液晶与显示2018，Vol.33Issue(3)：228-237,10.DOI:10.3788/YJYXS20183303.0228
基于GRT-CLEAN的高速旋转目标快速三维成像方法
Fast 3D imaging algorithm for high-speed spinning targets based on GRT-CLEAN
摘要
Abstract
In order to overcome the shortcomings of traditional 3D imaging algorithms for high-speed spinning targets,such as high computational complexity,poor imaging result and robustness,a fast 3D imaging algorithm based on GRT-CLEAN is developed.First,the 3D features of the target are ex-tracted with the combination of generalized Radan transform(GRT)and CLEAN technology which could obtain a high resolution image.Then,the scattering targets are estimated with two separate grid sequentially(from coarse grid to fine grid),w hich could reduce the computational complexity and speed up the imaging process.The effectiveness of the current 3D imaging algorithm is verified by the simulation experiment and numerical analysis.Results show that the present 3D imaging algorithm based on GRT-CLEAN can obtain an effective image under the circumstances of low signal-to-noise ratio and no target occultation,and greatly reduce the computational complexity compared with the traditional GRE-CLEAN imaging method.关键词
高速旋转目标/广义Radan变换(GRT)-CLEAN/网格剖分/三维成像Key words
high-speed spinning target/generalized Radan transform(GRT)-CLEAN/mesh genera-tion/3D imaging分类
信息技术与安全科学引用本文复制引用
王会,巨欢,方阳,李荣旭,王保平..基于GRT-CLEAN的高速旋转目标快速三维成像方法[J].液晶与显示,2018,33(3):228-237,10.基金项目
国家自然科学基金(No.61472324)Supported by National Natural Science Foundation of China(No.61472324) （No.61472324）
