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Reducing complexity of tail-biting trellises (1202.1336v1)
Published 7 Feb 2012 in cs.IT, cs.SY, and math.IT
Abstract: It is shown that a trellis realization can be locally reduced if it is not state-trim, branch-trim, proper, observable, and controllable. These conditions are not sufficient for local irreducibility. Making use of notions that amount to "almost unobservability/uncontrollability", a necessary and sufficient criterion of local irreducibility for tail-biting trellises is presented.
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