Development of BRDF absolute measuring device

被引：0

作者：

Li, Junlin ^{[1
]}

Zhang, Liming ^{[1
]}

Chen, Hongyao ^{[1
]}

Si, Xiaolong ^{[1
]}

Wang, Jixiang ^{[1
]}

Yang, Baoyun ^{[1
]}

Shen, Zhengguo ^{[1
]}

机构：

[1] Key Laboratory of Optical Calibration and Characterization, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei

来源：

Guangxue Xuebao/Acta Optica Sinica | 2014年 / 34卷 / 05期

关键词：

BRDF absolute measurement; Diffuse panel; On-board calibration; Quantitative remote sensing; Remoting sensing;

D O I：

10.3788/AOS201434.0528002

中图分类号：

学科分类号：

摘要：

The method of on-board calibration based on sun-diffuse panel panel plus radiometer for stability monitoring can improve the level of quantification of remote sensing data, and the BRDF calibration accuracy of diffuse panel is the key of high-precision on-board calibration, and the BRDF absolute measurement can realize high-precision calibration of the diffuse panel. In order to solve the key technology of high-precision BRDF absolute measurement, we design a high-brightness, high-stability and high-uniformity integrating sphere as the lamp source; using a monochromator and a single detector to detect the incident and reflected radiance signals with large dynamic range accurately, moreover using a lock-in amplifier to amplify and acquire the signals; using high-precision six-axis robot and hollow rotary indexing table orientate sample diffuse panel with three-dimensional rotation and translation and lamp source with one-dimensional rotation separately to construct BRDF absolute measuring geometry with high-precision, non-blocking and speediness. The device can realize omnidirectional BRDF measurements except for that out of plane, and measurable angle range is: azimuthal angle is 0°~360°, and zenith angle is 0°~75°. Currently measurable spectral range is 250~1700 nm. The uncertainty degree of this device can be less than 1%.

引用

共 10 条

[1] Yang B., Zhang L., Shen Z., Et al., Characteristic measurement of diffuser panel used for on-board calibration for satellite optical sensors, Optics and Precision Engineering, 17, 8, pp. 1851-1868, (2009)
[2] Qi C., Measurement and application research of BRDF, (2005)
[3] Wei Q., Liu J., Jiang R., Measurement method of absolute bidirectional reflectance-distribution function, Acta Optica Sinica, 16, 10, pp. 1425-1429, (1996)
[4] Chen H., Zhang L., Yang B., Et al., Absolute bidirectional reflectance factor measurement for diffuse reflection standard, J Atmospheric and Environmental Optics, 5, 5, pp. 366-372, (2010)
[5] Xu W., Zhang L., Yang B., Et al., On-orbit radiometric calibration based on gray-scale tarps, Acta Optica Sinica, 32, 2, (2012)
[6] Hunerhoff D., Grusemann U., Hope A., New robot-based gonioreflectometer for measuring spectral diffuse reflection, Metrologia, 43, 2, (2006)
[7] Patrick H.J., Zarobila C.J., Germer T.A., Et al., The NIST robotic optical scatter instrument (ROSI) and its application to BRDF measurements of diffuse reflectance standards for remote sensing, SPIE, 8866, (2013)
[8] Xu X., Remote Physics, (2006)
[9] Mitsubishi industrial robot RV-6SD/6SDL series standard specifications manual, (2002)
[10] Mitsubishi industrial robot CRnQ/CRnD controller instruction manual detailed explanations of functions and operations, (2002)

← 1 →