摘要
简要介绍了线性调频信号产生技术的现状,详细介绍了直接数字频率合成(DDS)的基本原理。给出了高性能DDS芯片AD9858的主要特点和配置方法,同时以图形方式给出了基于AD9858芯片硬件结构及互连方法,以及控制DDS芯片的VHDL语言工作波形图,描述了输出线性调频信号的控制流程。
The paper describes the actuality of the linear FM signal technology and basic theory of the DDS. It gives the main features and applications of AD9858 which uses advanced DDS technology. The structures of the hardware and the contraction based on AD9858 are showed in figures. It also gives the waveform based on VHDL and describes the flow sheet of the control of the linear FM signal.
出处
《压电与声光》
CSCD
北大核心
2006年第3期263-264,268,共3页
Piezoelectrics & Acoustooptics
