光学精密工程2012,Vol.20Issue(11):2439-2443,5.DOI:10.3788/OPE.20122011.2439
面阵彩色航空遥感相机前向像移补偿机构精度分析
Accuracy analysis of forward image displacement compensation device for aerial scan color CCD camera
摘要
Abstract
The compensation accuracy of a forward image displacement compensation device in an area scan color CCD camera was analyzed, because it would influence the resolution of the camera directly. The characteristics of the mechanic compensation device were researched, and the allowable residual error of the velocity compensation corresponding exposure time was given. A mathematical model for the residual error of velocity compensation was established after analyzing main error sources of the device, then the error model was simulated by the Monte Carlo method. Finally, the compensation accuracy was verified by an imaging test with a dynamic target simulator. The test results show that the residual error of velocity compensation is 395. 6 fim/s, which is coincident with the simulation data 400 fxm/s. It is concluded that the method can estimate accurately the matching error accuracy.关键词
航空相机/像移补偿/速度补偿残差/精度分析/Monte Carlo算法Key words
aerial camera/ image displacement compensation/ residual error of velocity compensation/accuracy analysis/ Monte Carlo method分类
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李延伟,远国勤..面阵彩色航空遥感相机前向像移补偿机构精度分析[J].光学精密工程,2012,20(11):2439-2443,5.基金项目
国家863高技术研究发展计划资助项目(No.2007AA701203) (No.2007AA701203)