实验室条件下IRMSS遥感器MTF与遥感图像参数的相关分析设计与性能评估  

The Correlation Analysis Between MTF of IRMSS Remote Sensor and Parameters of Remote Sensing Image in the Laboratory

作　　者：汪静[1] 胡晔[1] 尤建洁[1] 夏德深[1] 

机构地区：[1]南京理工大学计算机系603教研室,南京210094

出　　处：《航天返回与遥感》2004年第4期35-45,共11页Spacecraft Recovery & Remote Sensing

摘　　要：调制传递函数MTF(ModuleTransferFunction)在物理光学理论中 ,是光学系统成像性能的综合评价指标。遥感器MTF的性能变化会导致遥感图像的质量变化 ,遥感图像质量的变化则导致描述遥感图像的参数的变化。文章以CBERS - 1的 0 2星IRMSS遥感器为例 ,在实验室条件下模拟遥感器在轨运行的成像过程并获得图像数据 ,MTF可通过专业仪器直接测量 ,然后再进行MTF与遥感图像参数的相关分析 ,从而确定出与MTF相关性最强的图像参数。MTF (Module Transfer Function), in the physical optics theory, is a synthetical evaluation index of imaging performance of optics system. The performance change of MTF of the remote sensor results to the quality change of the remote sensing images, and then results to change of the parameters of remote sensing images.Taking IRMSS of the second satellite of CBERS-as an example, we simulate the change of MTF in the laboratory, obtain the target images with the corresponding MTF and carry out the correlation analysis between MTF and image parameters. Through the analysis results we can find the parameters which have the strongest correlation relation with the MTF. The correlation analysis experiment are implemented by SPSS software.

关 键 词：遥感图像 遥感器 性能评估 MTF Function) 参数 图像数据 像质 成像 调制传递函数 

分 类 号：V474[航空宇航科学与技术—飞行器设计] TP75[自动化与计算机技术—检测技术与自动化装置]