ICECS 2001. 8th IEEE International Conference on Electronics, Circuits and Systems (Cat. No.01EX483)

2-5 Sept. 2001

Go

Filter Results

Displaying Results 1 - 25 of 128
  • ICECS 2001. 8th IEEE International Conference on Electronics, Circuits and Systems (Cat. No.01EX483)

    Publication Year: 2001
    Request permission for commercial reuse | PDF file iconPDF (1683 KB)
    Freely Available from IEEE
  • A new approach for mobile manipulator motion control

    Publication Year: 2001, Page(s):1203 - 1207 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (345 KB) | HTML iconHTML

    In this paper a new approach for motion control of a mobile manipulator is presented. On the basis of the task specifications, the algorithm determines the appropriate control variables to respond to the well tracking trajectory. The control strategy employed for either subsystem is achieved by using a robust fuzzy-based controllers. The dynamic model is considered for the robot manipulator wherea... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An ultra high-speed compressor for packet networks

    Publication Year: 2001, Page(s):1259 - 1263 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (435 KB) | HTML iconHTML

    A main characteristic of the widely used packet networks is that its switches/routers should be fairly simple and inexpensive. As a result, a significant part of the network cost is in the cost of the links. So by increasing the network traffic we can send over a given link, we will certainly increase the effectiveness of the whole network. A way of increasing this traffic is to send compressed pa... View full abstract»

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

    Publication Year: 2001, Page(s):1643 - 1653
    Request permission for commercial reuse | PDF file iconPDF (533 KB)
    Freely Available from IEEE
  • Using a hardware coprocessor for message scheduling in fieldbus-based distributed systems

    Publication Year: 2001, Page(s):1485 - 1490 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB) | HTML iconHTML

    Fieldbus based distributed embedded systems used in real-time applications tend to be inflexible in what concerns changing operational parameters on-line. Recent techniques such as the planning scheduler can avoid this problem but do not show adequate responsiveness for automatic negotiation of parameter values. In this paper the use of ASIC based coprocessors for message scheduling is proposed to... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • FPGA based on-line complex-number multipliers

    Publication Year: 2001, Page(s):1481 - 1484 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB) | HTML iconHTML

    This paper proposes two topologies of radix-2 complex-number multipliers based on distributed arithmetic and the redundant signed-digit representation. The advantage of this approach is twofold: the distributed arithmetic reduces the hardware requirements respect to direct implementation of the complex-number multiplication, and the redundant number system avoids the carry-propagation and allows c... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • New natural selection process and chromosome encoding for the design of multiplierless lattice QMF using genetic algorithm

    Publication Year: 2001, Page(s):1273 - 1276 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB) | HTML iconHTML

    A new natural selection process and chromosome encoding for the design of signed power-of-two (SPT) coefficient lattice structure quadrature mirror filter (QMF) bank using a genetic algorithm (GA) is presented. In the design of filters using genetic algorithms, in general, genetic operations may render the SPT representation of a value noncanonical. In this paper, a new encoding scheme is introduc... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Signal detection and processing of seismic electromagnetic radiation in ELF band

    Publication Year: 2001, Page(s):1477 - 1480 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB) | HTML iconHTML

    In this paper, a new signal processing method appropriate for detecting electromagnetic radiation due to the earthquake activities was proposed. The radiation is usually accompanied by background noises, mainly caused by atmospheric discharges in the tropical regions. A full-band differentiating filter was applied for the received data as a preprocessing. The good performance was obtained to detec... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Adaptive filtering of cyclostationary interference from speech

    Publication Year: 2001, Page(s):1175 - 1178 vol.3
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB) | HTML iconHTML

    In this paper we propose a new time domain method for separating a periodic interference signal component from speech signal. The method handles also such cases in which the amplitude of a periodic interfering signal fluctuates and when the speech signal occasionally is located in the same frequency band as the interfering signal. The method is applied with success to the filtering of electromagne... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A new mobility model for pocket implanted quarter micron n-MOSFETs and below

    Publication Year: 2001, Page(s):1587 - 1590 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB) | HTML iconHTML

    A new, analytical, physically-based effective surface mobility model valid in all regimes of device operation from weak to strong inversion is introduced. The model accounts for all relevant scattering processes vs. the electric field and temperature as well as for the lateral nonuniform 2D doping profile in pocket implanted MOSFETs. Measurements show that the mobility degradation due to Coulomb s... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The bifurcation structure of fractional-harmonic entrainments in the forced Rayleigh oscillator

    Publication Year: 2001, Page(s):1269 - 1272 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB) | HTML iconHTML

    The bifurcation structure of fractional harmonic entrainments in the forced Rayleigh oscillator is studied. In each fractional harmonic entrainment, complex bifurcation occurs when the saddle node bifurcation curve, which forms fractional harmonic entrainments, approaches the Neimark-Sacker bifurcation curve which follows the fundamental harmonic entrainment. Two types of fractional harmonic entra... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Low voltage log domain front end for the extraction of 2-D sound localization cues

    Publication Year: 2001, Page(s):1473 - 1476 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB) | HTML iconHTML

    This paper proposes a novel current-mode front end for the extraction of localization spectral cues from two audio signals. A current mode log domain implementation via subthreshold MOS operation is used for micropower operation while still achieving a good bandwidth. In addition, log domain processing results in good linearity. A current mode solution is also preferred because of the ease of impl... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Rapid prototyping of biorthogonal discrete wavelet transforms on FPGAs

    Publication Year: 2001, Page(s):1399 - 1402 vol.3
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB) | HTML iconHTML

