基于去卷积距离超分辨方法的机理及限制条件  

The Principle and Limitation of the Range Super-Resolution Algorithms Based on Deconvolution

作　　者：倪晋麟[1] 储晓彬[1] 林幼权[1] 

机构地区：[1]南京电子技术研究所,210013

出　　处：《系统工程与电子技术》2000年第3期62-64,共3页Systems Engineering and Electronics

摘　　要：从频谱均衡的角度解释了去卷积方法能获得距离超分辨性能的原理。结果表明超分辨的原理在于利用了 3dB带宽以外的频率分量。经过均衡以后 ,3dB带宽以外的所有频谱分量的幅度将会相同 ,即信号的带宽得到了外推 ,从而分辨率得到提高。分析了实际系统对该方法性能所产生的可能限制。去卷积方法能否在系统中应用需视系统的具体情况而定 ,如采样率、噪声模型及多普勒频移等。From the spectrum equalization point of view, this work explains the principle of the range super-resolution algorithms based on deconvolution and gives the limitation of the algorithms. The principle of super-resolution based on deconvolution is to utilize the spectral components beyond 3dB bandwidth. After equlization is applied, all the spectral components have the same amplitutes and the bandwidth is extrapolated. It depends on many factors whether the algorithms are efficient, such as sampling rate, receiver noise model, Doppler frequency shift etc.

关 键 词：距离测量 分辨率 性能分析 去卷积 雷达 

分 类 号：TN957.51[电子电信—信号与信息处理]