雷达科学与技术2024，Vol.22Issue(2)：126-134,9.DOI:10.3969/j.issn.1672-2337.2024.02.002
低海况下多姿态海上目标特征分析
Characterization of Multi-Attitude Maritime Targets in Low Sea State
摘要
Abstract
There are many kinds of maritime targets,the monolithic structure is complex,and the dynamic range of target characteristics is large,with strong time-varying nature.Starting from the target characteristics,characterizing the physical difference between the sea surface and the target is an effective way to solve the problem of maritime target de-tection.Under this background,an X-band radar is used to carry out multi-attitude maritime target data acquisition ex-periment.The spatio-temporal correlation of multi-attitude targets and the statistical characteristics are analysed in time domain,frequency domain and time-frequency domain under low sea state.The difference coefficient is defined to ana-lyze the statistical characteristics of the difference.The validation of a large number of measured data shows that the spa-tio-temporal correlation and statistical features of the target and sea clutter have a large difference under low sea state,which is strongly separable;the difference coefficient of the same statistical feature between different attitude targets is between 0 and 0.1,which has a small difference and is not separable.These conclusions are of great significance for the maritime target characteristic data acquisition experiment and the optimized design of target recognition method.关键词
海上目标特性/特征提取/时空相关性/雷达试验Key words
characteristics of maritime targets/feature extraction/spatio-temporal correlation/radar experiment分类
信息技术与安全科学引用本文复制引用
田凯祥,李保珠,王中训,刘宁波..低海况下多姿态海上目标特征分析[J].雷达科学与技术,2024,22(2):126-134,9.基金项目
国家自然科学基金资助项目(No.62101583,61871392) （No.62101583,61871392）
泰山学者工程专项经费(No.tsqn202211246) （No.tsqn202211246）
