微振动对高分辨率TDICCD图像辐射质量影响
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摘要
微振动是影响高空间分辨率遥感卫星成像质量的重要因素之一。主要针对微振动对时间延迟积分电荷耦合器件(TDICCD)图像辐射质量的影响规律进行研究,一方面对微振动的影响规律有更深入的研究,另一方面反过来为微振动的抑制提供参考和建议。首先结合成像器件与目标存在相对运动时的曝光成像规律和TDICCD相机成像原理,建立了微振动下TDICCD相机成像的仿真退化模型。然后利用该模型进行仿真计算,得到了仿真退化图像。最后,针对不同的影响因子,包括微振动的振幅、频率以及TDICCD相机级数,分别研究了其对图像辐射质量的影响规律,并结合理论或者工程实际进行分析,其结果基本一致。
Micro vibration is one of the important factors affecting the image quality of high spatial resolution remote sensing satellite.The effect of micro vibration on radiation quality of TDICCD images was studied.On one hand,the influence of micro vibration was studied more deeply.On the other hand,it provided reference and suggestion for the suppression of micro vibration.Firstly the exposure rule and the imaging principle of TDICCD camera were studied when the imaging device was moving relative to the target.And a simulation degradation model of TDICCD camera imaging under micro vibration was established based on the principles.Then the simulated degraded image was obtained by simulating the model.Finally,the effects of amplitude,frequency and number of stages on the radiation quality of the image were studied respectively.And the results are basically the same as theory or engineering practice.
Micro vibration is one of the important factors affecting the image quality of high spatial resolution remote sensing satellite.The effect of micro vibration on radiation quality of TDICCD images was studied.On one hand,the influence of micro vibration was studied more deeply.On the other hand,it provided reference and suggestion for the suppression of micro vibration.Firstly the exposure rule and the imaging principle of TDICCD camera were studied when the imaging device was moving relative to the target.And a simulation degradation model of TDICCD camera imaging under micro vibration was established based on the principles.Then the simulated degraded image was obtained by simulating the model.Finally,the effects of amplitude,frequency and number of stages on the radiation quality of the image were studied respectively.And the results are basically the same as theory or engineering practice.
引文
[1]张博文,王小勇,胡勇力.微振动对高分辨率空间相机成像影响的集成分析[J].航天返回与遥感,2012,33(2):60-66.ZHANG B W,WANG X Y,HU Y L.Integrated analysis on effect of micro-vibration on high resolution space camera imaging[J].Spacecraft Recovery and Remote Sensing,2012,33(2):60-66(in Chinese).
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[6]石俊霞,薛旭成,郭永飞.卫星振动对TDICCD成像质量的影响及补偿方法[J].光电工程,2010,37(12):11-16.SHI J X,XUE X C,GUO Y F.Effect of satellite vibration on imaging quality of TDICCD camera and compensation method[J].Opto-Electronic Engineering,2010,37(12):11-16(in Chinese).
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[8]庄绪霞.平台运动对星载TDICCD相机成像质量影响分析与仿真[D].哈尔滨:哈尔滨工业大学,2011.ZHUANG X X.The effect analysis and simulation of platform motion on image quality of spaceborn TDICCD camera[D].Harbin:Harbin Institute of Technology,2011(in Chinese).
[9]李勃.随机振动对TDICCD相机像质影响分析[D].哈尔滨:哈尔滨工业大学,2013.LI B.Analysis of random vibration on image quality degradation of TDICCD camera[D].Harbin:Harbin Institute of Technology,2013(in Chinese).
[10]彭旭娇.平台振动对光学卫星成像质量的影响建模及参数辨识[D].长沙:国防科学技术大学,2013.PENG X J.Image degradation modeling due to satellite platform vibration and blur parameter identification[D].Changsha:National University of Defense Technology,2013(in Chinese).
