Multi-point calibration method for division-of-amplitude photopolarimetric detection system

Wang Fangbin; Liu Tao; Hong Jin; Zhu Darong; Xu Lu

doi:10.3788/IRLA201746.0517006

Analytical accuracy of polarization remote sensing system is determined by instrumental detection performance. However, it is limited for the instrumental polarization introduced by various factors. In this paper, a multi-point calibration method for measurement matrix of division-of-amplitude (DoA) photopolarimetric detection system had been proposed by analyzing the measurement principle, and the conditions to calibrate a DoA polarization detection system with interval sampling polarization azimuth angle had been derived. Through building a test platform and conducting comparative experiments, the measuring matrix of aviation multi-angular polarimetric radiometer (AMPR) had been determined using the multi-point calibration method mentioned above and the uncertainty had been investigated. The experiment results indicate the measurement error of AMPR is less than 0.5% and corresponding uncertainty is also less than 0.5%, which demonstrate the detection system requirements has been met for AMPR and the feasibility of multi-point calibration method is verified.

Multi-point calibration method for division-of-amplitude photopolarimetric detection system

1. School of Mechanical and Electrical Engineering,Anhui Jianzhu University,Hefei 230601,China;

2. Optics Remote Sensing Center,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China

Received Date: 2016-09-10

Rev Recd Date: 2016-10-20

Publish Date: 2017-05-25

Key words:

Abstract: Analytical accuracy of polarization remote sensing system is determined by instrumental detection performance. However, it is limited for the instrumental polarization introduced by various factors. In this paper, a multi-point calibration method for measurement matrix of division-of-amplitude (DoA) photopolarimetric detection system had been proposed by analyzing the measurement principle, and the conditions to calibrate a DoA polarization detection system with interval sampling polarization azimuth angle had been derived. Through building a test platform and conducting comparative experiments, the measuring matrix of aviation multi-angular polarimetric radiometer (AMPR) had been determined using the multi-point calibration method mentioned above and the uncertainty had been investigated. The experiment results indicate the measurement error of AMPR is less than 0.5% and corresponding uncertainty is also less than 0.5%, which demonstrate the detection system requirements has been met for AMPR and the feasibility of multi-point calibration method is verified.

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Reference (18)

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Multi-point calibration method for division-of-amplitude photopolarimetric detection system

doi: 10.3788/IRLA201746.0517006

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