Based on DDS technique, the signalgenerator can create two signals, i. e. the sinewave and the square wave signals, and its amplitude, frequency and phase can be continuously adjusted.
采用直接数字合成（DDS）技术构建双路正弦波及同步方波发生器，实现幅值、频率、相位等连续调节；
2
The realization of the project is mainly composed of two parts. The first part is low frequencysignalgenerator based on DDS, and the second part is high frequency signal synthesizer.