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A Novel Feature Extraction Method for Isolated Word Recognition Based on Nested Temporal Averaging
("Dunarea de Jos" University of Galati, 2006)
A novel preprocessing method is proposed. It has a reduced complexity and therefore is aimed to be used in low power, VLSI implemented, speech recognizers. Our algorithm extracts a feature vector made from up to 3 feature ...
Sonar Target Localization Based on Spike Coded Spectrograms
("Dunarea de Jos" University of Galati, 2006)
Target location is coded into the pattern of spikes that run up the auditory nerve to the bat's brain. Realistic scenes containing multiple, closely spaced, reflectors give rise to complex echo signals consisting of multiple ...
The Optimal Control for D.C. Position Drive System
("Dunarea de Jos" University of Galati, 2007)
A position drive system with D.C. motor is operated using conventional position, speed and current controls. These controls provide a good dynamic and steady-state behaviour, but they do not take in consideration the ...
Buck Supplies Outiput Voltage Ripple Reduction Using Fuzzy Control
("Dunarea de Jos" University of Galati, 2007)
Using the PWM control for switching power supplies the peaks EMI noise appear at the switching frequency and its harmonics. Using randomize or chaotic PWM control techniques in these systems the power spectrum is spread ...
Minimizing the Error Tracking of Mobile Terminals by Kalman Filtering
(2006)
A method to track mobile terminals in a cellular communication network is presented. It uses the received field strength from the surrounding base stations. A subsequent Kalman filtering is used to minimize the tracking error.
Optimal Coding for Qualitative Sources on Noiseless Channels
("Dunarea de Jos" University of Galati, 2006)
In this paper we perform the encoding for sources which are only qualitatively
characterized, that is, each message the source delivers possesses a certain quality,
expressed as cost, importance or utility. The proposed ...
Automatic Processing of Radar Images for Electronic River Chart Generation in Ecdis Format
("Dunarea de Jos" University of Galati, 2003)
Presenting the navigation environment in electronic format – ECDIS –
triggers a major change of the classic method of cartography and raises up the need to
approach a way of producing the charts in vector-like format. ...
Flexible Joints Robotic Manipulator Control by Adaptive Gain Smooth Sliding Observer-Controller
("Dunarea de Jos" University of Galati, 2003)
An adaptive gain sliding observer for uncertain parameter nonlinear systems
together with an adaptive gain sliding controller is proposed in this paper. It considered
nonlinear, SISO affine systems, with uncertainties ...
Robust Discrete-Time Adaptive Sliding Mode WMR Trajectory Tracking and Parameter Identification
("Dunarea de Jos" University of Galati, 2004)
In this paper a discrete-time adaptive sliding mode controller for three wheels mobile robot (WMR) is presented. The dynamical model with time-varying mass has been taken into account. The sliding-mode controller has ...
Describing Function Method for PI-Fuzzy Controlled Systems Stability Analysis
("Dunarea de Jos" University of Galati, 2004)
The paper proposes a global stability analysis method dedicated to fuzzy control systems containing Mamdani PI-fuzzy controllers with output integration to control SISO linear / linearized plants. The method is expressed ...