Negative imaginary (NI) systems play an important role in the robust control of highly
resonant flexible structures. In this paper, a generalized NI system framework is presented. A …

This paper deals with the notion of output strictly negative-imaginary systems. A definition is
given for the class of output strictly negative-imaginary systems and a lemma is proposed to …

This paper studies non-proper negative imaginary systems. First, the concept of negative
imaginary transfer functions that may have poles at the origin and infinity is introduced …

This paper exploits the decentralized integral controllability (DIC) of stable negative-
imaginary (NI) systems with non-singular DC-gain matrix to develop a constant input …

This letter extends the class of systems to which negative imaginary (NI) stability result can
be (directly) applied. The existing closed-loop stability results for NI interconnections require …

This paper presents a new definition of negative imaginary (NI) systems to include poles at
the origin. Also, a necessary and sufficient stability conditions of positive feedback …

This paper covers recent developments in the theory of negative imaginary systems and
their application to the control of highly resonant flexible structures. The theory of negative …

Laser beam stabilization systems have important engineering applications, for example in
aircraft/spacecraft targeting, and free space laser-based communication, etc. Recent studies …

This paper investigates negative imaginary system theory based control solution for the
position and attitude control problem of 3 degrees of freedom (DOF) helicopter system. The …

This paper presents a generalized Riccati equation negative imaginary lemma for singular
negative imaginary systems. An algorithmic approach is used to determine if a system is …