Canberra, Australia

Australian Defence Force Academy

www.adfa.edu.au
Canberra, Australia

The Australian Defence Force Academy is a tri-service military Academy that provides military and tertiary academic education for junior officers of the Australian Defence Force in the Royal Australian Navy , Australian Army and Royal Australian Air Force .Tertiary education is provided by the University of New South Wales Canberra campus, which is the awarding body for ADFA qualifications. Apart from educating future leaders of the Australian Defence Force, UNSW campus also provides postgraduate programs and short courses both to Department of Defence personnel and the general public.The stated purpose of ADFA is "to serve Australia by providing the Australian Defence Force with tertiary graduates who have the attributes, intellect and skills required of an officer."ADFA is located in the suburb of Campbell, Canberra, Australian Capital Territory, near the Australian Government district of Russell. It is situated next to Mount Pleasant, which gives some parts of ADFA a view over the rest of Canberra. The ADFA is also adjacent to the Australian Army military academy, the Royal Military College, Duntroon.The junior officers that attend the Australian Defence Force Academy hold the rank of Midshipman in the Royal Australian Navy, Officer Cadet in the Australian Army and Officer Cadet in the Royal Australian Air Force. The Academy is currently commanded by Air Commodore Alan Clements. Wikipedia.

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Marsh M.T.,Australian Defence Force Academy
Journal of International Peacekeeping | Year: 2016

The Australian Defence Force (adf) has had a number of inquiries or reviews into its military justice system in the past two decades. The recommendations of those inquiries have led to an increasing 'civilianisation' of the military discipline system. Nowhere is this more apparent than in the specific requirement of section 70 of the Defence Force Discipline Act (dfda) which requires sentencing authorities to explicitly consider 'civilian' sentencing principles. Given that the vast majority of adf personnel plead guilty during summary hearings, it is the sentencing process that is the most critical exercise of legal principles in the summary jurisdiction. The requirement to explicitly consider civilian sentencing principles, where such principles are not defined in the dfda, and are hotly contested amongst highly educated and experienced civilian lawyers, is impractical, inappropriate and does not serve what should be the fundamental purpose of the dfda: The maintenance of service discipline. This paper will discuss the difficulties of the current 'civilianisation' of the sentencing process and will propose potential guidelines for legislative reform of section 70 of the dfda, particularly in relation to summary authority hearings. © 2017 by Koninklijke Brill NV, Leiden, The Netherlands.


Merrick K.E.,Australian Defence Force Academy
Adaptive Behavior | Year: 2010

The behavior of natural systems is governed by rhythmic behavior cycles at the biological, cognitive, and social levels. These cycles permit natural organisms to adapt their behavior to their environment for survival, behavioral efficiency, or evolutionary advantage. This article proposes a model of behavior cycles as the basis for motivated reinforcement learning in developmental robots. Motivated reinforcement learning is a machine learning technique that incorporates a value system with a trial-and-error learning component. Motivated reinforcement learning is a promising model for developmental robotics because it provides a way for artificial agents to build and adapt their skill-sets autonomously over time. However, new models and metrics are needed to scale existing motivated reinforcement learning algorithms to the complex, real-world environments inhabited by robots. This article presents two such models and an experimental evaluation on four Lego Mindstorms NXT robots. Results show that the robots can evolve measurable, structured behavior cycles adapted to their individual physical forms. © 2010 International Society for Adaptive Behavior.


Maalouf A.I.,Australian Defence Force Academy | Petersen I.R.,Australian Defence Force Academy
IEEE Transactions on Automatic Control | Year: 2011

This paper considers the bounded real properties for a class of linear quantum systems which can be defined by complex quantum stochastic differential equations in terms of annihilation operators only. The paper considers complex quantum versions of the Bounded Real Lemma, the Strict Bounded Real Lemma and the Lossless Bounded Real Lemma. For the class of quantum systems under consideration, it is shown that the question of physical realizability is related to the Bounded Real and Lossless Bounded Real properties. © 2006 IEEE.


