CAJ | 학술논문

随着科学技术的进步，航空相机向着高分辨率、大视场方向发展，现有单片CCD 不能满足大视场的要求，高精度、多自由度的CCD拼接技术已成为当前发展的迫切需求。通过对比现有拼接技术的优劣，提出了一种新的大面阵CCD多自由度机械交错拼接技术，采用三点凸轮式多自由度拼接机构，取代传统修磨垫片方式，拼接时可在线实时调整。对拼接精度进行分析，结果表明，该方法的搭接误差﹤2μm，共面误差﹤4μm，满足航空相机大视场和高分辨率要求；对拼接结构进行模态仿真分析与模态测试实验，拼接机构一阶谐振频率大于390 Hz ，满足使用要求。
수착과학기술적진보，항공상궤향착고분변솔、대시장방향발전，현유단편CCD 불능만족대시장적요구，고정도、다자유도적CCD병접기술이성위당전발전적박절수구。통과대비현유병접기술적우렬，제출료일충신적대면진CCD다자유도궤계교착병접기술，채용삼점철륜식다자유도병접궤구，취대전통수마점편방식，병접시가재선실시조정。대병접정도진행분석，결과표명，해방법적탑접오차﹤2μm，공면오차﹤4μm，만족항공상궤대시장화고분변솔요구；대병접결구진행모태방진분석여모태측시실험，병접궤구일계해진빈솔대우390 Hz ，만족사용요구。
With the rapid development of relative technologies, the aero-cameras are developing in the direction of high resolution and large field of view. The existing CCDs cannot meet the requirement of large field of view. So, high-precision, multi-degree of freedom stitching technology has become an urgent demand for the current development. By comparing existing stitching technology, a multiple degrees of freedom mechanical interleaving stitching method which was different from traditional mechanical stitching and optical stitching methods were designed. The multiple degrees of freedom stitching machine with three points of cam was used to replace the traditional way of adjusting shims. So stitching can be adjusted in real time online. The analysis result shows that the method has a stitching error of less than 2μm, a coplanar error of less than 5μm. It can meet the imaging requirement of the camera. Modal simulation and modal experiment show that the resonant frequency of the structure of the first order is greater than 390 Hz, it can meet the requirements.