的周期信号，能灵活控制信号的频率幅值，相位，并在很宽的范围内快速切换频率，具有高分辨输出，运用DDS技术构建频率信号源，可获得连续精确调整的信号频率，幅值相位控制方便，存储容量大；AWG占微机系统资源少，通用性好，具有较强的移植性和很高的性能价格比。

研究的内容是利用数字频率合成技术构成任意波形发生器，且通过RS232串行接口传到PC，供PC机管理。

-in traditional waveform generator insufficient use digital synthesis techniques constitute arbitrary waveform generator, This waveform generator can produce arbitrary waveform cycle signal, the control signal flexibility in the frequency of the amplitude, phase, and the very broad scope of the rapid switching frequency, with high-resolution output, using DDS Construction frequency signal source, available for precise adjustment of the signal frequency, amplitude-phase convenient control, storage capacity; AWG for computer systems, fewer resources, common good, with a strong transplantation and high cost performance. The research project is the use of digital frequency synthesis technology constitute arbitrary waveform generator, and through the RS232 serial interface reached the PC for PC