摘要
基于合成孔径雷达(Synthetic Aperture Radar,SAR)成像原理及技术,以点目标作为基本研究对象,进一步扩展为对船舶尾流进行探测成像。采用距离多普勒算法通过Matlab建立了SAR模拟检测过程,对二维尾流进行模拟成像;得到了尾流的SAR二维仿真图像,通过将原图像与SAR图像中的尾流横波进行对比并分析误差,可知当SAR分辨率为1 m时,对于长度为50 m的目标其识别误差为1%~5%,该方法可以有效探测船舶尾流形态及尺寸,可用于尾流反演研究,以判断船舶航行状态。
Based on the principle and technology of Synthetic Aperture Radar(SAR) imaging,taking point target as the basic research object,it is expanded to detect and image ship wake. The range Doppler algorithm is used to establish the SAR simulation detection process through Matlab,and the two-dimensional wake is simulated and imaged;The two-dimensional simulation image of the wake is obtained.By comparing the original image with the transverse wave of the wake in the SAR image,the error analysis shows that when the SAR resolution is 1 m,the recognition error of the target with a length of 50 m is 1%~5%. This method can effectively detect the shape and size of the ship wake,and can be used in the wake inversion research to judge the ship navigation state.
作者
张杰
马元魁
张建生
薛鹏翔
ZHANG Jie;MA Yuankui;ZHANG Jiansheng;XUE Pengxiang(Xi’an Technological University,Xi’an 710021,China)
出处
《电子设计工程》
2022年第16期65-69,74,共6页
Electronic Design Engineering
基金
西安市未央区科技计划项目(201843)。
