The Effect of Randomly Time-Varying Sampling and Computational Delay
| Authors: | Sanfridson Martin, Royal institute of technology, KTH, Sweden
Törngren Martin, Royal institute of technology, KTH, Sweden
Wikander Jan, Royal institute of technology, KTH, Sweden |
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| Topic: | 3.1 Computers for Control |
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| Session: | Control and Embedded Systems |
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| Keywords: | sampled data control, time delay, jitter, discretization, synchronization |
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Abstract
A randomly time-varying sampling period or control delay affects the performance,robustness and stability of a control loop. The variation in sensing and actuation instants iscaused by e.g. multitasking, interactions in distributed systems and varying processing time.The discretization of a continuous-time loss function and process is here extended to the case of aperiodic systems, whenthe control signal exhibits multiple changes during a non-uniform sampling period.
