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Signal Processing Proceedings, 2000. WCCC-ICSP 2000. 5th International Conference on

Date 21-25 Aug. 2000

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  • 2000 5th international conference signal processing proceedings

    Publication Year: 2000, Page(s):0_2 - 31
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    Freely Available from IEEE
  • Author index

    Publication Year: 2000, Page(s):1 - 9
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    Freely Available from IEEE
  • Fusing conventional ECG QRS detection algorithms with an auto-associative neural network for the detection of ectopic beats

    Publication Year: 2000, Page(s):1623 - 1628 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    The onset of a potentially fatal arrhythmia is often preceded by abnormal morphologies in the QRS complex, the main feature in the electrocardiogram. However, these ectopic beats are difficult to detect as their shape is very similar to those found in a normal sinus rhythm. We show how an auto-associative multi-layer perceptron can be trained to detect normal beats only, so that the subtle abnorma... View full abstract»

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  • Blind uplink channel estimation and multiuser detection for wideband CDMA

    Publication Year: 2000, Page(s):1798 - 1801 vol.3
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    In wideband CDMA systems, the information symbols transmit with high rate. However, the multiple propagation paths can cause both multiple access interference (MAI) and intersymbol interference (ISI). The MAI and ISI must be considered simultaneously. In this paper, under the condition of known spreading code and the finite alphabet, a blind channel estimation method is proposed for wideband CDMA ... View full abstract»

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  • A millimeter-wave broadband radar signal simulator

    Publication Year: 2000, Page(s):1938 - 1942 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (292 KB)

    The characteristics of the echo of millimeter-wave broadband down-looking radar are analyzed. The architecture of multiple radar signal simulators are compared. The realization method of a radar signal simulator that uses PCs DMA is advanced. A millimeter-wave broadband downlooking radar signal simulator that adopting the above method has been realized. The key issues of hardware and software impl... View full abstract»

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  • Language model of Chinese character recognition and its application

    Publication Year: 2000, Page(s):1507 - 1513 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (452 KB)

    This paper presents a 5-gram combined model that can reflect features of Chinese and Chinese character recognition based on introducing several kinds of Markov language models. The major feature of this model is that it captures both forward and backward statistical characters of one word. The model contains three traditional “trigram components”, a “cache component” which ... View full abstract»

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  • Target location and speed estimation by multistatic radar system using maximum likelihood approach

    Publication Year: 2000, Page(s):1964 - 1967 vol.3
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (260 KB)

    This paper describes a short range target location and speed estimation using the maximum likelihood method based on the range difference information of a T-R multistatic radar system transmitting a new grouped waveform of FMCW signal and single carrier pulse. Formulae are derived independent of transmitter position. Performances are simulated with the proposed algorithm and results are given for ... View full abstract»

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  • A neural network based factorization model for polynomials in several elements

    Publication Year: 2000, Page(s):1617 - 1622 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    This paper proposes a new neural network based factorization model, which can perform factorization on polynomials in several elements using a one-layered linear neural network model extended by a difference-product unit. This model is of properties easily trained and simply structured. However, the numbers of the input nodes and the output nodes of the designed networks based on this model depend... View full abstract»

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  • A fast codebook design algorithm for vector quantization

    Publication Year: 2000, Page(s):2004 - 2007 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (284 KB)

    This paper presents a fast codebook design algorithm for vector quantization, which eliminates distortion calculations by using inequality between the distortion and the means of two vectors as well as the partial distortion theorem during both the initial codebook splitting and LBG iteration procedures. Moreover, the partition information of vectors in the previous iteration is used in the repart... View full abstract»

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  • Subspace tracking based blind multiuser detection: a MMSE estimation approach

    Publication Year: 2000, Page(s):1794 - 1797 vol.3
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    A blind multiuser detection scheme based on the signal subspace tracking technique is proposed. Different from some other blind detection schemes, we study the blind detection problem from the perspective of user's parameter estimation in the signal subspace. By using efficient subspace tracking algorithms, this scheme offers better performance and lower computational complexity. Simulation exampl... View full abstract»

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  • Exponential stability of delayed bi-directional associative memory networks

    Publication Year: 2000, Page(s):1730 - 1734 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    Some sufficient conditions are derived for the global exponential stability in delayed bi-directional associative memory (BAM) networks by constructing a suitable Lyapunov functional and the inequality 2ab⩽a 2+b2 technique. These conditions have an important leading significance in the design and applications of globally exponentially stable neural circuits for delayed BA... View full abstract»

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  • A modified genetic algorithm-algorithm description

    Publication Year: 2000, Page(s):1667 - 1670 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (276 KB)

    Based on the analyses of the limitation of a common genetic algorithm and the model of the structure and development of human society, the paper discusses a modified genetic algorithm. The algorithm applies unidirectional inheritance and hierarchical structure to solve the optimizing problems. This method can not only reserve the useful genetic information, but also make the succeeding inheritance... View full abstract»

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  • An approach of radar clutter recognition based on higher-order statistics combination

    Publication Year: 2000, Page(s):1933 - 1937 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (220 KB)

    Radar clutter recognition is very useful for optimizing the processing and detection strategy of modern radar signal processing system to improve the performance of the processing system even the whole radar system to the maximum. A new radar clutter recognition approach based on higher-order statistics combination (HOSC) and its modification called weighed HOSC is presented, it can not only class... View full abstract»

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  • Neural networks for classification of 2-D patterns

