|Distributed Observer-based LQ Controller Design and Stabilization for Discrete-time Multi-agent Systems
Chunyan Han* and Wei Wang
International Journal of Control, Automation, and Systems, vol. 16, no. 4, pp.1765-1774, 2018
Abstract : "This paper will investigate the distributed observer-based LQ controller design and stabilization problem
for uncoupled identical linear time-invariant multi-agent systems with a performance index coupling the behavior
between the multi-agents. A design method is proposed by applying the decomposition of the global discrete-time
algebraic Riccati equations. A computationally tractable solution can be obtained by solving four local algebraic
Riccati equations which have the same dimensions as a single agent. The stability condition is given in terms of
the spectrum of two matrices representing the desired sparsity pattern of the distributed controller and distributed
observer. A limited overall performance can also be guaranteed by the proposed distributed controller which is
parameterized by two scalars. To illustrate the effectiveness of the algorithm, a numerical example is provided."
Distributed linear quadratic control, multi-agent system, observer design, robust stability.