Atmospheric scattering and turbulence modulation transfer function for CCD cameras on CBERS-02b and HJ-1A/1B
Atmospheric scattering and turbulence modulation transfer function for CCD cameras on CBERS-02b and HJ-1A/1B
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CBERS-02b 和 HJ-1A/1B 上 CCD 相机的大气散射和湍流调制传递函数
DOI：
10.1080/01431161.2011.606242
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发表时间：
2012-04
影响因子：
3.4
通讯作者：
XIAOYING LI
中科院分区：
文献类型：
--
作者：
TAO YU;XINGFA GU;TIANHAI CHENG;JIAGUO Li;ZUO WANG;HAILIANG GAO;XIAOYING LI
大气湍流和气溶胶散射会造成遥感图像的模糊。退化效应通常用大气调制传递函数(MTF)来量化。然而，这种影响在不同的遥控器上表现不同。本文研究了中国-巴西地球资源02b卫星(CBERS-02b)和环京-1B卫星(HJ-1A/1B)上的电荷耦合器件相机对气溶胶MTF和湍流MTF的不同衰减效果。具体地说，在经典的小角度近似(SAA)模型的基础上，考虑了气溶胶MTF和有效瞬时视场(EIFOV)，建立了修正的气溶胶MTF模型。通过假设多种不同的大气条件，计算了两种不同大气条件下的气溶胶MTF和湍流MTF。结果表明，在相同的大气条件下，HJ-1A/1B上的CCD相机输出的气溶胶MTF比CBERS-02b上输出的气溶胶MTF更具降解性。然而，对于湍流MTF来说，情况正好相反。此外，还选取了CBERS-02B和HJ-1A/1B在北京、中国和HJ-1A/1B四个不同日期获取的ccd图像。这些图像的总体大气MTF是根据气溶胶机器人网络(Aeronet)的气溶胶产品和无线电探测数据确定的。结果表明，CBERS-02b相机的大气MTF对图像质量的影响比HJ-1A/1B相机严重。此外，基于总体大气MTF对这些CCD图像进行了大气MTF补偿并进行了评估。
Atmospheric turbulence and aerosol scattering can produce the blurring of the remotely sensed image. The degrading effect is usually quantified by atmospheric modulation transfer function (MTF). However, this effect behaves differently with different remote sensors. The effort of this article is to study the different degrading effects of aerosol MTF and turbulence MTF between charge-coupled device (CCD) camera on China–Brazil Earth Resources Satellite-02b (CBERS-02b) and on Huan Jing-1A/1B satellite (HJ-1A/1B). Specifically, a corrected aerosol MTF model is established based on classical solution of small-angle approximation (SAA) model by considering the MTF and the effective instantaneous field of view (EIFOV) of CCD cameras. By assuming many different atmospheric conditions, the aerosol MTF and turbulence MTF for two CCD cameras are evaluated. It is found that the output aerosol MTF of CCD camera on HJ-1A/1B causes more degrading effect than that of CBERS-02b under the same atmospheric condition. However, the situation reverses for the turbulence MTF. Furthermore, CCD images acquired over Beijing, China, by CBERS-02b and HJ-1A/1B on four different dates are selected. The overall atmospheric MTF for these images are determined based on the aerosol products from Aerosol Robotic Network (Aeronet) and radiosounding data. Results indicate that the overall atmospheric MTF of CBERS-02b CCD camera reduces image quality more seriously than that of HJ-1A/1B CCD camera. Additionally, the atmospheric MTF compensation is performed and evaluated for these CCD images based on the overall atmospheric MTF.
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影响因子：
3.4
作者：
C. Varotsos;J. Ondov;A. Cracknell;M. Efstathiou;M. Assimakopoulos
通讯作者：
C. Varotsos;J. Ondov;A. Cracknell;M. Efstathiou;M. Assimakopoulos
影响因子：
6
作者：
C. Varotsos
通讯作者：
C. Varotsos
DOI：
--
发表时间：
2000
期刊：
Journal of Tianjin Institute of Technology
影响因子：
--
作者：
L. Shuang
通讯作者：
L. Shuang
影响因子：
1.9
作者：
C. Coulman;J. Vernin;Y. Coqueugniot;J. Caccia
通讯作者：
C. Coulman;J. Vernin;Y. Coqueugniot;J. Caccia
影响因子：
1.9
作者：
N. Kopeika
通讯作者：
N. Kopeika