    Publication Year: 2000, Page(s):1568 - 1571 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB)

    The paper presents the application of three different types of neural networks to the 2D pattern recognition on the basis of its shape. They include the multilayer perceptron (MLP), Kohonen self-organizing network and hybrid structure composed of the self-organizing layer and the MLP subnetwork connected in cascade. The recognition is based on the features extracted from the Fourier transform of t... View full abstract»

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  • Automatic modulation classification using statistical moments and a fuzzy classifier

    Publication Year: 2000, Page(s):1500 - 1506 vol.3
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    This paper presents a new digital modulation recognition algorithm for classifying baseband signals in the presence of additive white Gaussian noise. An elaborated classification technique uses various statistical moments of the signal amplitude, phase, and frequency applied to the fuzzy classifier. Classification results are given and it is found that the technique performs well at low SNR. Benef... View full abstract»

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  • A DSP innovated converter of speech rate for hearing impaired patients

    Publication Year: 2000, Page(s):2016 - 2021 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    This paper proposes a real-time band-size portable device which slows speech speed, enhances clarity and optimizes pitch for hearing impaired people. A simplified pitch synchronous, time scale modification algorithm is proposed to minimize the complexity of DSP operations involved. The results have been verified with a sentence recognition test conducted at the Department of Rehabilitation Science... View full abstract»

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  • Multisensor measurement data association and its performance analysis

    Publication Year: 2000, Page(s):1960 - 1963 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB)

    In this paper, the multiple hypotheses testing (MHT) data association method is derived for a multisensor system based on the priori information of the detection performance of each sensor, and its performance is analyzed in detail. The detection and false alarm probabilities for multisensor system are explicitly defined for the first time, and a calculation example and computer simulations are pr... View full abstract»

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  • Adaptive algorithm based on pilot-channel for multiuser detection

    Publication Year: 2000, Page(s):1754 - 1758 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB)

    A novel adaptive algorithm for MMSE multiuser detection in downlink CDMA is proposed in this paper. This algorithm uses the information in the pilot channel to compute the desired MMSE solution directly. Compared with conventional adaptive algorithms and previously proposed blind algorithms, it does not require training sequences or channel estimation. Analysis shows that the MMSE detector obtaine... View full abstract»

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  • An ultra-wide band orthogonal digital signal generator

    Publication Year: 2000, Page(s):2086 - 2090 vol.3
    Cited by:  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB)

    Three methods of generating waveform digitally are introduced. The time-domain and frequency-domain representations of a sine wave at the output of a waveform generator are carried out. Then some special problems and the solutions associated with ultra-high speed system design are given. An ultra-wideband orthogonal signal generator, whose sampling rate can reach 250 MSPS, is described. The system... View full abstract»

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  • Attribute cluster network and fractal image compression

    Publication Year: 2000, Page(s):1613 - 1616 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (276 KB)

    The greatest disadvantage of fractal image compression is the length of time it takes; so this paper advises using attribute cluster network (ACN) to reduce the time complexity. Using ACN can classify the feature vectors of domain blocks and range blocks, and the searching complexity can be reduced. Moreover, the weight values from ACN indicate the importance of all the points, and the new feature... View full abstract»

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  • Gabor-Atom networks based radar target identification

    Publication Year: 2000, Page(s):1980 - 1983 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    A Gabor-Atom network (GAN) approach for application in radar target recognition is proposed. The Gabor atoms selected by a multilayer feedforward neural network extract discriminant features among different classes of radar target returns. The self-learning mechanism is used not only for the network but for the feature parameters. Results on the classification of microwave anechoic chamber data of... View full abstract»

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  • Comparison of four computer-aided diagnosis schemes for automated discrimination of myocardial heart disease

    Publication Year: 2000, Page(s):2000 - 2003 vol.3
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB)

    The aim of this paper is to compare the performance of four different methods, i.e., neural network (NN) with backpropagation learning, NN with genetic-algorithm-based (GA-based) learning, fuzzy reasoning, and the GA-based fuzzy logic approach, for automated discrimination of myocardial heart disease. In our experiments, a total of 90 samples of echocardiographic images from 45 subjects were used.... View full abstract»

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  • Uuinformation-theoretic reconstruction of moment-coded grey-scale images

    Publication Year: 2000, Page(s):2119 - 2122 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB)

    The information-theoretic method of maximum entropy (ME) is applied to the problem of reconstructing a grey-scale image from a finite set of its geometric moments (GMs). Simulation results, using medical images, demonstrate the superiority of the ME method, with almost threefold compression ratios achieved, over the Legendre moments (LMs) approach View full abstract»

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  • Multiwavelet orthogonal CDMA

    Publication Year: 2000, Page(s):1790 - 1793 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB)

    According to the theory of multiwavelets, a signal can be decomposed into a combination of its projects on wavelet spaces, and the coefficients can be obtained from signal samples by using prefiltering and multifiltering. Since multiwavelets and their translations, whose time-frequency features can be specially designed, overlap in time domain, if they are used as chips in CDMA systems then linear... View full abstract»

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  • An application of fuzzy BP neural network for decision support system

    Publication Year: 2000, Page(s):1726 - 1729 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (204 KB)

    A practical decision support system aims at providing decision-makers with intelligent service on the basis of analyzing the current conditions. Such a system must therefore combine techniques for memorizing, learning and processing information with methods of approximate reasoning. In the paper, we put forward a four-layered fuzzy neural network model for an intelligent decision support system (I... View full abstract»

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