Browsing DSP Publications by Type "Report"
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The 2nuSVM: A CostSensitive Extension of the nuSVM
(20051201)Standard classification algorithms aim to minimize the probability of making an incorrect classification. In many important applications, however, some kinds of errors are more important than others. In this report we ... 
Adaptive Wavelet Transforms via Lifting
(19990115)This paper develops new algorithms for adapted multiscale analysis and signal adaptive wavelet transforms. We construct our adaptive transforms with the <i>lifting scheme</i>, which decomposes the wavelet transform into ... 
Algorithms for Optimal Numerical Quadrature Based on Signal Class Models
(19791101)A framework is presented for constructing various types of numerical quadrature algorithms which take into account the apriori known or estimated properties of the signal being processed. This is done by appropriately ... 
Analysis of the DCS onestage Greedy Algorothm for Common Sparse Supports
(20051101)Analysis of the DCS onestage Greedy Algorothm for Common Sparse Supports 
Application of a Frequency Domain Prony Method to Wide Bandwidth Radar Signature Classification
(19790920)A frequency domain Prony approach is presented for extracting features of return signals from targets illuminated by wide bandwidth (short pulse) radar. Theoretical details pertaining to this approach are described in a ... 
Compressing Piecewise Smooth Multidimensional Functions Using Surflets: RateDistortion Analysis
(20040301)Discontinuities in data often represent the key information of interest. Efficient representations for such discontinuities are important for many signal processing applications, including compression, but standard Fourier ... 
Design of Linear Phase Cosine Modulated Filter Banks for Subband Image Compression
(19940115)Wavelet methods give a flexible alternative to Fourier methods in nonstationary signal analysis. The concept of bandlimitedness plays a fundamental role in Fourier analysis. Since wavelet theory replaces frequency with ... 
Detection and estimation with compressive measurements
(20061101)The recently introduced theory of compressed sensing enables the reconstruction of sparse or compressible signals from a small set of nonadaptive, linear measurements. If properly chosen, the number of measurements can ... 
Digital Signal Processing Structures: Block and Multidemensional Formulation and Distributed Arithmetic
(19780120)In this report we will consider a special class of digital filter structure; and by structure we mean the particular arrangement and sequence of arithmetic and storage operations to realize a desired signal processing ... 
Distributed Multiscale Data Analysis and Processing for Sensor Networks
(20050201)While multiresolution data analysis, processing, and compression hold considerable promise for sensor network applications, progress has been confounded by two factors. First, typical sensor data are irregularly spaced, ... 
Edge Characteristics in WaveletBased Image Coding
(20010420)Accurate prediction of wavelet coefficients relies on an understanding of the phase effects of edge alignment. This research examines techniques for uncovering edge information based on the available coefficients. These ... 
The Effect of Intersymbol Interference on the Performance of a Digital FM System
(19741020)The error performance of a digital FM system is studied in the presence of additive Gaussian noise. The digital system considered is a conventional one employing a voltagecontrolled oscillator as the modulator and a ... 
Efficient Solution of a ToeplitzPlusHankel Coefficient Matrix System of Equations
(19800501)Frequently in signal processing one is faced with situations where a large system of linear equations, with a Toeplitz or a Hankel coefficient matrix, needs to be solved. One efficient way of solving these kinds of equations ... 
Fast, Exact Synthesis of Gaussian and nonGaussian LongRangeDependent Processes
(20090415)1/f noise and statistically selfsimilar random processes such as fractional Brownian motion (fBm) and fractional Gaussian noise (fGn) are fundamental models for a host of realworld phenomena, from network traffic to ... 
A FourierProny Tauberian Approach to the Analysis of a Mixture of Delayed Signals
(19790920)Let x and y be signals (i.e. realvalued functions of time) of finite duration and energy. In the present paper, we develop a frequency domain Prony approach for interpolating, or in general, approximating y(t) by .... 
Improving the Resolution of Bearing in Passive Sonar Arrays by Eigenvalue Analysis
(19810801)A method of improving the bearingresolving capabilities of a passive array is discussed. This method is an adaptive beamforming method, having many similarities to the minimum energy approach. The evaluation of energy ... 
Magnitude Weighting and Time Segmentation for PhaseOnly Reconstruction of Signals
(19810401)Phaseonly reconstruction of signals and its application to blinddeconvolution were introduced recently by Oppenheim, and by Hayes, et.al. In this report, we briefly present another description of this phaseonly ... 
A Markov Chain Analysis of Blackjack Strategy
(20040701)Blackjack receives considerable attention from mathematicians and entrepreneurs alike, due to its simple rules, its inherent random nature, and the abundance of "prior" information available to an observant player. Many ... 
Multiresolution Intensity Estimation of Piecewise Linear Poisson Processes
(20010420)Given observations of a onedimensional piecewise linear, lengthM Poisson intensity function, our goal is to estimate both the partition points and the parameters of each segment. In order to determine where the breaks ... 
A Multiscale Data Representation for Distributed Sensor Networks: Proofs of Basis Characteristics and Error Bounds
(20040901)Provides proofs of Parseval tightframe membership and approximation properties for the basis proposed in "A Multiscale Data Representation for Distributed Sensor Networks" by R. Wagner, S. Sarvotham, and R. Baraniuk (ICASSP ... 
Multiscale Density Estimation
(20030820)The nonparametric density estimation method proposed in this paper is computationally fast, capable of detecting density discontinuities and singularities at a very high resolution, spatially adaptive, and offers near ... 
Multiscale Queuing Analysis
(20040901)We develop a new approach to queuing analysis for an infinitelength queue with constant service rate fed by an arbitrary traffic process. Our approach is particularly relevant to queues fed with longrangedependent (LRD) ... 
