This paper introduces a design of Direct Digital Frequency Synthesis(DDFS) based on CPLD, and describes clearly the design method of a multi-function waveform generator using DDFS.
本文介绍了一种基于CPLD的直接数字频率合成（DDFS）的实现方法，详细阐述了采用此技术设计多功能信号发生器的方法。
The design and implementation of quadrature waveform generator are described based on the AT89C52, phase-locked loop(PLL) and switched-capacitor filter(SCF).
描述了基于AT89C52单片机、锁相环和开关电容滤波器的正交信号发生器的设计和实现方法。
We pictured the hardware structure of gradient waveform generator. The introduction of FPGA and FPGA design flow is also described.
文中描述了梯度波形发生器的硬件结构，简介了卡上fpga内部结构及FPGA内部逻辑设计流程。
The main task of this paper is a combination of virtual instrument technology, arbitrary waveform generator of the research and design.
本论文的主要工作是结合虚拟仪器技术，进行任意波形发生器的研究与设计。
The main task of this paper is a combination of virtual instrument technology, arbitrary waveform generator of the research and design.
本论文的主要工作是结合虚拟仪器技术，进行任意波形发生器的研究与设计。
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