摘要
舰船尾迹的仿真研究有利于合成孔径雷达(SAR)对舰船的检测与识别。针对舰船航行环境的复杂性,提出了一套较为完整的舰船尾迹仿真方法。在引入快速傅里叶变换(FFT)快速求解海面基础上,加入波流相互作用,使海面与尾迹较真实的融合在一起,然后基于随机多尺度模型给出了舰船尾迹后向散射的简化计算模型,最后结合速度聚束调制和调制变换函数仿真出SAR图像,仿真结果表明该方法的可行性。
The simulation of ship wake is helpful to the ship detection and identification using synthetic aperture radar（ SAR）. In view of the complexity of the ship navigation environment,a complete method is proposed to deal with the ship wave simulation. The fast fourier transform（ FFT） is introduced to solve the sea surface fast and a realistic fuse of the sea surface and the wave is realized with the addition of the current＇s interaction effect. Then,the simplified calculation model for the ship wake backscattering is given based on the stochastic multi-scale model. Finally,the simulated SAR is got by combing the velocity bunching modulation and the modulation transformation function,the result of simulation prove that the method is feasible.
出处
《舰船科学技术》
北大核心
2015年第2期58-62,78,共6页
Ship Science and Technology
基金
国家自然科学基金资助项目(61102167)
关键词
舰船尾迹
海面
合成孔径雷达
成像
ship wake
sea surface
synthetic aperture radar
imaging