Maalouf A.I.,Australian Defence Force Academy | Petersen I.R.,Australian Defence Force Academy
IEEE Transactions on Automatic Control | Year: 2011

This paper considers a coherent H∞ control problem for a class of linear quantum systems which can be defined by complex quantum stochastic differential equations in terms of annihilation operators only. For this class of quantum systems, a solution to the H∞ control problem can be obtained in terms of a pair of complex algebraic Riccati equations. In addition, the question of physical realizability of the resulting quantum controllers is related to a bounded real property. © 2006 IEEE.


This paper presents a new approach to constructive output feedback robust nonlinear guaranteed cost controller design. The approach involves a class of controllers which include copies of the slope bounded nonlinearities occurring in the plant. Dynamic multipliers are introduced to exploit these repeated nonlinearities. The linear part of the controller is synthesized using minimax LQG control theory. © 2010 Elsevier Ltd. All rights reserved.


Petersen I.R.,Australian Defence Force Academy
IEEE Transactions on Automatic Control | Year: 2013

This technical note considers the use of singular perturbation approximations for a class of linear quantum systems arising in the area of linear quantum optics. The technical note presents results on the physical realizability properties of the approximate system arising from singular perturbation model reduction. © 2012 IEEE.


Petersen I.R.,Australian Defence Force Academy
Systems and Control Letters | Year: 2012

This paper presents a method for approximating a class of complex transfer function matrices corresponding to physically realizable complex linear quantum systems. The class of linear quantum systems under consideration includes interconnections of passive optical components such as cavities, beam-splitters, phase-shifters and interferometers. This approximation method builds on a previous result for cascade realization and gives good approximations at low frequencies. © 2011 Elsevier B.V. All rights reserved.


Ugrinovskii V.,Australian Defence Force Academy
Automatica | Year: 2013

The paper considers a distributed robust estimation problem over a network with Markovian randomly varying topology. The objective is to deal with network variations locally, by switching observer gains at affected nodes only. We propose sufficient conditions which guarantee a suboptimal H∞ level of relative disagreement of estimates in such observer networks. When the status of the network is known globally, these sufficient conditions enable the network gains to be computed by solving certain LMIs. When the nodes are to rely on a locally available information about the network topology, additional rank constraints are used to condition the gains, given this information. The results are complemented by necessary conditions which relate properties of the interconnection graph Laplacian to the mean-square detectability of the plant through measurement and interconnection channels. © 2012 Elsevier Ltd. All rights reserved.


Shaiju A.J.,Indian Institute of Technology Madras | Petersen I.R.,Australian Defence Force Academy
IEEE Transactions on Automatic Control | Year: 2012

A recently emerging approach to the feedback control of linear quantum systems involves the use of a controller which itself is a quantum linear system. This approach to quantum feedback control, referred to as coherent quantum feedback control, has the advantage that it does not destroy quantum information, is fast, and has the potential for efficient implementation. An important issue which arises both in the synthesis of linear coherent quantum controllers and in the modeling of linear quantum systems, is the issue of physical realizability. This issue relates to the property of whether a given set of linear quantum stochastic differential equations corresponds to a physical quantum system satisfying the laws of quantum mechanics. Under suitable assumptions, the paper shows that the question of physical realizability is equivalent to a frequency domain (J,J) -unitary condition. This is important in controller synthesis since it is the transfer function matrix of the controller which determines the closed loop system behavior. © 2012 IEEE.


Ugrinovskii V.,Australian Defence Force Academy
Proceedings of the IEEE Conference on Decision and Control | Year: 2011

The paper considers a problem of consensus-based synchronization of uncertain parameter varying multi-agent systems with Lipschitz-continuous nonlinearities. The objective is to construct simultaneously consensus and observer schedules for each agent to ensure an asymptotic synchronized behaviour of all agents. A gain-scheduling algorithm is proposed which solves this problem while maintaining a specified suboptimal H ∞ level of relative disagreement between the agents. The algorithm uses interpolation to ensure the continuity of the interconnection and observer gains. It preserves the H ∞ consensus properties of the interpolants. © 2011 IEEE.

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