Development of the WAMS-VNIR instrument for SPF-II

Hiroko Matsuyama; Yoshihiko Okamura; Marehito Kasahara; Shigeomi Yoshida; Yoshio Tange

doi:10.1117/12.578742

Abstract

Wide-Angle Multi-Band Sensor-Visible and Near Infrared (WAMS-VNIR) has been developed as an Earth-observation mission instrument for SPF-II. SPF-II is a step toward the realization of Stratospheric Platform (SPF) using airships; it is capable of station-keeping flight at an altitude of 4km. WAMS-VNIR is a STARING multi-spectral imaging radiometer and polarimeter with five bands in wavelengths of 500 to 1000nm. WAMS-VNIR has optics of a 110° FOV, two rotating filter wheels, and a 1280 × 1024 pixel Si-CCD FPA. The wide field-of-view optics enable observing an 8km area even from an altitude of 4km. Five narrow-band spectral filters are installed on a rotating wheel, and two polarizers are installed on another rotating wheel. The polarizers rotate around the optical axis separately from the rotation of the wheel, providing several advantages in polarization measurement. The sensor system was completed and performance checks are being conducted. This paper introduces the sensor system and its performance.

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Hiroko Matsuyama, Hiroko Matsuyama, Yoshihiko Okamura, Yoshihiko Okamura, Marehito Kasahara, Marehito Kasahara, Shigeomi Yoshida, Shigeomi Yoshida, Yoshio Tange, Yoshio Tange, } "Development of the WAMS-VNIR instrument for SPF-II", Proc. SPIE 5659, Enabling Sensor and Platform Technologies for Spaceborne Remote Sensing, (11 January 2005); doi: 10.1117/12.578742; https://doi.org/10.1117/12.578742

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