# IEEE Transactions on Signal Processing

## Filter Results

Displaying Results 1 - 25 of 42

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

Publication Year: 2006, Page(s): c2
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• ### Minimax Adaptive Spectral Estimation From an Ensemble of Signals

Publication Year: 2006, Page(s):2865 - 2873
Cited by:  Papers (2)
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We develop a statistical method for estimating the spectrum from a data set that consists of several signals, all of which are realizations of a common random process. We first find estimates of the common spectrum using each signal; then we construct M partial aggregates. Each partial aggregate is a linear combination of M-1 of the spectral estimates. The weights are obtained from the data via a ... View full abstract»

• ### Design and Analysis of MIMO Spatial Multiplexing Systems With Quantized Feedback

Publication Year: 2006, Page(s):2874 - 2886
Cited by:  Papers (74)  |  Patents (4)
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This paper investigates the problem of transmit beamforming in multiple-antenna spatial multiplexing (SM) systems employing a finite-rate feedback channel. Assuming a fixed number of spatial channels and equal power allocation, we propose a new criterion for designing the codebook of beamforming matrices that is based on minimizing an approximation to the capacity loss resulting from the limited r... View full abstract»

• ### Dynamic Quantizer Design for Hidden Markov State Estimation Via Multiple Sensors With Fusion Center Feedback

Publication Year: 2006, Page(s):2887 - 2896
Cited by:  Papers (23)
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This paper considers the state estimation of hidden Markov models by sensor networks. The objective is to minimize the long term average of the mean square estimation error for the underlying finite state Markov chain. By employing feedback from the fusion center, a dynamic quantization scheme for the sensor nodes is proposed and analyzed by a stochastic control approach. Dynamic rate allocation i... View full abstract»

• ### Robust Mixed$H_2/H_infty$Filtering for Time-Delay Fuzzy Systems

Publication Year: 2006, Page(s):2897 - 2909
Cited by:  Papers (32)
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In this paper, a robust mixed H2/Hinfin filtering problem for continuous-time fuzzy systems subject to parameter uncertainties and multiple time-varying delays in state variables is addressed. The uncertain systems are expressed as Takagi-Sugeno fuzzy models with linear nominal parts and norm-bounded uncertainties. The main objective is to design stable filters that minimize ... View full abstract»

• ### A Numerical-Integration Perspective on Gaussian Filters

Publication Year: 2006, Page(s):2910 - 2921
Cited by:  Papers (119)
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This paper proposes a numerical-integration perspective on the Gaussian filters. A Gaussian filter is approximation of the Bayesian inference with the Gaussian posterior probability density assumption being valid. There exists a variation of Gaussian filters in the literature that derived themselves from very different backgrounds. From the numerical-integration viewpoint, various versions of Gaus... View full abstract»

• ### Minimum Description Length Denoising With Histogram Models

Publication Year: 2006, Page(s):2922 - 2928
Cited by:  Papers (3)
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In this paper, we relax the usual assumptions in denoising that the data consist of a "true" signal to which normally distributed noise is added. Instead of regarding noise as the high-frequency part in the data to be removed either by a "hard" or "soft" threshold, we define it as that part in the data which is harder to compress than the rest with the class of models considered. Here, we model th... View full abstract»

• ### Turbo Source Extraction Algorithm and Noncancellation Source Separation Algorithms by Kurtosis Maximization

Publication Year: 2006, Page(s):2929 - 2942
Cited by:  Papers (7)
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The kurtosis maximization criterion has been effectively used for blind spatial extraction of one source from an instantaneous mixture of multiple non-Gaussian sources, such as the kurtosis maximization algorithm by Ding and Nguyen, and the fast kurtosis maximization algorithm (FKMA) by Chi and Chen. By empirical studies, we found that the smaller the normalized kurtosis magnitude of the extracted... View full abstract»

• ### Uniformly Improving the Cram&#201;r-Rao Bound and Maximum-Likelihood Estimation

Publication Year: 2006, Page(s):2943 - 2956
Cited by:  Papers (32)
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An important aspect of estimation theory is characterizing the best achievable performance in a given estimation problem, as well as determining estimators that achieve the optimal performance. The traditional Cramer-Rao type bounds provide benchmarks on the variance of any estimator of a deterministic parameter vector under suitable regularity conditions, while requiring a-priori specification of... View full abstract»

