基于DDS的高精度任意波形发生器设计

High Precision Arbitrary Waveform Generator Based on DDS

系统利用直接数字频率合成技术(DDS)完成任意波形发生器设计,以FPGA作为核心控制器件,用Flash和RAM作为波形数据存储模块,在上位机软件的控制下,利用高精度D/A转换器,实现正弦波、方波、三角波、锯齿波、高斯白噪声等任意波形输出。系统可广泛用于通讯、遥控遥测、震动激励和仪器仪表等领域。

The system completes the arbitrary waveform generator by Direct Digital Synthesis with FPGA as the core control device and FLASH and RAM as the data storage module.Under the control of host computer software,the system uses the high precision D/A converter to achieve the output of arbitrary waveforms,such as sine wave,square wave,triangular wave,saw-tooth wave,white Gaussian noise.The system can be widely used in such field as telecommunications,remote telemetry,and instrumentation.