This paper introduces the class of Time-Domain Input–Output Negative Imaginary (TD-IONI)
systems. The new TD-IONI definition unifies the class of the existing Negative Imaginary (NI) …

This paper extends the properties of a positive feedback interconnection of two negative
imaginary (NI) systems to multi‐agent NI systems and proposes a new formation …

This paper proposes a new controller design methodology for stable and minimum-phase
Negative Imaginary (NI) systems relying on the classical Internal Model Control (IMC) …

In this article, we present necessary and sufficient conditions under which a linear time-
invariant (LTI) system is state feedback equivalent to a negative imaginary (NI) system. More …

This brief proposes a consensus-based formation tracking scheme for multi-robot systems
utilising the Negative Imaginary (NI) theory. The proposed scheme applies to a class of …

Cooperative control of networked unmanned aerial vehicles (UAVs) has received significant
research interest over the last decade due to its potential applications in military security and …

This paper develops a cooperative controller for a fleet of multi-tilt tricopter drones modelled
as Negative Imaginary (NI) systems via closed-loop linearisation exploiting Sliding-Mode …

This article focuses on negative imaginariness of commensurate fractional-order linear time-
invariant systems. Enlightened by the generalized Kalman–Yakubovic–Popov lemma …

In this note, we present an extension of the nonlinear negative imaginary (NI) systems theory
to reset systems. We define the reset negative imaginary (RNI) and reset strictly negative …

This letter introduces the notion of linear Discrete-time Output Negative Imaginary (D-ONI)
systems. The D-ONI class is defined in the z-domain and it includes the systems having …