ALOS-2 initial results

Yukihiro Kankaku; Shinichi Suzuki; Masanobu Shimada

doi:10.1117/12.2194761

12 October 2015 ALOS-2 initial results

Yukihiro Kankaku, Shinichi Suzuki, Masanobu Shimada

Proceedings Volume 9639, Sensors, Systems, and Next-Generation Satellites XIX; 96390D (2015) https://doi.org/10.1117/12.2194761
Event: SPIE Remote Sensing, 2015, Toulouse, France

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.

Citation Download Citation

Yukihiro Kankaku, Shinichi Suzuki, and Masanobu Shimada "ALOS-2 initial results", Proc. SPIE 9639, Sensors, Systems, and Next-Generation Satellites XIX, 96390D (12 October 2015); https://doi.org/10.1117/12.2194761

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Satellites

Interferometric synthetic aperture radar

L band

Synthetic aperture radar

Gallium nitride

Antennas

Electromagnetic coupling

Show All Keywords

Keywords/Phrases

Search In:

Publication Years