CAJ | 학술논문

景象匹配技术是飞行器自主精确制导的关键技术之一,随着武器系统日益精确化,影响匹配制导精度的基准图选择得到了广泛的关注.在合成孔径雷达侧视成像机理的基础上,讨论了高程起伏对SAR图像的影响,引入了图像高程方差的概念.同时,以图像匹配的准确性、稳定性、可靠性为考察量,讨论了各特征参数对匹配性能的影响.文中对真实星载SAR图像进行匹配试验的结果表明,此准则是有效的.
경상필배기술시비행기자주정학제도적관건기술지일,수착무기계통일익정학화,영향필배제도정도적기준도선택득도료엄범적관주.재합성공경뢰체측시성상궤리적기출상,토론료고정기복대SAR도상적영향,인입료도상고정방차적개념.동시,이도상필배적준학성、은정성、가고성위고찰량,토론료각특정삼수대필배성능적영향.문중대진실성재SAR도상진행필배시험적결과표명,차준칙시유효적.
The suitability of the reference image is very important in scene matching of the navigation of unmanned vehicle. In this paper, first, we analyze the influence of elevation on SAR images, and adopt the variance of elevation as a new verification parameter basing on the analysis. Second, systematically study the parameters which can affect the ability of scene matching, and choose image choice, image affirm and image test as the process of reference selection. Theory analysis and experiments show that this method is practical.