摘要
利用二维离散傅立叶变换理论分析了步进频率信号ISAR(Inverse Synthetic Aperture Radar)成像和多普勒效应原理,提出了相位匹配处理微动目标ISAR成像技术,阐述了新算法的物理意义,使用仿真数据演示了相位匹配处理微动目标ISAR成像技术的性能,证明了新技术微动目标ISAR成像能力.
Based on 2-D discrete fourier transform, the principle of ISAR（Inverse Synthetic Aperture Radar） imaging and its doppler effect are analyzed for stepped frequency waveform. Phase match processing technology is proposed to achieve ISAR image of target with micro-motion. The new technology has an innovative physical interpretation. Monte Carlo simulations with synthetic data demonstrate the performance of the new technology. The results confirm the ability of the new technology to reconstruct the ISAR image of a target with micro-motion.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2007年第3期435-440,共6页
Acta Electronica Sinica
基金
自然科学基金项目(No.60402032)
国防预研项目(No.41303040203)
关键词
逆合成孔径雷达
微动
步进频率信号
相位匹配处理
多普勒效应
离散傅里叶变换
ISAR（Inverse Synthetic Aperture Radar）
micro-motion
stepped frequency waveform
phase matching process- ing
Doppler effect
discrete Fourier transform
