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Ultrasound brain stimulation technology is a new method of brain stimulation which developed in recent years, with no damage, high spatial resolution, penetrating and so on, however, it is possible to lack of stimulate strength and not achieve the purpose of stimulation. For this, we design the driving circuit for ultrasonic brain stimulation based on FPGA in this paper, the system can drive multi-center...
To investigate novel engine and fuel designs for greener aviation, instrumentation is required that can spatially and temporally resolve gas concentrations within aero-engine exhausts. This paper presents work towards a parallel, high-speed, distributed data acquisition (DAQ) system that employs in-situ demodulation of tunable diode laser absorption spectroscopy (TDLAS) signals. We briefly describe...
Image is a visual representation of object, or a scene which can be seen by human eyes. Image can be created and stored in electronic form. Image is a two dimensional function f(x, y) where, x and y are spatial co-ordinates and amplitude of images is defined in intensity level of each pixel. Image fusion means merging relevant information from different images to create one new image which is more...
Today the most interesting research topic in theoretical point of view is Residue Number System (RNS). Its significance originates from the lack of carry propagation between its arithmetic units. To implement any modular process, the important step is the conversion from a residue number system (RNS) to binary. In modern telecommunication system and multimedia applications, the use of RNS increases...
This work presents a demonstrator for safety-critical applications based on a low-cost FPGA platform. The main goal of the demonstrator is to show the features and benefits of a fault-injection tool for FPGAs called FIJI (Fault Injection Instrumenter) that was developed by the authors of this paper. Besides, the demonstrator should illustrate typical sources of hardware/software faults as well as...
Modular multilevel converters (MMC) have been at the heart of numerous research projects and publications over the last decade. This topology is particularly challenging when it comes to real-time simulation; it has thousands of power-switching devices, control signals, and differential equations to solve. This has led to various models with different levels of detail. Although, all models are equally...
Most learners are introduced to academic papers in their graduate work. Typically, most of us learn to read and understand these papers by reading many of them and listening to more senior colleagues and teachers describe and interpret these papers in the class or reading groups. As our experience grows we become better at this skill. There is a need to read papers in a particular research area to...
The purpose of this article is to study the dynamic reconfiguration in FPAA and, because of its potential, its academic applications. State driven and algorithmic reconfiguration methods have been considered during this work. Since these devices are not as well-known as FPGA, it is interesting to study its characteristics and abilities. The algorithmic method has been developed, obtaining conclusions...
During the last few years, there has been a rise in the use of nanosatellites because they offer a low cost and short development time alternative to larger satellites intended for long-duration missions. The use of commercial components (COTS) instead of the expensive space-grade components required for long missions is one of the main reasons of the popularity of the nanosatellites. This paper presents...
Phase-locked loops (PLLs) are doubtless the most popular synchronization technique in the power converters. Almost all proposed PLL structures known in literature are inherently nonlinear and can be linearized as second order linear time invariant system. Nonlinear nature of PLLs degrades their performances, and question arises if there exist an enhanced PLL structure that would have superior performances...
This paper presents the design for a prototype tactical dynamic spectrum access (DSA) mobile ad hoc network, where the network is organized into clusters operating on a single frequency. The frequency may be changed autonomously by the network in response to jamming or interference, after some frequency switching delay. The network node design is implementable on a software defined radio (SDR), such...
This paper describes and verifies a method of implementing bit error rate (BER) calculation for FPGA-based physical layer security techniques for Software Defined Radio (SDR). Specifically, we describe an independent source signal processing architecture for an efficient calculation of BER for wireless communication modules across the transmitter and receiver nodes. The source components at the transmitter...
All new Microsoft Azure and Bing servers are being deployed with an FPGA that sits both between the server and the data center network and on the PCIe bus. The FPGA is currently being used to accelerate networking on Azure machines and search on Bing machines, but could very quickly and easily be retargeted to other uses as needed. In this talk, I will describe how we decided on this architecture,...
Post Silicon Validation is critical step in order to deliver quality microcontroller chips to customers but is increasingly becoming complex and time consuming process as the design size is increasing. Due to increased number & diversity of design intellectual property, microcontroller post silicon validation has moved towards customized validation concept and hardware setup for individual design...
In this paper, we describe a new teaching approach whose objective is to implement entrepreneurship-based learning. The proposed teaching approach is essentially a project-based approach, but, with two novel key components that give it the entrepreneurship emphasis. First, the main idea is to divide students into groups of four or five members and have each team go through the process of starting-up...
This paper presents a high-resolution near-field magnetic sensing system for nondestructive inspection applications of safety and security. The system includes a probe chip based on a 0.18-μm 5-metal-layer CMOS process technology and a micro-position calibration mechanism. The probe chip includes a magnetic pick-up coil followed by a 3-stage low-noise amplifier to amplify the induced voltage on the...
Efficient and robust wireless video delivery is an enabling technology for various applications. The existing wireless video transmission scheme has the cliff effect and it cann't gracefully adapt to channel variations. In this paper, we introduce a pseudo-analog wireless video transmission improvements and design in the hardware. Comparing with the traditional transmission, the linear processing...
Cyber-Physical Systems (CPS) are composed of computation, networking, and physical processes. Model-based design is a powerful technique to apply mathematical modeling in CPS design. A model of a physical system is the description of variations in some aspects and properties of the system such as motion, velocity, and pressure. The variations of physical quantities such as motion, velocity, and pressure...
Traditional processor design approaches using CISC and RISC philosophies suffer from low performance. One of alternative approaches to improve system performance is instruction level parallelism (ILP). Among the processor architectures supporting ILP, very long instruction word (VLIW) processors offer some advantages such as low power consumption and hardware complexity. In this paper, we introduce...
With the progress of science and technology, the digital receiver has been widely used in communication, radar, navigation system, electronic warfare system and enemy identification system. A new design of digital transceiver unit is proposed: A new method of signal synthesis and the use of cascading Invsinc filter and CIC filter in digital down conversion to achieve decimation and deceleration; can...
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