电子科技大学学报2012，Vol.41Issue(3)：373-377,5.DOI:10.3969/j.issn.1001-0548.2012.03.009
垂直入射区雷达地面散射系数测量与特性研究
Radar Terrain Scattering Return Measurement and Characteristics Research in Vertical Incidence Region
摘要
Abstract
To study the scattering mechanism of radar terrain returned in vertical incidence region, an experimental program to measure the scattering coefficients of terrain including farmland and sand in vertical incidence region was carried out by using S and 8mm Linear Frequency Modulated Continuous Wave Radar scatterometers. A terrain scattering return database connected with radar frequency, altitude, antenna pattern, incidence angle, and the roughness and permittivity of ground surface was established. The return data processing approach is provided, the theoretical scattering model of rough terrain surface is derived, and then the measured data is fitted by the model. The experimental results show that the measured scattering coefficients agree with the given model, the radar cross section per unit area at vertical incidence of sand is 2~3dB larger than that of farmland, and the scattering coefficients at 8mm is 18~20dB larger than that at S frequency-band.关键词
实验/雷达散射计/散射系数/地面回波/垂直入射Key words
experiment/ radar altimeter/ scattering coefficient/ terrain return/ vertical incidence分类
信息技术与安全科学引用本文复制引用
段锐,张海,陈祝明,成彬彬..垂直入射区雷达地面散射系数测量与特性研究[J].电子科技大学学报,2012,41(3):373-377,5.基金项目
国家自然科学基金与中国工程物理研究院联合基金(NSAF)(10776003) （NSAF）
