scholarly journals Implementación electrónica basada en FPAA del oscilador caótico de Lorenz

2020 ◽  
pp. 14-22
Author(s):  
Alejandro SILVA-JUÁREZ ◽  
Jaime ESTEVEZ-CARREÓN ◽  
Juan Jorge PONCE-MELLADO ◽  
Gustavo HERRERA-SÁNCHEZ
Keyword(s):  
Integrated Circuit ◽  
Secure Communication ◽  
Communication Systems ◽  
Computer Arithmetic ◽  
Chaotic Oscillators ◽  
Random Number Generators ◽  
Gate Arrays ◽  
Field Programmable ◽  
Programmable Gate Arrays ◽  
Chaotic Circuits

Nowadays, chaotic systems are very interesting topics for engineers, physicists and mathematicians because most real physical systems are inherently non-linear in nature. The first electronic implementations of autonomous chaotic oscillators were developed using operational amplifiers and diodes, different references detail implementations of chaotic circuits and systems using analog integrated circuit technology, discrete devices such as FPGA (Field programmable gate arrays), microcontrollers, etc. However, analog implementations suffer the problem of sensitivity of analog component values and digital implementations suffer the problem of degradation due to the reduced number of bits to perform computer arithmetic operations. The systems of differential equations that model the chaotic oscillators require integrators that can be implemented with FPAA's (Field programmable analogue array), in this work electronic implementations are developed that are measured in laboratory conditions to observe experimental chaotic attractors, which will be used in the implementation of random number generators and secure communication systems for image encryption.

scholarly journals A P4-Enabled RINA Interior Router for Software-Defined Data Centers

Computers ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 70
Author(s):  
Carolina Fernández ◽  
Sergio Giménez ◽  
Eduard Grasa ◽  
Steve Bunch
Keyword(s):  
Integrated Circuit ◽  
High Performance ◽  
Data Transfer ◽  
Great Promise ◽  
Gate Arrays ◽  
Field Programmable ◽  
Programmable Gate Arrays ◽  
Application Specific Integrated Circuit ◽  
Networking Technologies ◽  
Application Specific

The lack of high-performance RINA (Recursive InterNetwork Architecture) implementations to date makes it hard to experiment with RINA as an underlay networking fabric solution for different types of networks, and to assess RINA’s benefits in practice on scenarios with high traffic loads. High-performance router implementations typically require dedicated hardware support, such as FPGAs (Field Programmable Gate Arrays) or specialized ASICs (Application Specific Integrated Circuit). With the advance of hardware programmability in recent years, new possibilities unfold to prototype novel networking technologies. In particular, the use of the P4 programming language for programmable ASICs holds great promise for developing a RINA router. This paper details the design and part of the implementation of the first P4-based RINA interior router, which reuses the layer management components of the IRATI Linux-based RINA implementation and implements the data-transfer components using a P4 program. We also describe the configuration and testing of our initial deployment scenarios, using ancillary open-source tools such as the P4 reference test software switch (BMv2) or the P4Runtime API.

scholarly journals Power Characterisation for Fine-Grain Reconfigurable Fabrics

2010 ◽  
Vol 2010 ◽  
pp. 1-9 ◽  
Author(s):  
Tobias Becker ◽  
Peter Jamieson ◽  
Wayne Luk ◽  
Peter Y. K. Cheung ◽  
Tero Rissa
Keyword(s):  
Low Power ◽  
Mobile Applications ◽  
Random Number ◽  
Process Technology ◽  
Random Number Generators ◽  
Power Efficient ◽  
Gate Arrays ◽  
Fine Grain ◽  
Field Programmable ◽  
Programmable Gate Arrays

This paper proposes a benchmarking methodology for characterising the power consumption of the fine-grain fabric in reconfigurable architectures. This methodology is part of the GroundHog 2009 power benchmarking suite. It covers active and inactive power as well as advanced low-power modes. A method based on random number generators is adopted for comparing activity modes. We illustrate our approach using five field-programmable gate arrays (FPGAs) that span a range of process technologies: Xilinx Virtex-II Pro, Spartan-3E, Spartan-3AN, Virtex-5, and Silicon Blue iCE65. We find that, despite improvements through process technology and low-power modes, current devices need further improvements to be sufficiently power efficient for mobile applications. The Silicon Blue device demonstrates that performance can be traded off to achieve lower leakage.

