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Proceedings Paper

ALOS-2 initial results
Author(s): Yukihiro Kankaku; Shinichi Suzuki; Masanobu Shimada
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Paper Abstract

The Advanced Land Observing Satellite-2 (ALOS-2) was launched from Tanegashima Space Center by H-IIA rocket successfully on 24th May 2014. ALOS-2 carries the Phased Array type L-band Synthetic Aperture Radar-2 (PALSAR-2) as the state-of-the-art L-band SAR system which succeeds to PALSAR onboard ALOS. PALSAR-2 uses almost whole bandwidth allocated for L-band active sensor of Earth Exploration Satellites Service specified by the Radio Regulation in order to realize the high resolution observation, and also, it transmits more than 6 kW power for lower Noise Equivalent Sigma Zero using 180 TRMs driven by Gallium Nitride (GaN) amplifier which is the first use in space. Furthermore, because ALOS-2 carries the SAR system only, PALSAR-2 antenna can be mounted under the satellite body. It enables to observe right-/left-looking observation by satellite maneuvering. And the high accuracy orbit control to maintain the satellite within 500 m radius tube against the reference orbit enables high coherence for the InSAR processing. Using these new technologies, ALOS-2 has been operating to fulfill the mission requirements such as disaster monitoring and so on. This document introduces the initial result of ALOS-2 from the first year operation.

Paper Details

Date Published: 12 October 2015
PDF: 6 pages
Proc. SPIE 9639, Sensors, Systems, and Next-Generation Satellites XIX, 96390D (12 October 2015); doi: 10.1117/12.2194761
Show Author Affiliations
Yukihiro Kankaku, Japan Aerospace Exploration Agency (Japan)
Shinichi Suzuki, Japan Aerospace Exploration Agency (Japan)
Masanobu Shimada, Japan Aerospace Exploration Agency (Japan)


Published in SPIE Proceedings Vol. 9639:
Sensors, Systems, and Next-Generation Satellites XIX
Roland Meynart; Steven P. Neeck; Haruhisa Shimoda, Editor(s)

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