摘要
超分辨方法基于信号和噪声的参数化模型，在阵列和统计信号处理中具有重要的意义，在高信噪比的情况下具有比傅里叶变换更高的分辨率．单脉冲成像要求对散射点的幅度相位有较精确的估计，文中利用超分辨算法对散射点的幅度相位进行估计，进而对目标三维成像，成像效果比基于傅里叶变换的方法要好．
The super resolution method is based on the models of both the signal and the noise, which are important in statistical signal processing and array signal processing. At high signal to noise ratios, it leads to a superior accuracy than the FFT method. A precision estimation of amplitude and phase of scatterers are required in monopulse imaging. Super resolution signal estimators are used to estimate the amplitudes and phases of scatterers and three dimensional image is then formed. Simulation results show that the imaging quality is superior than that of the traditional FFT method.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
1999年第3期379-382,共4页
Journal of Xidian University
基金
雷达信号处理国家重点实验室开放课题基金
关键词
超分辨
单脉冲雷达
三维成像
super resolution
monopulse radar
three dimensional imaging
