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Hidden Markov model state estimation with randomly delayed observations

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2 Author(s)
Evans, J.S. ; Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA, USA ; Krishnamurthy, V.

This paper considers state estimation for a discrete-time hidden Markov model (HMM) when the observations are delayed by a random time. The delay process is itself modeled as a finite state Markov chain that allows an augmented state HMM to model the overall system. State estimation algorithms for the resulting HMM are then presented, and their performance is studied in simulations. The motivation for the model stems from the situation when distributed sensors transmit measurements over a connectionless packet switched communications network

Published in:

Signal Processing, IEEE Transactions on  (Volume:47 ,  Issue: 8 )

Date of Publication:

Aug 1999

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