TY - JOUR
T1 - Consensus of Linear MIMO Multiagent Systems
T2 - Appointed-Time Reduced-Order Observer-Based Protocols
AU - Liu, Tianqi
AU - Liu, Mengquan
AU - Wen, Guanghui
AU - Lv, Yuezu
AU - Fu, Junjie
N1 - Publisher Copyright:
© 2013 IEEE.
PY - 2022/10/1
Y1 - 2022/10/1
N2 - This article is devoted to designing distributed adaptive attack-free protocols for the consensus of linear multi-input multioutput multiagent systems under directed graphs, where the appointed-time reduced-order observers are proposed based only upon the relative output information among neighboring agents. One of the distinguishing features of the attack-free protocols lies in the prohibition on information transmission via the communication channel. By viewing the relative control input as the unknown input on the dynamics of each agent, a class of new unknown input observers is introduced with only the relative output measurement involved. The appointed-time estimation of the consensus error is achieved by utilizing jump discontinuity in the observer design and employing the property of the nilpotent matrix. Moreover, a linear transformation is made on the system of consensus error to realize the observer order reduction. Both theoretical analysis and simulation illustration are presented to reveal the effectiveness of the proposed attack-free protocols.
AB - This article is devoted to designing distributed adaptive attack-free protocols for the consensus of linear multi-input multioutput multiagent systems under directed graphs, where the appointed-time reduced-order observers are proposed based only upon the relative output information among neighboring agents. One of the distinguishing features of the attack-free protocols lies in the prohibition on information transmission via the communication channel. By viewing the relative control input as the unknown input on the dynamics of each agent, a class of new unknown input observers is introduced with only the relative output measurement involved. The appointed-time estimation of the consensus error is achieved by utilizing jump discontinuity in the observer design and employing the property of the nilpotent matrix. Moreover, a linear transformation is made on the system of consensus error to realize the observer order reduction. Both theoretical analysis and simulation illustration are presented to reveal the effectiveness of the proposed attack-free protocols.
KW - Appointed-time observer
KW - attack-free protocol
KW - multiagent system
KW - reduced-order observer
UR - http://www.scopus.com/inward/record.url?scp=85103302170&partnerID=8YFLogxK
U2 - 10.1109/TCYB.2021.3062424
DO - 10.1109/TCYB.2021.3062424
M3 - Article
C2 - 33735092
AN - SCOPUS:85103302170
SN - 2168-2267
VL - 52
SP - 10604
EP - 10610
JO - IEEE Transactions on Cybernetics
JF - IEEE Transactions on Cybernetics
IS - 10
ER -