摘要
随着现代电子测量技术的发展,能够产生各种波形信号的数字式信号发生器的应用越来越广泛。介绍了一种基于DDS技术的双通道数字式移相信号发生器的设计方法,该信号发生器以CPLD为核心,以VHDL为描述语言,并通过QuartusⅡ软件对设计进行了仿真,验证了设计的正确性。模块中的相位累加器使该系统具有较高的频率分辨率,可实现快速频率切换,有广泛的应用价值。
Following the development of technologies of modem electric measurement, the use of digital signal generators which generator all kinds of waveforms has become more and more popular. The design method of a dual- channel digital shift signal generator is presented. The signal generator is based on CPLD and DDS. Finally, the correctness of the design is verified by using the simulator of the Quartus Ⅱ. The phase adder in the model is widely applied which could enable system to hold high frequency revolution ,fast frequency switching.
出处
《科学技术与工程》
2009年第4期1009-1011,共3页
Science Technology and Engineering
基金
渭南师范学院科研基金项目(07YKF012)资助
