摘要
在研究卫星总体参数对TDI-CCD推扫成像调制传输函数MTF(Modula Transfer Function,MTF)影响关系的基础上,提出了一套模拟卫星在轨成像MTF下降的技术方法。通过这套模拟方法,建立了卫星总体参数与在轨成像质量MTF下降之间的关系,为用户根据遥感图像质量MTF指标的需求来确定对卫星主要总体参数的要求提供了分析手段。
More and more modern high resolution optical remote sensing satellites are being equipped with TDI CCD cameras. Modulation Transfer Function （MTF） is an authoritative means in evaluating the quality and implementation capability of the imaging system. For the purpose of evaluating the satellite criteria in the phase of production, it is necessary to simulate images with the satellite MTF criteria in enough reality. Based on a detailed analysis of the relationship between the satellite criteria and the on - orbit satellite TDI - CCD imaging degeneration, this paper gives a method for the simulation of the degeneration process. With the method, a soft ware system was built to simulate the on - orbit imaging process of the designed satellite, which can provide the application experts with a powerful tool to judge the satellite in designing and production.
出处
《国土资源遥感》
CSCD
2009年第1期13-17,33,共6页
Remote Sensing for Land & Resources
基金
国家高技术研究发展计划(863)(2006AA12Z134)
国家科技部国际科技合作项目“高分辨率立体测图卫星的地面几何检校联合试验研究(2006DFA71570)
地理空间信息工程国家测绘局重点实验室基金(200704)”
“国土资源部百名优秀青年科技人才计划”及“资源一号卫星02B星数据模拟与国土资源应用潜力评估”联合资助
