Autonomous precision orbit control of ALOS-2 for repeat-pass SAR interferometry

Author

Yamamoto, Takayuki ; Kawano, Isao ; Iwata, Takayoshi ; Arikawa, Yoshihisa ; Itoh, Hayato ; Yamamoto, Manabu ; Nakajima, Kensuke

Author_Institution

Japan Aerosp. Exploration Agency, Tsukuba, Japan

fYear

2013

fDate

21-26 July 2013

Firstpage

2404

Lastpage

2407

Abstract

ALOS-2, the next generation Japanese SAR satellite, is designed to perform autonomous precise orbit control of Earth-referenced repeating orbits for effective repeat-pass SAR interferometry. The orbit control accuracy requirement of ALOS-2 is 500m (95%) with respect to the reference Earth-fixed flight path. This accuracy is guaranteed for all latitudes by not only drag-makeup maneuvers but also frequent inclination maneuvers. The on-board software of ALOS-2 can handle operations of orbit determination, maneuver prediction and planning, and maneuver executions for both drag-makeup maneuvers and inclination maneuvers. This feature of autonomy is expected to be great help for efficient ground operations of ALOS-2.

Keywords

artificial satellites; attitude control; geophysical equipment; radar interferometry; remote sensing by radar; spaceborne radar; synthetic aperture radar; trajectory control; ALOS-2 autonomous precision orbit control; ALOS-2 on board software; Earth fixed flight path; Earth referenced repeating orbits; drag makeup maneuvers; inclination maneuvers; maneuver executions; maneuver planning; maneuver prediction; next generation Japanese SAR satellite; orbit control accuracy requirement; orbit determination; repeat pass SAR interferometry; Accuracy; Atmospheric modeling; Interferometry; Orbits; Satellites; Synthetic aperture radar; Vectors; Aerospace control; Earth Observing System; Orbit control; Spacecraft autonomy; Synthetic aperture radar;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2013 IEEE International

Conference_Location

Melbourne, VIC

ISSN

2153-6996

Print_ISBN

978-1-4799-1114-1

Type

conf

DOI

10.1109/IGARSS.2013.6723304

Filename

6723304