Designing Discrete and Digital Communication Systems

2021 ◽  
pp. 542-561
Author(s):  
Stevan Berber
Keyword(s):  
Communication Systems ◽  
Digital Signal ◽  
Clear Understanding ◽  
Gate Arrays ◽  
Advantages And Disadvantages ◽  
Shift Keying ◽  
Field Programmable ◽  
Programmable Gate Arrays ◽  
Signal Processors ◽  
The Relationship

In this chapter, the practical aspects of the design of digital discrete communication systems, primarily digital signal processors and field -programmable gate arrays, are analysed. The systems are presented at the level of block schematics, to address the main issues in their design and discuss the advantages and disadvantages of various designs in digital technology. Designs using quadriphase-shift keying and quadrature amplitude modulation are presented separately. The operation of each system is explained in terms of the theoretical structure of the system, which allows a clear understanding of the relationship between the theoretical model of the system and its practical design. The structures of the first, second, and third generation of discrete transceiver designs are presented and discussed.

scholarly journals Fixed-Point Arithmetic in FPGA

10.14311/692 ◽  
2005 ◽  
Vol 45 (2) ◽  
Author(s):  
M. Bečvář ◽  
P. Štukjunger
Keyword(s):  
Fixed Point ◽  
Integrated Circuits ◽  
Integrated Circuit ◽  
Digital Integrated Circuits ◽  
Arithmetic Operations ◽  
Gate Arrays ◽  
Fixed Point Arithmetic ◽  
Field Programmable ◽  
Programmable Gate Arrays ◽  
Point Arithmetic

Arithmetic operations are among the most frequently-used operations in contemporary digital integrated circuits. Various structures have been designed, utilizing different features of IC architectures. Nevertheless, there are very few studies that consider the design of arithmetic operations in Field Programmable Gate Arrays (FPGAs), a re-programmable type of digital integrated circuit. This text compares the results achieved when implementation of basic fixed-point arithmetic units in FPGA. 

scholarly journals Design and Implementation of MIPS Processor for LU Decomposition based on FPGA

2020 ◽  
Vol 4 (3) ◽  
Author(s):  
Rusul Saad Khalil ◽  
Safaa S. Omran
Keyword(s):  
Integrated Circuit ◽  
High Speed ◽  
Linear Equations ◽  
Lu Decomposition ◽  
Gate Arrays ◽  
The Matrix ◽  
Field Programmable ◽  
Programmable Gate Arrays ◽  
Hardware Description ◽  
Lower Triangle

The solution for a set of liner equations require to find the matrix inverse of a square matrix with same number of the linear equations, this operation require many mathematical calculations. To solve this problem, LU decomposition for the matrix is used, which computes two matrices, a lower triangle matrix and an upper triangle matrix. In this, paper a design for 32-bits MIPS (microprocessor without interlocked pipelined stages) processor with the required instructions that used to calculate the LU matrices. The design implemented using VHDL (Very high speed integrated circuit hardware description language) then integrated with FPGA (Field Programmable Gate Arrays) Xilinx Spartan 6. The results for the different parts of the processor are resented in the form of test bench waveform and the architecture of the system is demonstrated and the results was matched with theoretical results.

scholarly journals FPGA-Based Controller for a Hybrid Grid-Connected PV/Wind/Battery Power System with AC Load

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2108
Author(s):  
Mohamed Yassine Allani ◽  
Jamel Riahi ◽  
Silvano Vergura ◽  
Abdelkader Mami
Keyword(s):  
Fuzzy Logic ◽  
Hybrid System ◽  
High Voltage ◽  
Field Programmable Gate Arrays ◽  
Energy System ◽  
Maximum Power ◽  
Hybrid Energy ◽  
Gate Arrays ◽  
Field Programmable ◽  
Programmable Gate Arrays

The development and optimization of a hybrid system composed of photovoltaic panels, wind turbines, converters, and batteries connected to the grid, is first presented. To generate the maximum power, two maximum power point tracker controllers based on fuzzy logic are required and a battery controller is used for the regulation of the DC voltage. When the power source varies, a high-voltage supply is incorporated (high gain DC-DC converter controlled by fuzzy logic) to boost the 24 V provided by the DC bus to the inverter voltage of about 400 V and to reduce energy losses to maximize the system performance. The inverter and the LCL filter allow for the integration of this hybrid system with AC loads and the grid. Moreover, a hardware solution for the field programmable gate arrays-based implementation of the controllers is proposed. The combination of these controllers was synthesized using the Integrated Synthesis Environment Design Suite software (Version: 14.7, City: Tunis, Country: Tunisia) and was successfully implemented on Field Programmable Gate Arrays Spartan 3E. The innovative design provides a suitable architecture based on power converters and control strategies that are dedicated to the proposed hybrid system to ensure system reliability. This implementation can provide a high level of flexibility that can facilitate the upgrade of a control system by simply updating or modifying the proposed algorithm running on the field programmable gate arrays board. The simulation results, using Matlab/Simulink (Version: 2016b, City: Tunis, Country: Tunisia, verify the efficiency of the proposed solution when the environmental conditions change. This study focused on the development and optimization of an electrical system control strategy to manage the produced energy and to coordinate the performance of the hybrid energy system. The paper proposes a combined photovoltaic and wind energy system, supported by a battery acting as an energy storage system. In addition, a bi-directional converter charges/discharges the battery, while a high-voltage gain converter connects them to the DC bus. The use of a battery is useful to compensate for the mismatch between the power demanded by the load and the power generated by the hybrid energy systems. The proposed field programmable gate arrays (FPGA)-based controllers ensure a fast time response by making control executable in real time.

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