Small spacecraft formation using potential functions (2009)
A group of small spacecraft able to change its orbital formation through using the potential function is discussed. Spacecraft shapes, sizes and manoeuvering capabilities in general are not...
Non-Keplerian orbits using low thrust, high ISP propulsion systems (2009)
McKay, R.J., Macdonald, M., Bosquillon De Frescheville, Francois, Vasile, M., McInnes, C.R., Biggs, J.D.
The technology of high ISP propulsion systems with long lifetime and low thrust is improving, and opens up numerous possibilities for future missions. The use of continuous thrust can be applied in...
Analysis and control of displaced periodic orbits in the Earth-Moon system (2009)
We consider displaced periodic orbits at linear order in the circular restricted Earth-Moon system, where the third massless body is a solar sail. These highly non-Keplerian orbits are achieved using...
Asymptotic analysis of displaced lunar orbits (2009)
The design of spacecraft trajectories is a crucial task in space mission design. Solar sail technology appears as a promising form of advanced spacecraft propulsion which can enable exciting new...
Designing displaced lunar orbits using low-thrust propulsion (2009)
The design of spacecraft trajectories is a crucial task in space mission design. Solar sail technology appears as a promising form of advanced spacecraft propulsion which can enable exciting new...
Three-dimensional formation flying using bifurcating potential fields (2009)
Suzuki, M., Uchiyama, K., Bennet, Derek J., McInnes, C.R.
This paper describes the design of a three-dimensional formation flying guidance and control algorithm for a swarm of autonomous Unmanned Aerial Vehicles (UAVs), using the new approach of bifurcating...
Artificial halo orbits for low-thrust propulsion spacecraft (2009)
We consider periodic halo orbits about artificial equilibrium points near to the Lagrange points L1 and L2 in the circular restricted three-body problem, where the third body is a low-thrust...
Solar sail formation flying for deep space remote sensing (2009)
In this paper we consider how 'near' term solar sails can be used in formation above the ecliptic plane to provide platforms for accurate and continuous remote sensing of the polar regions of the...
An optimal gains matrix for time-delay feedback control (2009)
In this paper we propose an optimal time-delayed feedback control (TDFC) for tracking unstable periodic orbits (UPOs). It is shown that TDFC will drive a trajectory onto a periodic orbit while...
Time-delayed feedback control in astrodynamics (2009)
In this paper we present time-delayed feedback control (TDFC) for the purpose of autonomously driving trajectories of nonlinear systems into periodic orbits. As the generation of periodic orbits is a...
Solving the potential field local minimum problem using internal agent states (2008)
Mabrouk, Mohamed M., McInnes, C.R.
We propose a new, extended artificial potential field method, which uses dynamic internal agent states. The internal states are modelled as a dynamical system of coupled first order differential...
An emergent wall following behaviour to escape local minima for swarms of agents (2008)
Mabrouk, Mohamed M., McInnes, C.R.
Natural examples of emergent behaviour, in groups due to interactions among the group's individuals, are numerous. Our aim, in this paper, is to use complex emergent behaviour among agents that...
Spacecraft formation-flying using potential functions (2008)
A group of small spacecraft able to change their relative position and attitude through the use of the potential function method is discussed. The spacecraft shapes, sizes and manoeuvring...
Internal agent states: experiments using the swarm leader concept (2008)
Mabrouk, Mohamed M., Murray, Craig W., Johnstone, Kevin, McInnes, C.R.
In recent years, an understanding of the operating principles and stability of natural swarms has proven to be a useful tool for the design and control of artificial robotic agents. Many robotic...
Using internal states and swarming behaviours to enhance the performance of swarm robots (2008)
Mabrouk, Mohamed M., McInnes, C.R.
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Swarm robot social potential fields with internal agent dynamics (2007)
Mabrouk, Mohamed M., McInnes, C.R.
Swarm robotics is a new and promising approach to the design and control of multiagent robotic systems. In this paper we use a model for a second order non-linear system of self-propelled agents...
Swarm potential fields with internal agent states and collective behaviour (2007)
Mabrouk, Mohamed M., McInnes, C.R.
Swarm robotics is a new and promising approach to the design and control of multi-agent robotic systems. In this paper we use a model for a system of self-propelled agents interacting via pairwise...