摘要
现场可编程门阵列(fieldprogrammablegatearray,FPGA)技术,具有集成高度、逻辑实现能力强等特点,已经成为数字系统设计的重要技术之一。数字脉冲压缩技术可靠性高,灵活性好,可编程,在现代雷达中广泛应用。快速傅里叶变换(fastFouriertransform,FFT)是一种实现数字脉冲压缩的高效、灵活的方法,也是实现雷达数字信号中重要技术。首先说明了基4FFT的基本知识,然后介绍了如何使用Xilinx的FPGA的来实现雷达信号处理机的数字脉压的核心———4096点FFT模块。
In recent years, the technology of field programmable gate array(FPGA) is developed rapidly, its characters of higy intergration, good performance of logic implementation and so on are become also one of important technologies in digital system design. The digital pulse compression technology is of high reliability, good flexibility and programmability, so that it is widely used in modern radar. FFT is not only a higy efficient and flexible way of implementation of digital pulse compression, but also an important technology of digital signal process of radar. Firstly the basic knowledge of radix-4 FFT is explained, then the kernel-4096 point FFT module of using Xilinx FPGA to implement digital pulse compression of radar signal processor is introduced.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2004年第3期404-408,共5页
Systems Engineering and Electronics
关键词
现场可编程门阵列
数字脉冲压缩
快速傅里叶变换
field programmable gate array
digital pulse compression
fast Fourier transform
