基于AD9914的多波形产生器的设计与应用

摘要

针对AD9914控制器,提出了地址设计方法和通用的异步并行接口设计,使得该控制器不再限于控制AD9914产生单一种类的信号,而是可以产生单频率信号、线性调频信号和相位编码信号,同时这些波形既可以是连续波信号也可以是脉冲信号,阐述了高实时性的系统结构,适用于产生频率捷变脉冲雷达信号,并给出了硬件产生的雷达波形效果.%This article brings forward the address design method and current asynchronous parallel interface design for AD9910 controller,so the controller is no longer limited to control AD9914 to generate single type of signal but single frequency signal,linear frequency modulation signal and phase encoded signal,and these waveforms may be either continuous wave signal or may be pulse signal.This paper also expatiates the system architecture of high real-time characteristics,which is adapted to generate a frequency-agile pulse radar signal.Finally,radar wave effect generated by the hardware is given.