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Date 9-10 Sept. 2009

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Displaying Results 1 - 25 of 74
  • [Front and back covers]

    Page(s): c1 - c4
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    Freely Available from IEEE
  • [Blank page]

    Page(s): 1 - 2
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    Freely Available from IEEE
  • [Title page]

    Page(s): iii - iv
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    Freely Available from IEEE
  • Preface

    Page(s): v
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    Freely Available from IEEE
  • Programme Committee

    Page(s): vi
    Save to Project icon | PDF file iconPDF (464 KB)  
    Freely Available from IEEE
  • Greetings from IEEE Region 8 Director

    Page(s): vii - viii
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    Freely Available from IEEE
  • Table of contents

    Page(s): ix - xiv
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    Freely Available from IEEE
  • netX - Network controller for automation

    Page(s): 1 - 2
    Save to Project icon | Request Permissions | PDF file iconPDF (102 KB)  
    Freely Available from IEEE
  • netX - Network controller for automation

    Page(s): 3 - 8
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (315 KB) |  | HTML iconHTML  

    The netX family of company Hilscher are highly integrated SoC with the system architecture based on ARM9 CPU, optimized for communication in industrial automation. It offers the migration strategy from field bus to Real-Time-Ethernet. Beside them, a couple of communication channels and peripherals are integrated on the chip. View full abstract»

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  • British Army battlefield radios of the 1940s [breaker page]

    Page(s): 9 - 10
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    Freely Available from IEEE
  • British Army battlefield radios of the 1940s

    Page(s): 11 - 16
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (2403 KB) |  | HTML iconHTML  

    The progress in British Army battlefield radios in the 1940s is outlined, with the aid of examples and photos of equipment used. This illustrates how technology advances supported operational improvements. View full abstract»

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  • [Blank page]

    Page(s): 17 - 18
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    Freely Available from IEEE
  • Analysis and design of a novel high efficiency converter for hybrid application

    Page(s): 19 - 24
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (269 KB) |  | HTML iconHTML  

    Ultracapacitors are electrochemical energy storage/conversion systems of high power applied in hybrid electric vehicles beside batteries. Since the voltage level of the DC bus differs from the ultracapacitor, it is necessary to utilize an interface circuit to balance (increase or decrease) the voltage between the DC bus and ultracapacitor. This paper presents a new buck-and-boost ultracapacitor interface circuit used between ultracapacitors and DC bus (batteries) in the hybrid electric vehicles. The operation of the proposed circuit is introduced and experimental results confirm the theoretical analysis. View full abstract»

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  • FPGA-implemented CRC algorithm

    Page(s): 25 - 29
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (265 KB) |  | HTML iconHTML  

    Generally speaking, cyclic redundancy checks (CRCs) are used to detect errors from noise in digital data transmission. The technique is also sometimes applied to data storage devices, such as a disk drive. They also have been turned to verify the integrity of files in a system in order to prevent tampering and suggested as a possible algorithm for manipulation detection codes. View full abstract»

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  • SPAlink: A flexible bitstream link for class S-Power Amplifiers

    Page(s): 31 - 36
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (376 KB) |  | HTML iconHTML  

    In this paper a multi-platform HDL description of a circuit that implements all the digital processing and RF carrier generation for the class S Power Amplifier proposed by the Institute of Microelectronics and Wireless Systems is presented. The circuit is the combination of a lowpass sigma-delta modulation stage in series with a frequency shifting stage that generates the bitstream that drives a switch mode amplifier followed by a bandpass filter. This HDL description is that it can be implemented not only on high-end FPGAs but on low-cost devices as well. The 8 parameters that define at compilation time the final implementation are presented and four implementations are discussed in this work. The design is validated with data measured in the simulation and in the prototype. View full abstract»

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  • Scalable 128-bit AES-CM crypto-core reconfigurable implementation for secure communications

    Page(s): 37 - 42
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (260 KB) |  | HTML iconHTML  

    A novel cryptographic core (cryptocore) approach for secure communications is presented in this work. It is an AES-Counter Mode core for System-on-Programmable-Devices that takes advantage from the flexibility of the reconfigurable devices. The proposed architecture is parameterizable, so it is easily scalable to fulfill different target area-speed trade-offs. This parametrization affects both the number of AES cipher block processors running in parallel and the implementation type. The crypto-core supports three AES cipher blocks implementations publicly available. The proposed architecture is analyzed with experimental results that show how the crypto-core eases and optimizes the secure communications implementation in different systems. View full abstract»

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  • Designing a 20GHz mode locked semiconductor laser by using coupled resonator optical waveguides

    Page(s): 181 - 185
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (421 KB) |  | HTML iconHTML  