• ### Kalman Filtering in Triplet Markov Chains

Publication Year: 2006, Page(s):2957 - 2963
Cited by:  Papers (14)
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Let x = {xn} nisinIN be a hidden process, y = {yn}nisinIN an observed process, and r = {rn}nisinIN some additional process. We assume that t = (x, r, y) is a (so-called "Triplet") vector Markov chain (TMC We first show that the linear TMC model encompasses and generalizes, among other models, the classical state-space systems with colored proc... View full abstract»

• ### Variance and Correlation of Square-Law Detected Allpass Channels With Bandpass Harmonic Signals in Gaussian Noise

Publication Year: 2006, Page(s):2964 - 2975
Cited by:  Papers (3)
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A bandpass harmonic signal consists of a multiple tone complex with uniform spacing of the frequencies. This paper considers the correlation of square-law detected allpass channels with such signals in Gaussian noise. The square-law mixing terms of each allpass filtered channel are low-pass filtered to produce the detector output components, and then are synchronously demodulated at the tone diffe... View full abstract»

• ### The Gaussian Transform of Distributions: Definition, Computation and Application

Publication Year: 2006, Page(s):2976 - 2985
Cited by:  Papers (16)
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This paper introduces the general-purpose Gaussian transform of distributions, which aims at representing a generic symmetric distribution as an infinite mixture of Gaussian distributions. We start by the mathematical formulation of the problem and continue with the investigation of the conditions of existence of such a transform. Our analysis leads to the derivation of analytical and numerical to... View full abstract»

• ### High-Resolution Direction Finding From Higher Order Statistics: The$2rm q$-MUSIC Algorithm

Publication Year: 2006, Page(s):2986 - 2997
Cited by:  Papers (81)  |  Patents (2)
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From the beginning of the 1980s, many second-order (SO) high-resolution direction-finding methods, such as the MUSIC method (or 2-MUSIC), have been developed mainly to process efficiently the multisource environments. Despite of their great interests, these methods suffer from serious drawbacks such as a weak robustness to both modeling errors and the presence of a strong colored background noise ... View full abstract»

• ### Robust Distributed Estimation Using the Embedded Subgraphs Algorithm

Publication Year: 2006, Page(s):2998 - 3010
Cited by:  Papers (40)
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We propose a new iterative, distributed approach for linear minimum mean-square-error (LMMSE) estimation in graphical models with cycles. The embedded subgraphs algorithm (ESA) decomposes a loopy graphical model into a number of linked embedded subgraphs and applies the classical parallel block Jacobi iteration comprising local LMMSE estimation in each subgraph (involving inversion of a small matr... View full abstract»

• ### A Direct Design of Oversampled Perfect Reconstruction FIR Filter Banks

Publication Year: 2006, Page(s):3011 - 3022
Cited by:  Papers (17)
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We address a problem to find optimal synthesis filters of oversampled uniform finite-impulse-response (FIR) filter banks (FBs) yielding perfect reconstruction (PR), when we are given an analysis FB, in the case where all the filters have the same length that is twice a factor of downsampling. We show that in this class of FBs, a synthesis FB that achieves PR can be found in closed form with elemen... View full abstract»

• ### Weighted-Least-Squares Design of Variable Fractional-Delay FIR Filters Using Coefficient Symmetry

Publication Year: 2006, Page(s):3023 - 3038
Cited by:  Papers (118)
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Our previous work has shown that the coefficient symmetry can be efficiently exploited in designing variable finite-impulse-response (FIR) filters with simultaneously tunable magnitude and fractional-delay responses. This paper presents the optimal solutions for the weighted-least-squares (WLS) design of variable fractional-delay (VFD) FIR filters with same-order and different-order subfilters thr... View full abstract»

• ### A Higher Density Discrete Wavelet Transform

Publication Year: 2006, Page(s):3039 - 3048
Cited by:  Papers (43)
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This paper describes a new set of dyadic wavelet frames with two generators. The construction is simple, yet the wavelets cover the time-frequency plane in an arrangement that provides a higher sampling in both time and frequency. Specifically, the spectrum of the first wavelet is concentrated halfway between the spectrum of the second wavelet and the spectrum of its dilated version. In addition, ... View full abstract»

