TY - GEN
T1 - A condition for better estimation using asynchronous sampling than synchronous sampling
AU - Arai, Shogo
AU - Iwatani, Yasushi
AU - Hashimoto, Koichi
PY - 2014/3/26
Y1 - 2014/3/26
N2 - This paper investigates state estimation performance for sensor systems with synchronous sampling and asynchronous sampling. It is assumed that system dynamics are described by a class of scalar discrete-time linear systems and a Kalman filter is implemented. The sensors in a sensor system with synchronous sampling are synchronized by a synchronizing signal, and all the sensors work at the same time. Sampling rates of a sensor system with asynchronous samplign are determined stochastically and not constants. It is demonstrated that synchronous sampling is not always better than asynchronous sampling. In particular, this paper gives a sufficient condition, in terms of system parameters, for the estimation performance of systems with asynchronous sampling to be better than synchronous sampling.
AB - This paper investigates state estimation performance for sensor systems with synchronous sampling and asynchronous sampling. It is assumed that system dynamics are described by a class of scalar discrete-time linear systems and a Kalman filter is implemented. The sensors in a sensor system with synchronous sampling are synchronized by a synchronizing signal, and all the sensors work at the same time. Sampling rates of a sensor system with asynchronous samplign are determined stochastically and not constants. It is demonstrated that synchronous sampling is not always better than asynchronous sampling. In particular, this paper gives a sufficient condition, in terms of system parameters, for the estimation performance of systems with asynchronous sampling to be better than synchronous sampling.
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M3 - Conference contribution
AN - SCOPUS:84955206644
T3 - 2009 European Control Conference, ECC 2009
SP - 3719
EP - 3724
BT - 2009 European Control Conference, ECC 2009
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2009 10th European Control Conference, ECC 2009
Y2 - 23 August 2009 through 26 August 2009
ER -