数据采集与处理2018，Vol.33Issue(2)：207-214,8.DOI:10.16337/j.1004-9037.2018.02.002
雷达探测系统中目标位置和幅相信息量研究
Research on Location and Amplitude-Phase Information of Target in Radar Detection System
摘要
Abstract
A theoretical model of target detection is established for a general radar system.Specifically,we employ the thoughts and methodologies of Shannon's information theory to research the location information and amplitude-phase information of targets in a radar detection system.In the proposed model,we derive closed expressions of location information and amplitude-phase information in a single target detection assuming the target follows a uniform distribution in the observation range for a constant scattering coefficient and Rayleigh distributed scattering coefficient correspondingly.And in the high signal-tonoise(SNR) regime,we obtain an analytic expression and Cramér-Rao Bound(CRB) of location information for a constant scattering coefficient.Theoretical analysis shows that the location information of the target is linearly proportional to both time-bandwidth product(TBP) of radar detection system and the SNR in dB.The simulation results validate the theoretical analysis and give two important stages of radar target detection,namely,target acquisition and target tracking.The work of this paper is of great theoretical significance for the design of real radar detection systems.关键词
目标检测/位置信息/幅相相位信息/雷达系统Key words
target detection/location information/amplitude-phase information/radar system分类
信息技术与安全科学引用本文复制引用
徐大专,陈越帅,陈月,许生凯..雷达探测系统中目标位置和幅相信息量研究[J].数据采集与处理,2018,33(2):207-214,8.基金项目
国家自然科学基金(61471192,61371169)资助项目 （61471192,61371169）
江苏省高等学校优势学科建设工程资助项目. （）