    Mode-locking and related forms of mode coupling in lasers provides important techniques for generating ultra short light pulses and other useful forms of periodically modulated lasers. On the other hand photonic crystal waveguides, provide unique properties that are not available in conventional TIR (total internal reflection) waveguides. Specially we know that in these waveguides the group velocity of the light can be drastically reduced due to strong Bragg diffraction, and according to this fact, we design a photonic crystal mode locked laser structure, incorporating coupled resonator waveguides which is much more smaller than conventional mode locked lasers. View full abstract»

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  • Modelling of the power part of excitation systems, synchronous generator, transformer and line in real time

    Page(s): 43 - 46
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (448 KB) |  | HTML iconHTML  

    A model for excitation system testing is presented. An excitation system is primary control of the synchronous generator which feeds field current into the field winding of the generator. Right function of the excitation systems is necessary for the conversion of the turbine mechanical power supplied to the generator shaft into generator electrical power. The model described in the article is a device which has same values on its inputs and outputs as the inputs and outputs of the measuring part of the excitation system and generator. View full abstract»

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  • Simplified model of a photovoltaic module

    Page(s): 47 - 51
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (244 KB) |  | HTML iconHTML  

    The cost and the performance of PV plants strongly depends on modules. However, the electrical parameters of the modules can be different from those provided by the manufacturer; moreover, such parameters can change as the module is getting older. Therefore, the behavior of the mathematical model of a PV module can-t match the real operating conditions. The paper proposes an improved model of a PV module that make use only parameters provided by manufacturers datasheets without requiring the use of any numerical methods. In the paper after the detailed description of the proposed model, different simulation results are pointed out. Finally a suitable procedure that permits to account the real operating parameters in the PV model and an experimental validation is presented. View full abstract»

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  • Direct trolley-wire current control of traction voltage-source active rectifier

    Page(s): 53 - 56
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (567 KB) |  | HTML iconHTML  

    This paper introduces control of single-phase voltage-source active rectifier with direct control of trolley-wire current and presents simulation and experimental results of designed low-voltage laboratory prototype of traction converter. The proposed control strategy combines PR controller with predictive model for trolley-wire current control loop. View full abstract»

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  • Microcomputer control system for industrial electronics applications

    Page(s): 57 - 60
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (570 KB) |  | HTML iconHTML  

    The paper describes a microcomputer control system which uses commonly affordable development kit with digital signal processor TMS320F28335 from Texas Instruments. The rest part of the DSP system completes additional interfaces which enable greatly easy use and expansion peripheral circuits of the basic kit. The system was designed not only for industrial electronics applications, for example electrical drives, power semiconductor converter, controllers etc., but also for digital signal processing applications or teaching at the technical university. Some practical experiences with DSP system are described at the end of the paper. View full abstract»

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  • Facilities for a digital signals processing of AC drives

    Page(s): 61 - 64
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (244 KB) |  | HTML iconHTML  

    The electric controlled drives are necessary part of different technologies and manufacturing processes and are essential parts of industry, nowadays as so in the past. This causes that drives modernization is necessary in many cases. The paper is focused on necessary parts and support devices, which together with AC machine, inverter and control system enable to use field oriented control methods of AC machines in various operation modes. The paper contains description of driving blocks. These blocks are used by control system, signal adaptation electronics and some other regulation supporting devices. All these facilities are continually improved and modernized at the department laboratories. View full abstract»

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  • Motorbike acceleration improving using hybrid engine

    Page(s): 65 - 68
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (572 KB) |  | HTML iconHTML  

    The paper presents the possibility of acceleration of two-stroke combustion engine used in motorcycle. This paper deals with the method of charging and discharging electric energy main sources, mechanical to electrical energy conversion and vice versa. Basic conception comes out of combustion engine and microprocessor controlled electromotor cooperation. The braking energy charges supercapacitors, and is used when acceleration is needed. View full abstract»

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  • Evolutionary FIR filter

    Page(s): 69 - 72
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (257 KB) |  | HTML iconHTML  

    This paper deals with the design of the FIR filter whose parameters are obtained using an evolutionary algorithm. It explores usage problems of evolutionary algorithms in adaptive devices domain, then discusses implementation of the adaptive FIR filter prototype based on the standard genetic algorithm realized by FPGA circuit, and continues by discussion of advantages and disadvantages of such an implementation. View full abstract»

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  • Laboratory performance comparison of IEEE 802.11 b, g point-to-point links: a case study

    Page(s): 73 - 78
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (1701 KB) |  | HTML iconHTML  

    The importance of wireless communications, involving electronic devices, has been growing. Performance is a very important issue. Laboratory measurements are made about several performance aspects of Wi-Fi IEEE 802.11 b, g point-to-point links. A contribution is given to performance evaluation of this technology, using two types of access points from Enterasys Networks (RBTR2 and RBT-4102), and wireless routers from Linksys (WRT54GL). Detailed results are presented and discussed, namely at OSI levels 4 and 7, from TCP, UDP and FTP experiments: TCP throughput, jitter, percentage datagram loss and FTP transfer rate.Laboratory View full abstract»

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