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This paper investigates the problem of automatic target detection in a Pareto background under multiple target situations. The number of interfering targets is assumed to be unknown. We derive the Enhanced Variability Index Automatic Selection and Detection Constant False Alarm Rate (EVI-ASD-CFAR) Processor. This latter selects and matches dynamically the suitable detector among the Geometric Mean...
The multispectral imagery spatial resolution enhancement with logical reallocation of spectra is presented. This method includes preprocessing, subpixel resampling, subpixel neighborhood analysis and subpixel values reallocation using similar spectra spatial cross-coupling. This method intended primarily for European Sentinel-2 multispectral satellite system, but it can be adapted to other multispectral...
Depending on the application requirements, wireless sensor networks (WSNs) are composed by static or mobile sensor nodes. The weaknesses of sensors with mobility arise major challenges especially in routing. Routing in WSNs is among the NP-hard optimization problem that requires efficient and robust methods such as metaheuristics. The ant colony optimization (ACO) and the particle swarm optimization...
Getting the daily news from social media has nowadays become a common practice among people. Unreliable sources of information expose people to a dose of hoaxes, rumours, conspiracy theories and misleading news. Mixing both reliable and unreliable information on social media has made the truth to be hardly determined. Academic research indicates an increasing reliance of online users on social media...
This paper proposes a fuzzy gain-scheduled Proportional Integral (PI) and second order sliding mode based control strategy of a two-levels and three-phase Voltage Source Converter (VSC) to adjust its DC-link voltage to constant level and to achieve unity power factor operation. The proposed control scheme has a cascade configuration which consists of an inner current loop based on a Second-Order Sliding...
Recruitment and selection of new employees rank to the important processes of human potential management and development. Especially the process of employee selection prepares proper conditions for a successful work performance and decides on a future progress-ability of the organizations. In a unique sector of private security, the precise realization of employee selection can solve one of the most...
Face increasing demands, the Moroccan hospitals need currently to understand the complexity of the hospitable system at several levels and one of them is medicine drugs supply chain. The medicine drug is a strategic element in the medical policy. Considering the importance of this product in hospital, we propose decision-making models that allow help pharmaceutical staff and we take as example a hospital...
The paper presents the results of numerical modeling of concrete rheological manifestations under compression, the properties of which are described by a linear model of a viscoelastic material. The computer model of concrete with viscoelastic properties selected for studies identified by experimental research results of concrete samples. Computer simulation was carried out in a software environment...
Small and Medium-sized Enterprises (SME) are economic catalysts whose needs should be at the heart of each country's policymaking priority. Either for Large Enterprises or SMEs, Enterprise Resource Planning (ERP) systems are one of the most discussed subjects on the Information System (IS) research field. Their successful implementation promises a 360-view of the business activity, a more consistent...
The main aim of our work is future optimization of microfluidic devices used for capture of rare cells, for instance circulating tumour cells. Since the manufacture of such devices and performing biological experiments are complicated and time consuming, in silico experiments are preferable for this purpose. But first a simulation model has to be properly verified. In this article we propose statistical...
This paper presents performance comparisons of two graphical techniques for modeling and simulation of complex nonlinear mechatronic systems. These techniques are respectively Bond Graph (BG) structural approach and Block Diagram (BD) which is a functional approach. They are applied for the modeling of single wheel electrical vehicle. The BG model is elaborated under 20-SIM environment, while the...
The paper deals with the control algorithms for discrete delayed systems with unknown inputs (disturbances) and model parameters. The control algorithm is based on the local criterion with using Kalman filters and nonparametric estimators. The example is given to illustrate the proposed approach.
In this paper we present a concept of a camera based on a line scanning sensor. The core of the camera is a proprietary broadband MEMS-based row imaging sensor and a powerful multiprocessor chip. We present here the architecture of the camera as well as selected subblocks of the system.
We aim by this work to follow the significant progress in speaker recognition systems getting the benefits of the advancement in the artificial intelligence (AI). Indeed, the deep learning algorithms have proved a real performance in the recognition and classification data. In this contest, we present a study of three different speaker recognition system based in Feed Forward neural networks. The...
The interest in energy storage is still increasing. Energy storage units are installed in high voltage networks, medium voltage networks and low voltage distribution networks as well. These units are often used to improve power quality. One of the criteria for improving power quality is reducing voltage deviations. Depending on the type of network and specifying its R/X ratio, this criterion can be...
This presents a one step solution to compensate for the power amplifier (PA) nonlinearities and in-phase/ quadrature (I/Q) impairments for concurrent dual-band radio frequency (RF) transmitters. This technique is proposed that compensate the in-band intermodulation (IMD) and the cross-modulation distortion (CMD) products in the presence of I/Q imbalance and DC offset imperfections simultaneously using...
This paper concerns the problem of converting High Dynamic Range (HDR) images into Low Dynamic Range (LDR) images so as to display the mapped images on LDR display devices. A fast, effective and flexible tone mapping algorithm preserving visibility, contrast and impression of the HDR real-world scene is developed. It is based on the Stationary Wavelet Transform (SWT) decomposition reducing a large...
An information service (IT service) in the context of the company informatics supports to execute business processes. Business processes need to be supported by targeted and relevant information services to ensure high performance. Company management perceives the information services as a necessary part of the business process and expects their error-free performance. An IT service does not represent...
Recently, 2-D and 3-D shape matching have known a great interest in image and mesh processing. We propose a new spectral method based on the study of the behavior of the dual graph Laplacian matrix of the 3D mesh. Two aspects are evoked in our approach, the first one considers salient detected points matching. The second one considers the correspondEnce of the Laplacian eigenfunction histograms. Obtained...
In this paper, the parameters and reliability characteristics of the mixture of the failure time distribution are estimated based on a complete sample using both Markov chain Monte Carlo (MCMC) method and maximum likelihood estimation via cross-entropy (CE) algorithm. While maximum likelihood estimation is the most frequently used method for parameter estimation, MCMC has recently emerged as a good...
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