2008 2nd International Conference on Signals, Circuits and Systems

7-9 Nov. 2008

Filter Results

Displaying Results 1 - 25 of 108
  • [Title page]

    Publication Year: 2008, Page(s): 1
    Request permission for commercial reuse | PDF file iconPDF (1229 KB)
    Freely Available from IEEE
  • Welcome to the IEEE SCS’08 Conference

    Publication Year: 2008, Page(s): 1
    Request permission for commercial reuse | PDF file iconPDF (412 KB)
    Freely Available from IEEE
  • Committees

    Publication Year: 2008, Page(s): 1
    Request permission for commercial reuse | PDF file iconPDF (204 KB)
    Freely Available from IEEE
  • Program Committee Members

    Publication Year: 2008, Page(s): 1
    Request permission for commercial reuse | PDF file iconPDF (278 KB)
    Freely Available from IEEE
  • IEEE SCS’08 technical program

    Publication Year: 2008, Page(s):1 - 11
    Request permission for commercial reuse | PDF file iconPDF (126 KB)
    Freely Available from IEEE
  • Author index

    Publication Year: 2008, Page(s):1 - 3
    Request permission for commercial reuse | PDF file iconPDF (3955 KB)
    Freely Available from IEEE
  • Design and test of integrated circuits in nano era: What is next?

    Publication Year: 2008, Page(s): 1
    Request permission for commercial reuse | PDF file iconPDF (30 KB)
    Freely Available from IEEE
  • Nanotechnology: The power of small

    Publication Year: 2008, Page(s): 1
    Request permission for commercial reuse | PDF file iconPDF (38 KB) | HTML iconHTML
    Freely Available from IEEE
  • Capacity performances of Space-Time Beamformers for space-time arrayed VIVO DS-CDMA system

    Publication Year: 2008, Page(s):1 - 5
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (147 KB) | HTML iconHTML

    Multi-users system technology, array processing and space-time beamforming are recent methods invented for wireless communication schemes. An arrayed vector-input, vector-output (VIVO)DS-CDMA system is treated in this paper. We treat in particular the capacity of multi-users detectors using beamforming technology. At this stage, a new mathematical formulation in terms of capacity for various space... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Wearable authentication device for transparent login in nomadic applications environment

    Publication Year: 2008, Page(s):1 - 6
    Cited by:  Papers (5)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (466 KB) | HTML iconHTML

    This paper describes a wearable authentication device for continuous user authentication and transparent login procedure in nomadic applications environment, where users are mobile and current authentication methods are not applicable. The wearable authentication device is a wristband in which the user authentication is done by using the fingerprint and to ensure that the person is wearing the dev... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Analysis of an EBG filter using an iterative method

    Publication Year: 2008, Page(s):1 - 4
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (130 KB) | HTML iconHTML

    In this paper, we present an iterative method for analyzing electromagnetic band gap structures based on periodic via holes array. The method is based on wave concept using an iterative way with FFT algorithm. The operator of reflection in spectral domain is determined using the impedance of the via hole. The simulationpsilas result found and compared with a bibliographic reference is encouraging. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Convex optimization and MIMO RADAR waveform design in the presence of clutter

    Publication Year: 2008, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (242 KB) | HTML iconHTML

    Waveform design for target identification and classification in MIMO radar systems has been studied in several recent works. While the previous works considered signal independent noise and found optimal signals for an estimation algorithm, here we extend the results to the case where clutter is also present and then we will find the optimum waveform for several estimators differing in the assumpt... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Optimal signals for MIMO RADAR in the presence of clutter

    Publication Year: 2008, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (149 KB) | HTML iconHTML

    Waveform design for target identification and classification in MIMO radar systems has been studied in several recent works. While the previous works considered signal independent noise and found optimal signals, here we extend the results to the case where clutter is also present and then we will find the optimum waveform for MMSE estimator. Choosing optimal waveform for MMSE estimator leads to t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A methodology for parabolic synthesis of unary functions for hardware implementation

    Publication Year: 2008, Page(s):1 - 6
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (121 KB) | HTML iconHTML

    This paper introduces a parabolic synthesis methodology for developing approximations of unary functions like trigonometric functions and logarithms which are specialized for efficient hardware mapped VLSI design. The advantages with the methodology are, short critical path, fast computation and high throughput enabled by a high degree of architectural parallelism. The feasibility of the methodolo... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Anti pain stimulator using FPGA circuit

    Publication Year: 2008, Page(s):1 - 5
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (202 KB) | HTML iconHTML

    The Transcutaneous Electrical Nerve Stimulator (T.E.N.S.) is a medical device which is used to decrease or to block the intensity of the pain. Its working consists in helping the patient to produce a higher rate of substance secreted by the brain to block the pain. The stimulator is very much used by the hospitals specialized services in physiotherapy. The scientific and technological objectives o... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Evaluation of several reconstruction methods of bandlimited signals

