ETS-IV on-orbit identification experiments (1st report, impulse excitation)

Isao Yamaguchi, Shin ichi Ishikawa, Yuichi Chida, Katsuhiko Yamada, Shuichi Adachi

Research output: Contribution to journalArticle

1 Citation (Scopus)


System parameter identification and attitude control experiments (FLEX) have been conducted as one of the bus experiments of Engineering Test Satellite-VI (ETS-VI) launched in August, 1994 by H-II rocket. The objectives of the identification experiment are to evaluate typical identification methods both in the frequency and time domains, to compare the identified parameters with the ones established in the ground test before launch and to construct the standards for designing attitude controller. This paper shows the results of the system parameter identification experiment using impulse excitation by gas jet thrusters for the attitude/orbital control system. Measurement data from attitude control system and paddle mounted accelerometers are down-linked by telemetry and analyzed by the Eigensystem Realization Algorithm (ERA) to identify flexible modal parameters.

Original languageEnglish
Pages (from-to)4182-4189
Number of pages8
JournalNippon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C
Issue number603
Publication statusPublished - 1996 Nov
Externally publishedYes


ASJC Scopus subject areas

  • Mechanical Engineering

Cite this