Acta Optica Sinica, Volume. 33, Issue 8, 828003(2013)
Methods to Simultaneously Achieve Radiometric and Polarimetric Accuracy for Multichannel Ultra-Wide-Angle Polarimetric Camera
Multichannel ultra-wide-angle polarimetric camera is a fine solution for polarimetric remote sensing by achieving multispectral, multiangle, and polarimetric information in target detection. By analyzing the optical system of Directional Polarimetric Camera, which belongs to this type, it is shown that the different aspects of the polarization properties of ultra-wide-angle lens (linear diattenuation and retardance) bring different effects on radiometric and polarimetric accuracies so that they can hardly be satisfied simultaneously. Based on the original design of Directional Polarimetric Camera, a method, which includes improved lens design, better optical coating design and modified polarimetric calibration is developed, to satisfy the accuracy specifications. After comparison between these two designs, the result shows that the improved method reduces the above so-called difference effectively. The method can work as a reference for accuracy design of other multichannel ultra-wide-angle polarimetric cameras.
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Qiu Zhenwei, Hong Jin, Li Shuang, Sun Liang. Methods to Simultaneously Achieve Radiometric and Polarimetric Accuracy for Multichannel Ultra-Wide-Angle Polarimetric Camera[J]. Acta Optica Sinica, 2013, 33(8): 828003
Category: Remote Sensing and Sensors
Received: Mar. 11, 2013
Accepted: --
Published Online: Jul. 9, 2013
The Author Email: Zhenwei Qiu (zwqiu@aiofm.ac.cn)