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IEEE Signal Processing Letters

Issue 8 • Aug. 2006

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Displaying Results 1 - 21 of 21
  • Table of contents

    Publication Year: 2006, Page(s):c1 - c4
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  • IEEE Signal Processing Letters publication information

    Publication Year: 2006, Page(s): c2
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  • Design of lossless turbo source encoders

    Publication Year: 2006, Page(s):453 - 456
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (205 KB) | HTML iconHTML

    Lossless turbo source coding with decremental redundancy is an effective approach for compressing binary sources. A large block length lossless turbo source encoder offers compression rates close to the source entropy but with large latency. In this letter, we propose a lossless compression technique for binary memoryless sources using short block length turbo codes. To achieve compression rates c... View full abstract»

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  • Frequency domain scalable and adaptive cancellation of baseband to multitone crosstalk

    Publication Year: 2006, Page(s):457 - 460
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (167 KB) | HTML iconHTML

    Coexistence of baseband (e.g., HDSL, T1) and discrete multitone (e.g., ADSL, VDSL) services in the multipair cable results in a significant amount of baseband to multitone crosstalk. Redundancy in an oversampled crosstalk spectrum allows for partial crosstalk estimation and cancellation without the prerequisite of collocation and synchronization. The canceller proposed in this letter is blind to t... View full abstract»

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  • Fast block inverse jacket transform

    Publication Year: 2006, Page(s):461 - 464
    Cited by:  Papers (26)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (254 KB) | HTML iconHTML

    One-dimensional and two-dimensional fast algorithms for realizing the block inverse jacket transform with size of N=2k and 3 k are proposed. The fast algorithms are based on sparse matrix factorization of the block inverse jacket matrix and recursive form of the Kronecker products of identity matrices and successively lower-order block inverse jacket matrices View full abstract»

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  • Generalized Time-Series Active Search With Kullback–Leibler Distance for Audio Fingerprinting

    Publication Year: 2006, Page(s):465 - 468
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB) | HTML iconHTML

    In this letter, a new audio fingerprinting approach is presented. We investigate to improve robustness by more precise statistical fingerprint modeling with common component Gaussian mixture models (CCGMMs) and Kullback-Leibler (KL) distance, which is more suitable to measure the dissimilarity between two probabilistic models. To address the resulting complexity, generalized time-series active sea... View full abstract»

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  • A practical approach for the design of nonuniform lapped transforms

    Publication Year: 2006, Page(s):469 - 472
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (306 KB) | HTML iconHTML

    We propose a simple method for the design of lapped transforms with nonuniform frequency resolution and good time localization. The method is a generalization of an approach previously proposed by Princen, where the nonuniform filter bank is obtained by joining uniform cosine-modulated filter banks (CMFBs) using a transition filter. We use several transition filters to obtain a near perfect-recons... View full abstract»

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  • On OFDM and single-carrier frequency-domain systems based on trigonometric transforms

    Publication Year: 2006, Page(s):473 - 476
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (223 KB) | HTML iconHTML

    Orthogonal-frequency-division-multiplex (OFDM) and single-carrier (SC) frequency domain structures are simple equalization schemes that make use of the discrete Fourier transform (DFT) diagonalization properties. This letter approaches these problems within a well-known matrix algebra that allows for straightforward extensions of recent results on real trigonometric transforms, namely, the discret... View full abstract»

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  • Complex rational orthogonal wavelet and its application in communications

    Publication Year: 2006, Page(s):477 - 480
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (187 KB) | HTML iconHTML

    This letter proposes a generalized method to construct complex wavelets under the framework of rational multiresolution analysis, MRA(M), where M is a rational number. Theorems and examples are given for the construction of complex rational orthogonal wavelets (CROWs) whose real and imaginary parts form an exact Hilbert transform pair. Since the classical Mallat's MRA is a special case of the rati... View full abstract»

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  • Highly concurrent reduced-complexity 2-D systolic array for discrete Fourier transform

    Publication Year: 2006, Page(s):481 - 484
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (267 KB) | HTML iconHTML

    A simple two-dimensional (2-D) architecture is derived for highly concurrent systolization of the discrete Fourier transform (DFT). The concurrency of computation has been enhanced, and complexity is minimized by the proposed algorithm where an N-point DFT is computed via four inner-products of real-valued data of length ap(N/2). The proposed structure offers significantly lower latency, higher th... View full abstract»

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  • A new method for multidimensional optimization and its application in image and video processing

