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Referring to chaos synchronization, it can be noticed the lack of a general approach enabling any type of synchronization to be achieved. Similarly, there is the lack of a unified method for synchronizing both continuous-time and discrete-time systems via a scalar signal. This paper and the companion one [1] aim to bridge these two gaps by presenting a novel general unified framework to synchronize...
In this paper, the analysis, design and circuit synthesis of a fractional-order form of a chaotic jerk system is presented. The proposed system is one of the simplest member of the jerk system's family, because it has the least number of terms, one of which is the unique nonlinear term of the system. For the first time, the hyperbolic sine term is used as a nonlinear term in this kind of jerk systems,...
In this paper, we make a preliminary coverage study for base stations (BS) in millimeter wave bands based on recently proposed propagation models. More specifically, we compute the cell radius and the coverage area of a future fifth generation (5G) cellular network based on the Close-In (CI) and the Alpha-Beta-Gamma (ABG) radio propagation models. Also, the required base station density is calculated...
This paper describes the development of an image processing algorithm, which can estimate the amount of adulteration of olive oil with soybean oil from a captured photo. This algorithm is intended to be implemented into an application for modern smartphones, where the user can measure the quality of a sample of olive oil, only by taking photos from the sample. The determination of the adulteration...
This paper proposes a methodology for recognition of vocal music (Byzantine music) via multi-modal signals processing. A sequence of multi-modal signals is captured from the expert's (teacher) and student's hymns performances, respectively. The machine learning system is trained using the values of particular features which are extracted from the captured multi-modal signals. After the system is being...
High-level synthesis allows the use of high-level programming languages for hardware design. Traditional programming with the C and ADA languages can lead to efficient hardware description through recently developed high-level synthesis tools. Compilers play an important role in this process, since they can bridge differences between software programming and hardware design methodologies, thus making...
The upgrades of the LHC accelerator and the experiments in 2019/20 and 2023/24 will increase the instantaneous and integrated luminosity, but also will drastically increase the data and trigger rates. To cope with the huge data flow while maintaining high muon detection efficiency and reducing fake muons found at Level-1, the present ATLAS small wheel muon detector will be replaced with a New Small...
Long distance and beyond sight of view communication between a ground control station and an Unmanned Aerial Vehicle (UAV) is mainly achieved using high-gain antennas, antenna trackers or satellites. These implementations demand expensive, heavy and not easily deployed equipment, while in many cases cannot provide a sufficient communication range. The current work proposes and demonstrates a lightweight...
A recursive, odd-even transposition sorter based vector quantizer which is used in mismatch shaping algorithms is presented. Although recursive parallel sorting algorithms require less area than fully parallel sorting algorithms, they are slower than fully parallel algorithms. A widely used recursive parallel sorting algorithm is the perfect shuffle which requires multiple clock cycles to shuffle...
When designing the branch predictors in processors, designers not only need to consider the prediction accuracy, but also should pay attention to the die-area occupied by the predictor, power consumption and other issues. Previous simulations of branch predictors have either only considered accuracy, or used low-speed full system simulators. We presents BPSim, a fast simulation environment for branch...
The ATLAS experiment has planned a major upgrade in view of the enhanced luminosity of the beam delivered by the Large Hadron Collider (LHC) in 2021. As part of this, the trigger at Level-1 based on calorimeter data will be upgraded to exploit fine-granularity readout using a new system of Feature Extractors (three in total), which each uses different physics objects for the trigger selection. The...
The influence of Bias-Temperature Instability (BTI) and Hot Carrier Injection (HCI) on Static Random Access Memory (SRAM) aging is of major importance. In this paper a circuit for the periodic monitoring of BTI and HCI degradation in SRAM cells is proposed. Periodic aging monitoring provides the ability to avoid failures in the memory array by locating and replacing over-degraded cells. The proposed...
The performance of modern systems depends significantly on the cache activity. Hence, tools that monitor the cache performance are very useful for optimization of the software or even, whenever this is possible, the hardware, of a system. In this paper, a tool that provides statistics about the cache activity of the LEON4-N2X embedded system is discussed. The tool analyzes the memory access trace...
The goal of FabSpace 2.0 project is to transform Universities to Open Innovation Centers for their corresponding region and improve their societal contribution to the socio-economic and environmental performance. For this purpose, the project provides to students, researchers, as well as to citizens or even companies, with a framework and a digital platform which gives open access to a range of geodata,...
Underground mining process elevator systems are modelled using the discrete event system approach. A parametric model of the system for n gallery levels is developed in the form of a finite deterministic automaton. The desired performance of the system is expressed in the form of a set of desired languages where their properties have been investigated. A bank of supervisors satisfying the desired...
It is a known fact that an arithmetic function implemented in hardware has a higher throughput and calculation frequency than the one implemented in software, thus making the usage of hardware components imminent in applications where speed plays a crucial role. Sum of absolute difference (SAD) is an arithmetic operation most frequently used in motion estimation algorithms and video coding consequently...
A method to calculate the transfer functions of Multi-Step Look-Ahead (MSLA) ΣΔ modulators is presented. MSLA ΣΔ modulators exhibit better noise shaping characteristics and stability than conventional ones. They are comprised of a number of conventional ΣΔ modulators in parallel, sharing a multi-input 1-bit output quantizer. MSLA modulators are highly nonlinear systems due to the multi-input quantizer...
Restricted Boltzmann Machines are artificial neural networks used in many types of statistical classification. In this work we present the architecture and implementation of such a neural network for fast recognition of hand-written digits. We use fixed and floating point arithmetic for minimizing the required hardware resources, and the use of pipeline results to a processing rate of more than 1...
Free Space Optical (FSO) communications have recently attracted a renewed commercial and research interest. However, the performance of such terrestrial wireless optical links is strongly degraded by the pointing errors effect between the trans-receivers terminals and by the atmospheric turbulence effect whose impact becomes even more detrimental by the propagation distance. In order to combat this...
Over the past twenty years' magnetic sensors have emerged as a preferred choice in many sensory systems due to their high accuracy, reliability and mechanical robustness. This has sparked the development of different types of magnetic sensors for magnetic field measurements as well as for measuring other quantities indirectly. Sensitivity, linearity, signal-to-noise ratio, measurement range and cross-talk...
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