    The purpose of this paper is to present a methodology for rapid prototyping of biorthogonal wavelet transforms on FPGAs. The methodology is based on adequate partitioning of a time interleaved "wait cycles" free architecture. The design has been captured using a schematic capture tools and can be parameterised in terms of the number of filter coefficients, data and coefficient word-lengths, digit ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On the feasibility of fT-integration employing reverse-active vertical npn's

    Publication Year: 2001, Page(s):1131 - 1134 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB) | HTML iconHTML

    The fT-integration technique is further investigated through the use of vertical n-p-n transistors operating in a so-called reverse-active mode for frequency tuning range extension. The usual DC-gain enhancement scheme can be deployed to compensate the associated low reverse current gain of such reverse-active devices with no degradation in linearity. An integrator using only reverse-ac... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Low-voltage CMOS current operational amplifier with class AB input stage

    Publication Year: 2001, Page(s):1525 - 1528 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB) | HTML iconHTML

    A CMOS current operational amplifier (COA) which can be operated from a minimum supply voltage of VT+3VDS,SAT is presented. Unlike previous low-voltage solutions operating in class A, the proposed one employs a class AB input stage that enhances slew-rate performance and provides accurate control of both quiescent currents and input bias voltage. A design example is implement... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A selective compression algorithm for SAR images based on irregular and adaptive sampling

    Publication Year: 2001, Page(s):1171 - 1174 vol.3
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB) | HTML iconHTML

    Deals with the topic of selective compression of SAR images. A novel algorithm based on the use of irregular and adaptive sampling is presented: good compression ratios can be achieved selecting the regions of interest (ROI) within the image in order to represent them with an adequate set of samples, while the textured or uniform background is roughly sampled. The method presented has been tested ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On area-efficient low power array multipliers

    Publication Year: 2001, Page(s):1429 - 1432 vol.3
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB) | HTML iconHTML

    Multiplication is one of the most critical operations in many computational systems. In this paper, we present an improved architecture for a multiplexer-based multiplication algorithm. Also through intensive HSPICE simulation, it has been shown in this paper that due to smaller internal capacitance, the multiplexer-based array multiplier outperforms the modified Booth multiplier in both speed and... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Combinational verification by simulations, SAT and BDDs

    Publication Year: 2001, Page(s):1627 - 1630 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB) | HTML iconHTML

    In this paper, we consider verification of combinational circuits by test vector simulations. The simulation-based verification under the presence of a fault model uses test pattern generation approach. We show that the test vector generation can be enhanced by techniques used in formal verifications: satisfiability (SAT)- and BDD-based solutions can be combined with the vector simulations. Our me... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A moment method analysis of SAW interaction in periodic metal-semiconductor structure

    Publication Year: 2001, Page(s):1583 - 1586 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB) | HTML iconHTML

    In this paper, the moment method technique is formulated to carry out a full wave analysis of a periodic metal strip on thin film semiconductor. A number of basis and testing functions verifying the electric field boundary conditions are assumed for the solution. The solution gives the electric field distribution as well as the potential and charge distribution. The surface impedance can be calcul... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Bipartite graph labeling for the subcircuit recognition problem

    Publication Year: 2001, Page(s):1285 - 1288 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB) | HTML iconHTML

    Subcircuit recognition (SR) is a problem of recognition of a small model bipartite graph (BG) associated with a subcircuit in a larger object BG associated with a circuit. The performance of the SR methods strongly depends on labeling both the BGs. Unfortunately, known labeling algorithms possess weak discriminative abilities since in forming labels they exploit the structure of local vertex conne... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Block turbo codes: towards implementation

    Publication Year: 2001, Page(s):1219 - 1222 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB) | HTML iconHTML

    This paper presents two implementations of the same block turbo decoding algorithm: on the one hand an elementary decoder in association with a sequencer performs the complete turbo decoding process, and on the other hand, the circuit contains one elementary decoder per half-iteration. The choice of different parameters for each algorithm implemented bring the results more or less close to the the... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Perturbation methods for canceling interference in CDMA systems

    Publication Year: 2001, Page(s):1143 - 1146 vol.3
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (192 KB) | HTML iconHTML

    Based on perturbation theory, formulas for multi-user detection in CDMA systems are derived. Starting from the single user detection and applying iterative perturbations to correct for interference, we obtain better linear combination amplitudes for codes of the multi-user waveform and hence, lower bit error rate (BER). The amount of computation is much reduced by calculating the interference in f... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A proof of the non-existence of universal nonlinearities for blind signal separation

    Publication Year: 2001, Page(s):1265 - 1268 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB) | HTML iconHTML

    The universally applicable nonlinearity for the blind separation of arbitrary source densities is one of the ultimate goals in blind signal processing. This paper provides a proof that such a single, universal nonlinearity for the separation of all non-Gaussian signals cannot exist View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The mechanical and control system design of a dexterous robotic gripper

    Publication Year: 2001, Page(s):1195 - 1201 vol.3
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (672 KB) | HTML iconHTML

    The design and development of dexterous robotic end effectors has been an active research area for a long while. This paper reviews the design and construction of a versatile robotic gripper used to grasp objects of arbitrary shape, size and weight. This is achieved through a mechanical design that incorporates multiple fingers and multiple joints per finger, through the installation of proximity ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On algorithm for phoneme speech recognition using nonlinear signal decomposition

    Publication Year: 2001, Page(s):1251 - 1254 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB) | HTML iconHTML

    Nonlinear speech signal decomposition based on Volterra-Wiener functional series is described. A possible solution of phoneme recognition problem by means of measuring Wiener kernels is proposed View full abstract»

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