    Publication Year: 2006, Page(s):485 - 488
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (362 KB) | HTML iconHTML

    We derive a new method for multidimensional dynamic programming using the inclusion-exclusion principle. We subsequently propose an extension of the Viterbi algorithm to semi-causal, multidimensional functions. This approach is based on extension of the 1-D trellis structure of the Viterbi algorithm to a tree structure in higher dimensions. We apply the dynamic tree programming algorithm to active... View full abstract»

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  • Design of near-perfect reconstruction two-parallelogram filter-banks

    Publication Year: 2006, Page(s):489 - 492
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (313 KB) | HTML iconHTML

    The design of nonseparable 2-D filter banks presents several difficulties, which do not arise in the 1-D counterparts. One particular aspect to be taken into consideration is the shape of the passbands of the filters. In the work of Lin and Vaidyanathan, a formulation of perfect-reconstruction (PR) cosine-modulated filter-banks (CMFBs) is proposed, with filters having a "two-parallelogram" (Two-P)... View full abstract»

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  • Finite-horizon robust Kalman filtering for uncertain discrete time-varying systems with uncertain-covariance white noises

    Publication Year: 2006, Page(s):493 - 496
    Cited by:  Papers (50)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (139 KB) | HTML iconHTML

    A finite-horizon robust Kalman filtering approach for discrete time-varying uncertain systems with additive uncertain-covariance white noises is presented. The system under consideration is subject to uncertainties in both the state and output matrices. The state and gain matrices of the filter are optimized to give a minimal upper bound on the state estimation error covariance for all admissible ... View full abstract»

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  • Speech/non-speech discrimination based on contextual information integrated bispectrum LRT

    Publication Year: 2006, Page(s):497 - 500
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (188 KB) | HTML iconHTML

    This letter shows an effective statistical voice activity detection algorithm based on the integrated bispectrum, which is defined as a cross spectrum between the signal and its square and inherits the ability of higher order statistics to detect signals in noise with many other additional advantages: 1) its computation as a cross spectrum leads to significant computational savings, and 2) the var... View full abstract»

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  • A Bayesian formulation of edge-stopping functions in nonlinear diffusion

    Publication Year: 2006, Page(s):501 - 504
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB) | HTML iconHTML

    We propose a novel, Bayesian formulation of the edge-stopping (diffusivity) function in a nonlinear diffusion scheme in terms of edge probability under a marginal prior on noise-free gradient. This formulation differs from the existing probabilistic diffusion approaches that give stochastic formulations for the conductivity but not for the diffusivity function of the gradient. In particular, we im... View full abstract»

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  • Bi-loop recursive least squares algorithm with forgetting factors

    Publication Year: 2006, Page(s):505 - 508
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (162 KB) | HTML iconHTML

    This letter develops a novel recursive least squares algorithm with forgetting factors (FRLS) named as the bi-loop recursive least squares algorithm with forgetting factors (BLFRLS). The BLFRLS is also established from the FRLS and an in-between recursive least squares algorithm with forgetting factors (IFRLS). The BLFRLS promotes the tracking capability of parameters estimation for time-varying s... View full abstract»

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  • Unsupervised speaker change detection using probabilistic pattern matching

    Publication Year: 2006, Page(s):509 - 512
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (121 KB) | HTML iconHTML

    This letter presents an investigation into the use of a probabilistic pattern matching approach for detecting speaker changes in audio streams. The experiments are conducted using clean speech as well as broadcast news material. It is shown that, in the proposed approach, the use of bilateral scoring is considerably more effective than unilateral scoring. Appropriate score normalization methods ar... View full abstract»

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  • IEEE Signal Processing Letters Information for authors

    Publication Year: 2006, Page(s):513 - 514
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  • Special issue on music information retrieval (MIR)

    Publication Year: 2006, Page(s): 515
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  • Call for papers on network-aware multimedia processing and communications

    Publication Year: 2006, Page(s): 516
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  • IEEE Signal Processing Society Information

    Publication Year: 2006, Page(s): c3
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Aims & Scope

The IEEE Signal Processing Letters is a monthly, archival publication designed to provide rapid dissemination of original, cutting-edge ideas and timely, significant contributions in signal, image, speech, language and audio processing.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
James E. Fowler
Dept Electrical & Computer Engineering
Associate Director                         
Distributed Analytics and Security Institute
Mississippi State University
Mississippi State, MS 39762 USA
fowler@ece.msstate.edu