Normally visual surveillance systems are based on background subtraction to detect foreground objects and then conduct multiple objects tracking with data association and tracking filters in an open-loop procedure. Different from the state-of-the-art approaches, this paper discusses a closed-loop object detection and tracking method. In our proposed method, each pixel is first modeled with an a...

The fusion of GPS and INS is undertaken at different levels to leverage the benefits of both technologies, and to provide a robust solution. Loose and Tight Coupling schemes have been in existence for more than a decade. Though these two configurations were used in many applications, the goal is always to improve the robustness of the navigation solution. With this objective, and the rapid deve...

In this paper a closed-loop cruise controller to minimise the running costs of the heavy-haul train is proposed. Consideration is given to velocity tracking, intrain force and fuel consumption, as well as optimisation of them. To overcome the communication constraints, a fencing concept is introduced whereby the controller is reconfigured adaptively to the current track topology. Simulation res...

A microprocessor based solar tracking controller is designed and fabricated . In addition to tracking , the controller is capable acquiring photovoltaic and metereological data from a photovoltaic system and controlling battery / load . These features are extremely useful in autonomous PV system installed in remote areas for system control and monitoring. Solar tracking can be achieved in close...

Non-minimum phase (NMP) model is a discrete-time model obtained from small or reducing sampling-time of open-loop input and output experimental data. The classical feed-forward controller design of this model using inverse of the closed-loop transfer function would produce an unstable tracking control. This is due to phase and gain errors that caused by NMP zero. Thus, zero phase error tracking...

This article describes an improvement to integral resonance damping control (IRC) for reference tracking applications, such as scanning probe microscopy and nanofabrication. It is demonstrated that IRC control introduces a low-frequency pole into the tracking loop that is detrimental for performance. In this work, the location of this pole is found analytically using Cardano’s method then compe...

The tracking (mean-square timing-error) performance of a linearized datatransition tracking loop (LDTTL) is presented. The difference between the LDTTL and the conventional DTTL is that the hard-limiter nonlinearity in the conventional DTTL’s inphase arm is replaced by a linear device, as suggested by the maximum a posteriori (MAP) open-loop estimate of symbol timing at low symbol signal-to-noi...

The intrinsic hysteresis behavior of piezoelectric material limits the tracking control accuracy of the actuators. This paper describes a tracking control method for piezoelectric actuators based on the combination of feedforward and feedback loops. The hysteresis of piezoelectric actuators is linearized in feedforward loop with an inverse hysteresis model based on a neural network. The number ...

In this paper, a mechatronic tracking system used for increasing the energetic efficiency of the photovoltaic (PV) modules is designed and simulated. The tracking system is approached in the concurrent engineering concept, integrating the mechanical device and the control system at the virtual prototype level. The virtual prototype is a control loop composed by the multi-body (MBS) mechanical m...

This paper presents the development, validation, and deployment of the visual target tracking capability onto the Mars Exploration Rover (MER) mission. Visual target tracking enables targeted driving, in which the rover approaches a designated target in a closed visual feedback loop, increasing the target position accuracy by an order of magnitude and resulting in fewer ground-in-the-loop cycle...