Experimental checking of the spectropolarimeter for airborne remote sensing

Kohzo Homma; Hirokimi Shingu; Hirohisa Kurosaki; Takao Suzuki; Hiromichi Yamamoto; Shigeharu Enkyo

doi:10.1117/12.462578

8 April 2003 Experimental checking of the spectropolarimeter for airborne remote sensing

Kohzo Homma, Hirokimi Shingu, Hirohisa Kurosaki, Takao Suzuki, Hiromichi Yamamoto, Shigeharu Enkyo

Proceedings Volume 4881, Sensors, Systems, and Next-Generation Satellites VI; (2003) https://doi.org/10.1117/12.462578
Event: International Symposium on Remote Sensing, 2002, Crete, Greece

Abstract

The National Aerospace Laboratory of Japan has developed a new type of optical sensor, an imaging spectropolarimeter which uses a liquid crystal tunable filter, for airborne and satellite-based remote sensing of the Earth's environment. Ground-based field experiments conducted as a preliminary to flight evaluations have demonstrated the feasibility of acquiring spectral images of objects irradiated by solar rays, and confirmed that solar rays reflected from different targets have characteristic spectropolarimetric properties. This paper first presents an outline of the developed spectropolarimeter. Next, the apparatus and procedures for the field experiments are described. The spectropolarimetric characteristics of solar rays reflected from a range of targets are then shown by relative radiance as the results of analyzed experimental data, and spectral images acquired at various wavelengths and polarization angles are shown. Plans to evaluate the sensor in a flight environment are described. Possible applications of the optical sensor are also introduced: observation of water quality deterioration in brackish lakes, applications to agro-environmental science, and applicability to a fish-finding system. Finally, it is concluded that results of the field experiments demonstrate that the way has been paved for determining surface characteristics from the optical sensor output.

Citation Download Citation

Kohzo Homma, Hirokimi Shingu, Hirohisa Kurosaki, Takao Suzuki, Hiromichi Yamamoto, and Shigeharu Enkyo "Experimental checking of the spectropolarimeter for airborne remote sensing", Proc. SPIE 4881, Sensors, Systems, and Next-Generation Satellites VI, (8 April 2003); https://doi.org/10.1117/12.462578

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