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The paper discusses two methods of optimal excitation signal design for identiication with Maximum Likelihood parameter estimation: The \classical", dispersion function based method, and a new, semideenite programming based one. It is shown that the dispersion function based algorithm is a primal-dual method. The problem can be formulated as matrix(More)
Researches done based on basic inverter topologies show that multilevel inverters (MLIs) have many advantages, such as low power dissipation on power switches, low dv/dt ratios, low harmonic and low electromagnetic interference (EMI) outputs. The most common MLI topologies have been studied to define the most appropriate structure for Sinusoidal Pulse Width(More)
This study introduces original system architecture for the Web based remote experimentation applications for e-learning systems. The speed control of a traveling wave ultrasonic motor (USM) is achieved as a remote experimental study over the Internet to illustrate the architecture. For this reason, a microcontroller based digitally controlled drive system(More)
In this study, a communication system to send an eight-bits data to the receiver via an energy transmission (power) line was designed and tested. On the transmitter three buttons were used to send three different data to the line. On the receiver side, a buzzer and an LCD screen were used for the voice warning and for indication of the button which a call(More)
In this paper we develop a convergence analysis in an infinite dimensional setting of the Levenberg-Marquardt iteration for the solution of an hybrid conductivity imaging problem. The problem consists in determining the spatially varying conductivity σ from a series of measurements of power densities for various voltage inductions. Although this problem has(More)
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