摘要
随着高速ADC器件的发展及雷达系统性能需求,宽带线性调频信号在雷达系统中取得广泛应用。高速采样使得频域脉冲压缩点数增大,增加了处理延时与工程实现难度。FPGA接收ADC采样的宽带信号为时域抽取的多相分量的形式,采用多相的方法实现基于时域抽取与频域抽取的二维FFT与IFFT,能够节省FPGA存储资源,降低脉冲压缩的处理延时。
With the development of high-speed ADC devices and the increasing performance requirements of radar systems,wideband linear frequency modulation signals have been widely used in radar systems.High-speed sampling increases the number of pulse compression points in frequency domain,which in turn increases the processing delay and engineering implementation difficulty.The wideband signals sent from the ADC devices to the FPGAs are in the form of multiphase components extracted in time domain.In this paper,a multiphase method featuring two-dimensional FFT and IFFT based on time domain extraction and frequency domain extraction is implemented.It saves FPGA storage resources and reduces pulse compression processing delay.
作者
陈亮
田剑峰
CHEN Liang;TIAN Jianfeng(Xi'an Electronic Engineering Research Institute,Xi'an 710100)
出处
《火控雷达技术》
2024年第2期75-78,共4页
Fire Control Radar Technology
关键词
多相频域脉冲压缩
宽带线性调频信号
FPGA
FFT
multiphase frequency domain pulse compression
wideband linear frequency modulation signal
FPGA
FFT
