ETS-VI On-Orbit System Identification Experiments

Isao Yamaguchi, Takashi Kida, Keiji Komatsu, Masaaki Sano, Takeshi Sekiguchi, Shin Ichi Ishikawa, Shin Ichiro Ichikawa, Katsuhiko Yamada, Yuichi Chida, Shuichi Adachi

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


System identification and attitude control experiments have been performed as part of a series of bus experiments on the Engineering Test Satellite-VI, which was launched by an H-II rocket in August 1994. The aims of the experiments were to establish a pre-launch system dynamics modeling method, to evaluate typical on-orbit modal parameter identification methods and to develop robust and precise attitude controller design technology for future large flexible spacecraft and large space structures. In the on-orbit identification experiments, the central body of the satellite was excited by gas jet thrusters and the measured attitude and paddle accelerometer signals were downlinked by telemetry. In this paper, the identified parameters are compared with those of the pre-launch modeling and the accuracy of the pre-launch model is evaluated.

Original languageEnglish
Pages (from-to)623-629
Number of pages7
JournalJSME International Journal, Series C: Mechanical Systems, Machine Elements and Manufacturing
Issue number4
Publication statusPublished - 1997 Dec
Externally publishedYes


  • ETS-VI
  • Flexible Structure
  • Identification
  • Impulse Excitation
  • Modal Analysis
  • Modeling
  • Random Excitation
  • Space Engineering

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


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