Stability for second-order chaotic sigma delta quantization

Details Stability for second-order chaotic sigma delta quantization Stability for second-order chaotic sigma delta quantization

2011-11-02

arxiv.org/abs/1111.0607v2

Mathematics

Dynamical Systems

15 pages, 5 figures

Scientific paper

We prove that that second-order (double-loop) chaotic sigma-delta schemes are stable - within a certain parameter range, all state variables of the system are guaranteed to remain uniformly bounded. To our knowledge this is the first general stability result for chaotic sigma-delta schemes of order greater than one. Invariably as the amount of expansion added to the system is increased, the dynamic range of the input must get smaller for stability to be guaranteed. We give explicit bounds on this trade-off and verify through numerical simulation that these bounds are near-optimal.

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