一种基于DDS和Qt的“所见即所得”波形发生器  

"What You See is What You Get" Waveform Generator Based on DDS and Qt

作　　者：张康康[1] 王中训[1] 王恒[1] 刘建英[1] 

机构地区：[1]烟台大学光电信息科学技术学院,山东烟台264005

出　　处：《现代电子技术》2010年第22期28-30,共3页Modern Electronics Technique

基　　金：山东省自然科学基金资助项目(ZR2009GM026)

摘　　要：提出一种基于直接数字频率合成(DDS)技术和Qt编程的任意波形发生器(AWG)的整体设计方案。完成了DDS在FPGA中的硬件修改设计以及在Linux环境下Qt程序的软件设计和内核驱动程序的开发,并给出实验结果。实验结果表明:通过触摸笔绘制任意波形,即可产生与所绘波形在时间和电压上均相同的实际电信号,达到"所见即所得"的效果,以满足各种测试和试验的要求。A total design scheme of the arbitrary waveform generator （AWG） which is based on direct digital frequency synthesizer （DDS） technology and Qt programming is proposed. The DDS hardware modification on FPGA, the software de- sign of Qt program and the development of the kernel driver in Linux environment were finished. The experimental results are presented. The experimental results indicate that the signal which is same as the practical electrical signal in time and voltage can be obtained through drawing an arbitrary waveform by the touching pen, the result of ＂What you see is what you get＂ is achieved, and the requirements of various tests are fulfilled.

关 键 词：任意波形发生器 DDS FPGA QT 

分 类 号：TN911-34[电子电信—通信与信息系统]