    Publication Year: 2008, Page(s):1 - 5
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (154 KB) | HTML iconHTML

    In this paper we evaluate several methods of reconstructing signals from finite sets of their samples. A class of band-limited signals is considered. Both, noise-free and noisy cases are studied. The evaluation is performed by extensive simulations where different shapes and bandwidths of the reconstructing filters are examined. We demonstrate that if a fixed number of signal samples are used in t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • DS-CDMA receiver using switched-capacitor analog correlator circuit for parallel processing system LSIs

    Publication Year: 2008, Page(s):1 - 4
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (227 KB) | HTML iconHTML

    A switched-capacitor analog correlator using balanced charge pump circuit, capable of pumping same amount of charge in positive and negative direction is proposed for code division multiple access (CDMA) bus interface. In addition, the amount of charge injection is independent of the output voltage. The proposed charge pump circuit is applied to the analog correlator in the receiver module of CDMA... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A method for estimating the parameters of the K-distribution using a nonlinear network based on fuzzy system and neural networks

    Publication Year: 2008, Page(s):1 - 6
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (131 KB) | HTML iconHTML

    This paper investigates a new technique for estimating the shape parameter of a K-distribution based on fuzzy neural network (FNN). In order to improve the estimation accuracy with inexpensive computational requirement, the FNN estimator is used to accurate the solutions of the nonlinear equations and the inverse functions (gk(nucirc))of the Raghavanpsilas and ML/MOM (Maximum-Likelihood... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Investigation of harmonic radiation control of active patch antennas

    Publication Year: 2008, Page(s):1 - 3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (87 KB) | HTML iconHTML

    A shaping technique for the radiator of an active patch antenna is described, and shown experimentally to reduce harmonic radiation and therefore enhance the conversion efficiency. The perturbation of resonant mode frequencies in a deformed rectangular patch radiator is discussed as a possible basis for systematic design. Field simulation software (SONNET) was also used to further study and confir... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Analysis of rectangular microstrip antenna using high temperature superconducting (HTS) patch

    Publication Year: 2008, Page(s):1 - 4
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (102 KB) | HTML iconHTML

    In this paper, the complex resonant frequency problem of a superconductor patch is formulated in terms of an integral equation which is the kernel of a dyadic Green's function. To include the effect of the superconductivity of the microstrip patch, the surface complex impedance of the superconductor film is introduced using the two fluids model of Gorter and Casimir. Galerkin procedure is used in ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Influence of antenna parameters on the radiation of a rectangular microstrip patch antenna

    Publication Year: 2008, Page(s):1 - 5
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (153 KB) | HTML iconHTML

    This paper present a rigorous analysis of rectangular microstrip patch over ground planes with substrates isotropic is presented. The dyadic Greenpsilas functions of the problem are efficiently determined in the vector Fourier transform domain. The integral equation for the unknown patch current and field are solved numerically by applying the Galerkin method of moments. The TM set of modes issued... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A secure Elliptic Curve Digital Signature scheme for embedded devices

    Publication Year: 2008, Page(s):1 - 6
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (128 KB) | HTML iconHTML

    Random numbers are fundamental to all aspects of data security. The strength of a security mechanism is directly proportional to the randomness of the numbers it uses. These numbers are provided by special algorithms called random number generators (RNG). This paper describes a novel security approach on authentification schemes as a modification of ECDSA scheme. The modification is done by adding... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Mutual coupling in phased arrays for 3×4 Butler Matrices antenna network

    Publication Year: 2008, Page(s):1 - 5
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (136 KB) | HTML iconHTML

    This paper presents the effects of mutual coupling between the elements of an array, Mutual coupling between antenna elements can distort array pattern and increase reflected power to antenna feed system, To examine these effects in microstrip antenna arrays with 3times4 Butler matrix, prototypes of multilayer slot coupled and the Butler matrix were simulated. Furthermore, a four-antenna array was... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Peformance evaluation of fuzzy controller for traffic stabilization

    Publication Year: 2008, Page(s):1 - 5
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (154 KB) | HTML iconHTML

    This paper proposes a useful algorithm approach to hybrid control systems combining fuzzy logic and predictable control techniques for network infrastructure. The given model employs two rules to Fuzzy logic rate prevention based on queue length and buffer frequency. The learning rule for this network must then be modified accordingly. The implementation of the fuzzy model was carried out in simul... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Improved vortex flow meter using pre-filter

    Publication Year: 2008, Page(s):1 - 5
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (920 KB) | HTML iconHTML

    The frequency of the vortex formation in a flow meter can be measured using a piezoelectric sensor. The piezoelectric sensor produces a raw signal, where the average frequency indicates volumetric flow rate. This sensor signal contains more information than just the frequency of vortex. The objective of this research is to optimize a typical flow meter with a measurement range of 0.5-4.5 l/min and... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.