A New and Efficient Program for Finding All Polynomial Roots
(19930115)Finding polynomial roots rapidly and accurately is an important problem in many areas of signal processing. We present a new program which is a combination of Muller's and Newton's method. We use the former for computing ... 
Nonlinear Processing of a Shift Invariant DWT for Noise Reduction
(19950320)A novel approach for noise reduction is presented. Similar to Donoho, we employ thresholding in some wavelet transform domain but use a nondecimated and consequently redundant wavelet transform instead of the usual orthogonal ... 
On a Class of Minimum Energy Controls Related to Spline Functions
(19750720)The problem of determining a minimum energy control for a dynamically interconnected set of p singleinput singleoutput finitedimensional linear timevarying dynamical systems, for which the outputs are constrained to ... 
On the Correlation Structure of Multiplicity M Scaling Functions and Wavelets
(19920115)In this paper we study the autocorrelation and crosscorrelation structure of the scaling and wavelet functions associated with compactly supported orthonormal wavelet basis. These correlation structures play an important ... 
On the Moments of the Scaling Function psi_0
(19920115)This paper derives relationships between the moments of the scaling function psi_0(t) associated with multiplicity M, Kregular, compactly supported, orthonormal wavelet bases [6, 5] that are extensions of the multiplicity ... 
Optimal Phase Kernels for TimeFrequency Analysis
(19960101)We consider the design of kernels for timefrequency distributions through the phase, rather than amplitude, response. While phase kernels do not attenuate troublesome crosscomponents, they can translate them in the ... 
Optimal Signaling Strategies for Symmetric and Asymmetric BitRate Communication Services in the Presence of Crosstalk
(19990115)We have invented a new modem technology for transmitting data on conventional telephone lines (twisted pairs) at high speeds. This discovery is timely, as new standards are being developed for this Digital Subscriber Line ... 
Optimal Transmit Spectra for HDSL2
(19980115)We present a general framework for designing optimal transmit spectra for the HDSL2 service. Using the channel and interference transfer functions and SNR estimates, we set up and solve an optimization problem to maximize ... 
Optimal Transmit Spectra for HDSL2 under a Peak FrequencyDomain Power Constraint
(19980115)We present a technique for designing optimal transmit spectra for the HDSL2 service subject to a peak power constraint in the frequency domain. The peak power constraint might be imposed either due to engineering considerations ... 
Optimal wavelets for signal decomposition and the existence of scale limited signals
(19920115)Wavelet methods give a flexible alternative to Fourier methods in nonstationary signal analysis. The concept of <i>bandlimitedness</i> plays a fundamental role in Fourier analysis. Since wavelet theory replaces ... 
Platelets: A Multiscale Approach for Recovering Edges and Surfaces in PhotonLimited Medical Imaging
(20011020)This paper proposes a new multiscale image decomposition based on platelets. Platelets are localized functions at various scales, locations, and orientations that produce piecewise linear image approximations. Platelets ... 
Quantization of Sparse Representations
(20070116)Compressive sensing (CS) is a new signal acquisition technique for sparse and compressible signals. Rather than uniformly sampling the signal, CS computes inner products with randomized basis functions; the signal is then ... 

A recursive algorithm for digital Image Processing using Local Statistics
(19790620)An algorithm is presented for digital image processing based on local statistics. The algorithm constitutes a recursive implementaiton of an approach proposed and implemented nonrecursively by J.S. Lee (Naval Research ... 
Remembering John Napier and His Logarithms
(20020520)This article describes John Napier's original defintion of logarithms and presents his method of tabulation for the first logarithmic table. Napier's logarithms are found to have an intimate relationship with the natural ... 
Spectral Optimization and Joint Signaling Techniques for Communication in the Presence of Crosstalk
(19980115)We have invented a new modem technology for transmitting data on conventional telephone lines (twisted pairs) at high speeds. This discovery is timely, as new standards are being developed for this Digital Subscriber Line ... 
A Theoretical Analysis of Joint Manifolds
(200901)The emergence of lowcost sensor architectures for diverse modalities has made it possible to deploy sensor arrays that capture a single event from a large number of vantage points and using multiple modalities. In many ... 
Transmit Spectra Adaptive to Noise and Interference at Activation for HDSL2
(19980115)We present several methods for implementing optimal HDSL2 transmit spectra that, at activation, adapt to the surrounding interference and noise. The methods are based around either a set of fixed transmit filters or a ... 
Tuning support vector machines for minimax and NeymanPearson classification
(20080819)This paper studies the training of support vector machine (SVM) classifiers with respect to the minimax and NeymanPearson criteria. In principle, these criteria can be optimized in a straightforward way using a costsensitive ... 
Useful Facts about the KullbackLeibler Discrimination Distance
(20041201)This report contains a list of some of the more prominent properties and theorems concerning the KullbackLeibler (KL) discrimination distance. A brief discussion is also provided indicating the type of problems in which ... 
WCDMA realtime algorithm implementation and evaluation
(20000520)This paper describes a platform to enable and explore the design and implementation of nextgeneration CDMA wireless base stations. A DSP and FPGAbased multiprocessor board is integrated into a Simulinkbased wireless ... 
Wavelet Based SAR Speckle Reduction and Image Compression
(19950115)This paper evaluates the performance of the recently published wavelet based algorithm for speckle reduction of SAR images. The original algorithm, based on the theory of wavelet thresholding due to Donoho and Johnstone, ... 
WaveletBased PostProcessing of Low Bit Rate Transform Coded Images
(19940115)In this paper we propose a novel method based on wavelet thresholding for enhancement of decompressed transform coded images. Transform coding at low bit rates typically introduces artifacts associated witht he basis ...