Method for bandwidth compression and transmission of environmental information in bilateral teleoperation

Ryogo Kubo, Kouhei Ohnishi

Research output: Contribution to journalArticle


In this paper, a novel method for bandwidth compression and transmission of environmental information is proposed for bilateral teleoperation systems with multiple degrees of freedom (MDOF). In this method, environmental information, that is, the position of end-effectors and the reaction force exerted on them, is converted into environmental modes by using discrete Fourier transform (DFT) matrices. The environmental modes to be transmitted are then selected on the basis of the communication bandwidth between master and slave robots. Bilateral control is achieved in low-frequency modal spaces, and local position control is achieved in high-frequency modal spaces. The validity of the proposed method is confirmed by performing an experiment. © 2011 Wiley Periodicals, Inc. Electr Eng Jpn, 178(2): 47-54, 2012; Published online in Wiley Online Library (). DOI 10.1002/eej.21206

Original languageEnglish
Pages (from-to)47-54
Number of pages8
JournalElectrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
Issue number2
Publication statusPublished - 2012 Jan 30



  • bandwidth compression
  • bilateral control
  • discrete Fourier transform (DFT)
  • haptics
  • mode transformation

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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