计算机应用与软件2017，Vol.34Issue(5)：168-174,199,8.DOI:10.3969/j.issn.1000-386x.2017.05.030
基于射线跟踪法的SAR图像相干仿真与评估
SAR IMAGE COHERENT SIMULATION AND EVALUATION BASED ON SBR
摘要
Abstract
Since the SAR image simulation directly based on SBR does not take into account the interaction between the surrounding scattered points, a coherent simulation algorithm based on SBR is proposed and four kinds of simulation image fidelity evaluation methods are introduced.Firstly, the amplitude matrix of imaging is obtained by SBR.Secondly, coherent simulation is conducted on the imaging amplitude matrix by the sum of the side-lobe of Sinc function,and the PCA similarity, SIFT feature matching rate, change detection rate and difference-value of target rate field of are verified by experiments are introduced to measure the fidelity of SAR image.Finally, by comparing the SAR image with the measured SAR image, it is verified that the coherence simulation image of this paper has higher image fidelity than the SBR.关键词
射线跟踪法/SAR图像/相干仿真/仿真逼真度Key words
SBR/SAR image/Coherent simulation/Simulation fidelity分类
信息技术与安全科学引用本文复制引用
聂春霞,孔莹莹..基于射线跟踪法的SAR图像相干仿真与评估[J].计算机应用与软件,2017,34(5):168-174,199,8.基金项目
国家自然科学基金项目(61501228) （61501228）
航空科学基金项目(20152052029) （20152052029）
江苏省自然科学基金项目(SBK2014043002) . （SBK2014043002）
