Browsing George R. Brown School of Engineering by Title
Now showing items 10981117 of 1783

Nonlinear Wavelet Transforms for Image Coding via Lifting
(20031201)We investigate central issues such as invertibility, stability, synchronization, and frequency characteristics for nonlinear wavelet transforms built using the lifting framework. The nonlinearity comes from adaptively ... 
Nonlinear WignerVille Spectrum Estimation using Wavelet Soft Thresholding
(19950401)The large variance of the WignerVille distribution makes smoothing essential for producing readable estimates of the timevarying power spectrum of noise corrupted signals. Since linear smoothing trades reduced variance ... 
NonlinearPhase MaximallyFlat FIR Filter Deisgn
(19960920)This paper reports a new analytic technique for the design of nonlinearphase maximallyflat lowpass FIR filters. By subjecting the response magnitude and the group delay (individually) to differing numbers of flatness ... 
Nonparametric prediction of mixing time series
(1992)Prediction of future timeseries values, based on a finite set of available observations, is a prevalent problem in many branches of science and engineering. By making the assumption that the time series is either Gaussian ... 
Nonparametric, Low Bias, and Low Variance TimeFrequency Analysis of Myoelectric Signals
(19950901)The authors apply Thomson's multiple window method (see D. Thomson â Spectrum Estimation and Harmonic Analysisâ , Proc. of the IEEE, vol. 70, no. 9, p. 105596) to myoelectric signal timefrequency analysis for the first ... 
Nonresonant surface enhanced Raman optical activity
(2009)Nanoshells (NS) and nanoparticles (NP) are tunable plasmonic particles that can be precisely engineered for specific applications including surface enhanced spectroscopies. A new, general method for the synthesis of ... 
Nonstationary signal classification using pseudo power signatures
(19980620)This paper deals with the problem of classification of nonstationary signals using signatures which are essentially independent of the signal length. We develop the notion of a separable approximation to the Continuous ... 
Nonstationary signal classification using pseudo power signatures: The Matrix SVD Approach
(19991220)This paper deals with the problem of classification of nonstationary signals using signatures which are essentially independent of the signal length. This independence is a requirement in common classification problems ... 
Nonstationary Signal Enhancement Using The Wavelet Transform
(19960320)Conventional signal processing typically involves frequency selective techniques which are highly inadequate for nonstationary signals. In this paper, we present an approach to perform timefrequency selective processing ... 
A Normalization Scheme to Reduce Numerical Errors in Inverse Tangent comptations on a Fixedpoint CORDIC Processor
(19920520)Coordinate Rotation Digital Computer (CORDIC) is a unified arithmetic algorithm that allows efficient VLSI implementation of several elementary functions. Many specialpurpose systems for realtime signal processing ... 
A Note on the Characterization of Bivariate Densities by Conditional Densities
(19790901)The compatibility of pairs of conditional densities and the uniqueness of the resulting bivariate densities are discussed. Examples are given involving beta, gamma, and Gaussian conditional densities. 
A Novel Adaptive PreDistorter Using LS Estimation of SSPA NonLinearity in Mobile OFDM Systems
(20020501)Several LUTbased predistortion schemes using Saleh's model of traveling wave tube (TWT) HPA for compensation of RF nonlinearity in various systems have been studied recently. In this paper we propose a novel parameterbased ... 
Novel dualVth independentgate FinFET circuits
(00011030)This paper describes gate work function and oxide thickness tuning to realize novel circuits using dualVth independentgate FinFETs. DualVth FinFETs with independent gates enable series and parallel merge transformations ... 
Novel SortFree Detector with Modified RealValued Decomposition (MRVD) Ordering in MIMO Systems
(20081101)Kbest MIMO detection technique is the prominent method of simplifying the detection complexity in MIMO systems while maintaining BER performance comparable with the optimum maximumlikelihood (ML) detection technique. ... 
Novel symmetric and asymmetric plasmonic nanostructures
(2010)Metaldielectric nanostructures capable of supporting electromagnetic resonances at optical frequencies are the vital component of the emerging technology called plasmonics. Plasmon is the electromagnetic wave confined at ... 
A Nucleic Acid Test to Diagnose Cryptosporidiosis: Lab Assessment in Animal and Patient Specimens
(2014)Diarrheal diseases cause more morbidity and mortality around the world than HIV, malaria or tuberculosis. Given that effective treatment of persistent diarrheal illness requires knowledge of the causative organism, diagnostic ... 
Numerical Accuracy and Hardware Tradeoffs for CORDIC Arithmetic for SpecialPurpose Processors
(19930720)The coordinate rotation digital computer (CORDIC) algorithm is used in numerous specialpurpose systems for realtime signal processing applications. It is desirable to use fixedpoint CORDIC units in such systems, since ... 
Numerical application of concepts from confocal microscopy to holography and other coherent imaging systems
(1994)A novel methodology based on the scanning confocal microscope is presented which enables a general solution of the depth resolution problem in holography and other coherent imaging schemes. The method does not depend on a ... 
Numerical calculation of interaction forces between paramagnetic colloids in twodimensional systems
(2014)Typically the force between paramagnetic particles in a uniform magnetic field is described using the dipolar model, which is inaccurate when particles are in close proximity to each other. Instead, the exact force between ... 
Numerical Estimates of Generalized Dimensions D_q for Negative q
(19960101)Usual fixedsize boxcounting algorithms are inefficient for computing generalized fractal dimensions D(<i>q</i>) in the range of <i>q</i><0. In this Letter we describe a new numerical algorithm specifically devised to ...