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Applications of Time-Frequency Signal Processing in Wireless Communications and Bioengineering

  1. Research Article

    Cross Time-Frequency Analysis of Gastrocnemius Electromyographic Signals in Hypertensive and Nonhypertensive Subjects

    The effects of hypertension are chronic and continuous; it affects gait, balance, and fall risk. Therefore, it is desirable to assess gait health across hypertensive and nonhypertensive subjects in order to pr...

    Patrick Mitchell, Debra Krotish, Yong-June Shin and Victor Hirth

    EURASIP Journal on Advances in Signal Processing 2010 2010:206560

    Published on: 22 August 2010

  2. Research Article

    High-Resolution Time-Frequency Methods' Performance Analysis

    This work evaluates the performance of high-resolution quadratic time-frequency distributions (TFDs) including the ones obtained by the reassignment method, the optimal radially Gaussian kernel method, the t-f...

    Imran Shafi, Jamil Ahmad, SyedIsmail Shah, AtaulAziz Ikram, Adnan Ahmad Khan, Sajid Bashir and FaisalMahmood Kashif

    EURASIP Journal on Advances in Signal Processing 2010 2010:806043

    Published on: 8 August 2010

  3. Research Article

    Eigenvectors of the Discrete Fourier Transform Based on the Bilinear Transform

    Determining orthonormal eigenvectors of the DFT matrix, which is closer to the samples of Hermite-Gaussian functions, is crucial in the definition of the discrete fractional Fourier transform. In this work, we...

    Ahmet Serbes and Lutfiye Durak-Ata (EURASIP Member)

    EURASIP Journal on Advances in Signal Processing 2010 2010:191085

    Published on: 14 July 2010

  4. Review Article

    A Human Gait Classification Method Based on Radar Doppler Spectrograms

    An image classification technique, which has recently been introduced for visual pattern recognition, is successfully applied for human gait classification based on radar Doppler signatures depicted in the tim...

    Fok Hing Chi Tivive, Abdesselam Bouzerdoum and Moeness G. Amin

    EURASIP Journal on Advances in Signal Processing 2010 2010:389716

    Published on: 12 July 2010

  5. Research Article

    A New LFM-Signal Detector Based on Fractional Fourier Transform

    A new LFM-signal detector formulated by the integration of the 4th-power modulus of the fractional Fourier transform is proposed. It has similar performance to the modulus square detector of Radon-ambiguity tr...

    Zhiping Yin and Weidong Chen

    EURASIP Journal on Advances in Signal Processing 2010 2010:876282

    Published on: 12 July 2010

  6. Research Article

    The Spread of a Noise Field in a Dispersive Medium

    We discuss the production of induced noise by a pulse and the propagation of the noise in a dispersive medium. We present a simple model where the noise is the sum of pulses and where the mean of each pulse is...

    Leon Cohen

    EURASIP Journal on Advances in Signal Processing 2010 2010:484753

    Published on: 17 June 2010

  7. Research Article

    Synchronization between EMG at Different Uterine Locations Investigated Using Time-Frequency Ridge Reconstruction: Comparison of Pregnancy and Labor Contractions

    The extraction of the frequency components of a signal can be useful for the characterization of the underlying system. One method for isolating a frequency component of a signal is by the extraction and recon...

    Jérémy Terrien, Thora Steingrimsdottir, Catherine Marque and Brynjar Karlsson

    EURASIP Journal on Advances in Signal Processing 2010 2010:242493

    Published on: 8 June 2010

  8. Research Article

    Interactions between Uterine EMG at Different Sites Investigated Using Wavelet Analysis: Comparison of Pregnancy and Labor Contractions

    This paper describes the use of the Morlet wavelet transform to investigate the difference in the time-frequency plane between uterine EMG signals recorded simultaneously on two different sites on women's abdo...

    Mahmoud Hassan, Jérémy Terrien, Brynjar Karlsson and Catherine Marque

    EURASIP Journal on Advances in Signal Processing 2010 2010:918012

    Published on: 3 June 2010

  9. Research Article

    Time-Frequency Data Reduction for Event Related Potentials: Combining Principal Component Analysis and Matching Pursuit

    Joint time-frequency representations offer a rich representation of event related potentials (ERPs) that cannot be obtained through individual time or frequency domain analysis. This representation, however, c...

    Selin Aviyente, Edward M. Bernat, Stephen M. Malone and William G. Iacono

    EURASIP Journal on Advances in Signal Processing 2010 2010:289571

    Published on: 2 June 2010

  10. Research Article

    Approximating the Time-Frequency Representation of Biosignals with Chirplets

    A new member of the Cohen's class time-frequency distribution is proposed. The kernel function is determined adaptively based on the signal of interest. The kernel preserves the chirp-like components while rem...

    Omid Talakoub, Jie Cui and Willy Wong

    EURASIP Journal on Advances in Signal Processing 2010 2010:857685

    Published on: 31 May 2010

  11. Research Article

    Time-Frequency Analysis and Hermite Projection Method Applied to Swallowing Accelerometry Signals

    Fast Hermite projections have been often used in image-processing procedures such as image database retrieval, projection filtering, and texture analysis. In this paper, we propose an innovative approach for t...

    Irena Orović, Srdjan Stanković, Tom Chau, Catriona M. Steele and Ervin Sejdić

    EURASIP Journal on Advances in Signal Processing 2010 2010:323125

    Published on: 3 May 2010

  12. Research Article

    Wavelength- and Time-Selective Reconfigurable Optical Add/Drop Multiplexer Using Time-Frequency Domain Processing

    We propose and demonstrate a wavelength- and time-selective reconfigurable optical add/drop multiplexer (ROADM) using time-frequency domain processing. The proposed ROADM is realized by allocating wavelength c...

    Tsuyoshi Konishi, Ryosuke Itoh and Kazuyoshi Itoh

    EURASIP Journal on Advances in Signal Processing 2010 2010:807521

    Published on: 29 April 2010