[11]范斌,于起峰.卫星平台运动对高分辨率光学遥感成像系统影响分析[J].中国空间科学技术,2017,37(3):86-92.FAN B,YU Q F.Simulation analysis of platform vibration on image quality of satellite-based highresolution optical system[J].Chinese Space Science and Technology,2017,37(3):86-92(in Chinese).
[12]谭伟,杨秉新,何红艳.一种新的遥感影像清晰度评价方法[J].中国空间科学技术,2016,36(2):50-57.TAN W,YANG B X,HE H Y.A new definition evaluation method for remote sensing images of satellite[J].Chinese Space Science and Technology,2016,36(2):50-57(in Chinese).
[2]樊超,李英才,易红伟.颤振对TDICCD相机像质的影响分析[J].光子学报,2007,36(9):1714-1717.FAN C,LI Y C,YI H W.Influence analysis of buffeting on image quality of TDICCD camera[J].Acta Photonica Sinica,2007,36(9):1714-1717(in Chinese).
[3]许世文,姚新程,付苓.推帚式TDICCD成像时像移影响的分析[J].光电工程,1999,26(4):60-63.XU S W,YAO X C,FU L.An analysis for the influence of image method[J].Opto-Electronic Engineering,1999,26(4):60-63(in Chinese).
[4]邓勤.卫星颤振对遥感卫星成像质量影响研究及实验验证[D].杭州:浙江大学,2013.DENG Q.Research of motion estimation algorithm based on digital images[D].Hangzhou:Zhejiang University,2013(in Chinese).
[5]赵光旭.相机平台颤振对高分辨率光学遥感成像的影响分析[D].成都:西南交通大学,2015.ZHAO G X.The camera platform flutter analysis of the influence of high-resolution optical remote sensing imaging[D].Chengdu:Southwest Jiaotong University,2015(in Chinese).
[6]石俊霞,薛旭成,郭永飞.卫星振动对TDICCD成像质量的影响及补偿方法[J].光电工程,2010,37(12):11-16.SHI J X,XUE X C,GUO Y F.Effect of satellite vibration on imaging quality of TDICCD camera and compensation method[J].Opto-Electronic Engineering,2010,37(12):11-16(in Chinese).
[7]李浩洋,刘兆军,徐彭梅.平台颤振对空间光学遥感器成像质量的影响[J].计算机仿真,2012,29(1):25-27.LI H Y,LIU Z J,XU P M.Influence of satellite jitter on imaging quality of space-born remote sensing systems[J].Computer Simulation,2012,29(1):25-27(in Chinese).
[8]庄绪霞.平台运动对星载TDICCD相机成像质量影响分析与仿真[D].哈尔滨:哈尔滨工业大学,2011.ZHUANG X X.The effect analysis and simulation of platform motion on image quality of spaceborn TDICCD camera[D].Harbin:Harbin Institute of Technology,2011(in Chinese).
[9]李勃.随机振动对TDICCD相机像质影响分析[D].哈尔滨:哈尔滨工业大学,2013.LI B.Analysis of random vibration on image quality degradation of TDICCD camera[D].Harbin:Harbin Institute of Technology,2013(in Chinese).
[10]彭旭娇.平台振动对光学卫星成像质量的影响建模及参数辨识[D].长沙:国防科学技术大学,2013.PENG X J.Image degradation modeling due to satellite platform vibration and blur parameter identification[D].Changsha:National University of Defense Technology,2013(in Chinese).
[11]范斌,于起峰.卫星平台运动对高分辨率光学遥感成像系统影响分析[J].中国空间科学技术,2017,37(3):86-92.FAN B,YU Q F.Simulation analysis of platform vibration on image quality of satellite-based highresolution optical system[J].Chinese Space Science and Technology,2017,37(3):86-92(in Chinese).
[12]谭伟,杨秉新,何红艳.一种新的遥感影像清晰度评价方法[J].中国空间科学技术,2016,36(2):50-57.TAN W,YANG B X,HE H Y.A new definition evaluation method for remote sensing images of satellite[J].Chinese Space Science and Technology,2016,36(2):50-57(in Chinese).