• ### Optimal Pairwise Fourth-Order Independent Component Analysis

Publication Year: 2006, Page(s):3049 - 3063
Cited by:  Papers (16)
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Blind source separation (BSS) aims at the reconstruction of unknown mutually independent signals, so-called sources, from their mixtures observed at the output of a sensor array. The BSS of instantaneous linear mixtures, which finds application in numerous fields, can be solved through the statistical tool of independent component analysis (ICA). This paper concentrates on the analytic solutions f... View full abstract»

• ### Design and Analysis of a Scalable Watermarking Scheme for the Scalable Audio Coder

Publication Year: 2006, Page(s):3064 - 3077
Cited by:  Papers (5)  |  Patents (1)
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In this paper, we present a scalable approach to lossless watermarking for audio signals. The proposed watermarking framework is built on a recently standardized two-layer scalable audio coder advanced audio zip (AAZ) . By embedding watermarks in both the core layer and enhancement layer bitstreams in a special way, the watermark distortion in either layer is compensated by the watermark in the op... View full abstract»

• ### Beamspace Transform for UCA: Error Analysis and Bias Reduction

Publication Year: 2006, Page(s):3078 - 3089
Cited by:  Papers (39)
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In this paper, we analyze the error caused by the beamspace transform (BT) when it is applied to uniform circular array (UCA) configuration. Several algorithms for direction of arrival (DoA) estimation exploit this modal transform because it allows using computationally efficient techniques such as polynomial rooting and dealing with coherent sources. The BT is based on the phase-mode excitation p... View full abstract»

• ### MBER Space-Time Decision Feedback Equalization Assisted Multiuser Detection for Multiple Antenna Aided SDMA Systems

Publication Year: 2006, Page(s):3090 - 3098
Cited by:  Papers (23)
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This paper proposes a space-time decision feedback equalization (ST-DFE) assisted multiuser detection (MUD) scheme for multiple receiver antenna aided space division multiple access systems. A minimum bit error rate (MBER) design is invoked for the MUD, which is shown to be capable of improving the achievable bit error rate performance and enhancing the attainable system capacity over that of the ... View full abstract»

• ### Minimizing the Peak-to-Average Power Ratio of OFDM Signals Using Convex Optimization

Publication Year: 2006, Page(s):3099 - 3110
Cited by:  Papers (75)
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The main disadvantage of orthogonal frequency-division multiplexing (OFDM) is the high time-domain peak-to-average power ratio (PAR) that limits transmitter power efficiency. Assuming no changes in receiver structure, the transmitter can only reduce PAR by distorting the data carriers or by adding power to the free carriers. This paper shows that the OFDM signal with globally minimum PAR, subject ... View full abstract»

• ### Approximations of One-Dimensional Digital Signals Under the$l^infty$Norm

Publication Year: 2006, Page(s):3111 - 3124
Cited by:  Papers (2)
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Approximation of digital signals by means of continuous-time functions is often required in many tasks of digital to analog conversion, signal processing, and coding. In many cases the approximation is performed based on an l2 optimality criterion; in this paper we study approximations of one-dimensional signals under the linfin norm. We first introduce approximations in line... View full abstract»

• ### Blind Frequency Synchronization in OFDM via Diagonality Criterion

Publication Year: 2006, Page(s):3125 - 3135
Cited by:  Papers (36)
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In this paper, we address the problem of blind carrier frequency offset (CFO) estimation in orthogonal frequency-division multiplexing (OFDM) systems in the case of frequency-selective channels. CFO destroys the orthogonality between the carriers leading to nondiagonal signal covariance matrices in frequency domain. The proposed blind method enforces a diagonal structure by minimizing the power of... View full abstract»

## Aims & Scope

IEEE Transactions on Signal Processing covers novel theory, algorithms, performance analyses and applications of techniques for the processing, understanding, learning, retrieval, mining, and extraction of information from signals

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## Meet Our Editors

Editor-in-Chief
Pier Luigi Dragotti
Imperial College London