摘要
线性调频信号作为一种常用的脉冲压缩信号,在雷达系统中有着广泛的应用。介绍了基于FPGA(现场可编程门阵列)的DDS(直接数字频率合成)软件编程技术实现线性调频信号的基本原理和具体方法,采用VHDL语言编程,给出了部分主要源程序,并与DDS专用芯片的方法进行了比较。
As an important kind of pulse compression signal, linear FM signal is widely used in radar systems. In this paper, we introduce the fundamental principle and methods based on FPGA＇ s DDS programming technology to obtain the LFM signal. Some important source programs using VHDL language are presented, and the difference between the method using professional DDS chip and the method provided is compared.
出处
《电子工程师》
2006年第9期4-7,共4页
Electronic Engineer
基金
全国优秀博士学位论文作者专项基金(200237)
