Feedback Control and the Arrow of Time

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• Professor Malcolm Smith (Cambridge University Engineering Department)
• Friday 30 May 2008, 11:00-12:00
• Cambridge University Engineering Department, Lecture Room 12.

If you have a question about this talk, please contact Dr Guy-Bart Stan.

The talk reports on recent joint work with Tryphon Georgiou on the central role that the time asymmetry of stability plays in feedback control. It is shown that this provides a new perspective on the use of doubly-infinite or semi-infinite time axes for signal spaces in control theory. The talk goes on to explain the implications of this time asymmetry in modeling uncertainty, regulation and robust control. We point out that modeling uncertainty and the ease of control depend critically on the direction of time. We also discuss the relationship of this control-based time-arrow with the well known arrows of time in physics.

This talk is part of the CUED Control Group Seminars series.

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