张伟, 谢蓄芬, 王付刚, 智喜洋. 变积分时间的空间红外相机单点绝对辐射定标法[J]. 红外与激光工程, 2012, 41(8): 2090-2095.
引用本文: 张伟, 谢蓄芬, 王付刚, 智喜洋. 变积分时间的空间红外相机单点绝对辐射定标法[J]. 红外与激光工程, 2012, 41(8): 2090-2095.
shu
Zhang Wei, Xie Xufen, Wang Fugang, Zhi Xiyang. Single-point absolute radiometric calibration for space infrared camera by changing integration time[J]. Infrared and Laser Engineering, 2012, 41(8): 2090-2095.
Citation: Zhang Wei, Xie Xufen, Wang Fugang, Zhi Xiyang. Single-point absolute radiometric calibration for space infrared camera by changing integration time[J]. Infrared and Laser Engineering, 2012, 41(8): 2090-2095.
shu

变积分时间的空间红外相机单点绝对辐射定标法

Single-point absolute radiometric calibration for space infrared camera by changing integration time

    摘要
  • 摘要: 针对星上多点辐射定标获取方法问题，研究了变积分时间的单点绝对辐射定标方法。首先， 根据红外相机响应特性建立了变积分时间的红外成像系统响应模型；其次，分析了变积分时间和变辐 射亮度相机响应模型的理论差异，提出了利用星上单点标准变积分时间的红外相机绝对辐射定标方 法；最后，结合探测器的光谱响应曲线，分析了变积分时间单点定标法引入的系统误差。实例计算表 明：在积分时间为10 ms、温度范围为250耀500 K的黑体辐射能量下，对应适当温度的单点标准变积分 时间绝对定标方法，引入的最大原理误差可达1.5%。变积分时间的单点绝对定标方法避免了黑体多 点定标设计和控制的复杂性，可用于空间红外相机的在轨辐射定标。

     

    Abstract: Amethodofin-orbitradiometriccalibrationbychangingintegrationtimeforspaceinfrared camerawasproposedaimingtomultiple-pointradiometriccalibrationobtainingmethod.Firstly,the responsemodelbychangingintegrationtimewasdevelopedaccordingtoresponsecharacteristicsofspace infraredcamera.Secondly,theoreticaldifferencesbetweenchangingintegrationtimeandradiancewere analyzed.Themethodofradiometriccalibrationbychangingintegrationtimeusingasingle-pointstandard wasproposedforin-orbitapplication.Finally,theerrorintroducedbythismethodwasanalyzed combiningthenonlinearityofdetector.Theexamplecalculationshowsthatthemaximumprincipleerror ofthismethodis1.5%underpropertemperatureatthesameradiantenergywhentemperatureis250to 500Kandintegrationtimeis10ms.Single-pointabsoluteradiometriccalibrationbychangingintegration timecanavoidthecomplexityofdesignandcontrolofmultiple-pointradiometriccalibrationsystem,and canbeusedforin-orbitradiometriccalibration.

     

    • HTML全文
    • 参考文献(0)
    • 相关文章
    • 施引文献
  • 资源附件(0)

/

返回文章
返回