基于DDS的任意波信号发生器设计

摘要

The arbitrary waveform generator is a kind of a general instrument extensively used in modem testing area, representing the development direction of signal source. The invention and application of direct digital synthesizer (DDS) technique is a revolution in the frequency synthesis field. Making full use of the advantages of high integration level, high speed, mass storage of FPGA, the arbitrary waveform signal source based on DDS realizes the DDS technique, improves the performance of the function generator and reduces the production costs.%任意波形发生器已成为现代测试领域应用最为广泛的通用仪器之一,代表了信号源的发展方向.直接数字频率合成(DDS)技术的发明和应用是频率合成领域里的一次革命.基于DDS的任意波信号源利用FPGA所具有的高集成度、高速度、可实现大容量存储器功能的特性,有效地实现了DDS技术,极大地提高了函数发生器的性能,降低生产成本.