TY - JOUR
T1 - Identification of linear dynamic systems operating in a networked environment
AU - Wang, Jiandong
AU - Zheng, Wei Xing
AU - Chen, Tongwen
PY - 2009
Y1 - 2009
N2 - This paper studies a networked system identification problem, which aims at identifying mathematical models required in networked control/estimation/filtering systems. Specifically, we consider the off-line identification of open-loop stable linear time-invariant processes working in a networked environment. In the networked environment, how the actuators (D/A conversion) operate plays a key role in the complexity of the related identification problems. In particular, it is reasonable to consider the configuration of event-driven actuators subject to random network-induced delays and packet dropouts; as a result, the networked identification problem is formulated as the one to identify continuous-time linear time-invariant models, based on the general non-uniformly non-synchronized sampled data. A modified version of the simplified refined instrumental variable method is proposed to solve this problem, and is validated in a networked identification experiment based on the Matlab/Simulink simulator TrueTime.
AB - This paper studies a networked system identification problem, which aims at identifying mathematical models required in networked control/estimation/filtering systems. Specifically, we consider the off-line identification of open-loop stable linear time-invariant processes working in a networked environment. In the networked environment, how the actuators (D/A conversion) operate plays a key role in the complexity of the related identification problems. In particular, it is reasonable to consider the configuration of event-driven actuators subject to random network-induced delays and packet dropouts; as a result, the networked identification problem is formulated as the one to identify continuous-time linear time-invariant models, based on the general non-uniformly non-synchronized sampled data. A modified version of the simplified refined instrumental variable method is proposed to solve this problem, and is validated in a networked identification experiment based on the Matlab/Simulink simulator TrueTime.
KW - automatic control
KW - automation
UR - http://handle.uws.edu.au:8081/1959.7/502626
U2 - 10.1016/j.automatica.2009.09.021
DO - 10.1016/j.automatica.2009.09.021
M3 - Article
SN - 0005-1098
VL - 45
SP - 2763
EP - 2772
JO - Automatica
JF - Automatica
IS - 12
ER -