摘要
空间相机的成像参数往往受到卫星平台资源的限制,并不能全部由地面发送给相机,而是由卫星平台进行档位选择事先在相机里固化好的地面标定参数。由于空间环境的变化,空间相机在轨工作期间TDICCD均匀性会发生变化,从而影响成像质量。针对某航天离轴相机设计了一种空间TDICCD相机成像参数在轨重注的方法。首先,介绍相机的工作平台,确定在轨成像参数重注的设计方法;然后,介绍程序接收、缓存、校验以及存储参数数据的处理流程;最后,结合相机控制器软件专用检测模块验证该方法设计的正确性,并给出成像参数修改前后的TDICCD图像对比图,结果表明成像参数修改成功。
Space camera imaging parameters are often subject to satellite platform resource constraints,which can not all be sent to the camera from the ground,Instead,the satellite platform selects ground calibration parameters saved in the camera according to gear selection.Because of the space environment,TDICCD uniformity will change during the space camera work in-orbit,thus affecting the image quality.It is necessary to design a method of re-injection of imaging parameters for an off-axis space TDICCD camera in-orbit.First,the camera work platform is introduced,and the design of imaging parameters re-injection in orbit is determined.Then,the program to receive,save,check and write the data is described.Finally,in order to prove the validity of the method,a software-specific detection module for camera controller is used,and the comparisons of TDICCD pictures before and after the imaging parameters modification are presented.Experimental result shows that the imaging parameters modification is successful.
出处
《航空学报》
EI
CAS
CSCD
北大核心
2014年第8期2271-2278,共8页
Acta Aeronautica et Astronautica Sinica
基金
国家自然科学基金(60506014)~~
