摘要
回波仿真是进行合成孔径雷达(SAR)研究的重要途径,但其计算量巨大,所需的时间较长。为了快速实现合成孔径雷达回波仿真,采用现场可编程门阵列(FPGA)作为主处理芯片,设计了专用于SAR回波信号模拟的实时数字信号处理板卡,并在板卡上编程实现整个回波模拟算法。实际应用结果显示,采用FPGA来实现SAR回波仿真,可以在保证精确度的前提下,大大加快仿真速度。
The echo simulator is of great significance to the research on Synthetic Aperture Radar(SAR), whereas it costs massive computation. In order to realize fast simulation of SAR echo, the FieldProgrammable Gate Array(FPGA) is adopted as the kernel chirp to design the digital signal processingboard specially used in SAR echo simulation. The simulation algorithm is realized on the board byprogramming. The application result shows that the realization of SAR echo simulator based on FPGA cangreatly accelerate the simulation speed and significantly reduce energy consumption.
作者
张玉宪
袁常顺
ZHANG Yuxian;YUAN Changshun(Naval Aviation Academy, Huludao Liaoning 125001,China;College of Electronic Information Engineering,Beihang University, Beijing 100191,China)
出处
《太赫兹科学与电子信息学报》
2016年第4期541-544,共4页
Journal of Terahertz Science and Electronic Information Technology
关键词
合成孔径雷达
回波仿真
实时
现场可编程门阵列
Synthetic Aperture Radar(SAR)
echo simulator
real-time
Field Programmable Gate Array
