In imaging systems, following acquisition, an image/video is transmitted or stored and eventually presented to human observers using different and often imperfect display devices. While the resulting quality of the output image may severely be affected by the display, this degradation is usually ignored in the preceding compression. In this paper we model the sub-optimality of the display devic...

This thesis deals with the modeling and control of pulse width modulated (PWM) voltage source converters connected to the grid. When voltage source converters are connected to the grid, the power quality and the dynamic performance are affected by the line filter connected between the converter and the grid, and by nonlinearities caused by the switching converter. In the thesis, the dynamic per...

In this paper, a new structure is provided for the dispersion compensating photonic crystal fibers in order to broaden the chromatic dispersion and increase the dispersion compensating capability in a wide wavelength range. In the structure, putting elliptical holes in the first ring of the inner core clad of a dispersion compensating fiber of the hexagonal lattice, increases the wavelength ran...

This work investigates the anti-saturation attitude tracking control for tailless aircraft with guaranteed output constraints, in presence of uncertain inertia parameters, bounded external disturbance, and actuator faults/failures. A predefined-time adaptive backstepping scheme has been proposed, main features this lie (a) designing a filter to deal ‘explosion complexity’ singularity problem; (...

Monetary and non-monetary incentives for rural teacher recruitment are a prominent feature of developing-country education systems. Despite the widespread use of incentives, there is little theoretical or empirical evidence on their e!ectiveness. This paper interprets incentive policies within the framework of the economic theory of compensating di!erentials. The discussion clari"es the implici...

The use of Disturbance Observer-based (DOB) control is widespread in stabilizing the electromagnetic field superconducting radio frequency cavities to facilitate beam acceleration particle accelerators. Repetitive disturbances such as loading and Lorentz force cavity detuning are compensated by DOB control, their suppression enhanced through incorporation a learning scheme into conventional dis...

Calculation of the reference waveform for compensating current generated by shunt active power filter (ShAPF) can be carried out using various methods. In this article, calculation is performed indirectly on basis tracking and processing ShAPF DC-link capacitor voltage. At same time, energy stored in used to generate current. Therefore, operation during compensation, i.e., changes it voltage it...

For a large class of additive random utility discrete choice models with income effects, we compute the probability distribution of the compensating variation. We show that the cumulative distribution function only depends on the choice probabilities. Our results are used to compute the distribution of equivalent variation. The moments of the compensating variation are a onedimensional integral...