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L2 stability analysis of four channel teleoperation and experiments under varying time delay | IEEE Conference Publication | IEEE Xplore

L2 stability analysis of four channel teleoperation and experiments under varying time delay


Abstract:

This paper analyses the L2 stability of four channel teleoperation systems under time delay. It is a well known fact that four channel architecture provides the best perf...Show More

Abstract:

This paper analyses the L2 stability of four channel teleoperation systems under time delay. It is a well known fact that four channel architecture provides the best performance when no delay is present on the communication channels. However when delay is present four channel systems can not guarantee stability or good performance. The L2 analysis we present using small gain theorem indeed confirms that conventional four channel architecture is unstable when damping is not present in the contact surfaces. We propose the damping injection method for four channel teleoperators in order to make the architecture delay independently stable and we show with the same analysis that indeed L2 stability can be achieved given adequate damping injection is applied. We also present experiment results under varying time delay to confirm that the architecture is stable and provides good performance.
Date of Conference: 21-24 March 2010
Date Added to IEEE Xplore: 13 May 2010
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Conference Location: Nagaoka, Japan

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