Filters: Publication Type:"journal article" Collection:"ir_uspace" Type:"Text" Department:"Electrical & Computer Engineering"
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 1 |  | Venkatesh, Suresh | W-band sparse synthetic aperture for computational imaging | We present a sparse synthetic-aperture, active imaging system at W-band (75 - 110 GHz), which uses sub-harmonic mixer modules. The system employs mechanical scanning of the receiver module position, and a fixed transmitter module. A vector network analyzer provides the back end detec... | 2016-04-08 | |
| 2 |  | Furse, Cynthia M. | Non-destructive fault location on aging aircraft wiring networks, Part 2- live wires in flight | Aging aircraft wiring has been identified as an area of critical national concern. As the system ages, the wires become brittle and crack, break, or develop short circuits. Short circuits, in particular, have been implicated in a variety of smoke incidents, in-flight fires, and crashes. Some of thes... | 2003-01-01 | |
| 3 |  | Mathews, V. John | Parallel-cascade realizations and approximations of truncated volterra systems | This paper introduces parallel-cascade realizations of truncated Volterra systems with arbitrary, but finite order of nonlinearity. Parallel-cascade realizations implement higher-order Volterra systems using parallel and multiplicative combinations of lower-order Volterra systems. Such realizations ... | 1996-01-01 | |
| 4 |  | Stevens, Kenneth | Enhanced SDC support for relative timing designs | 2009-01-01 | ||
| 5 |  | Mathews, V. John | On the inversion of certain nonlinear systems | In this letter, we present some theorems for the exact inversion and the pth-order inversion of a wide class of causal, discrete-time, nonlinear systems. The nonlinear systems we consider are described by the input-output relationship y(n) = g[x(n)]h[x(n-1); (n-1)]+f[x(n-1); y(n-1)], here g[], h[; ]... | 1997-01-01 | |
| 6 |  | Mathews, V. John | Perceptually lossless image compression | This paper presents an algorithm for perceptually lossless image compression. A compressed image is said to be perceptually lossless for a specified viewing distance if the reconstructed image and the original image appear identical to human observers when viewed from the specified distance. Our app... | 1998-01-01 | |
| 7 |  | Blair, Steven | Plasmonic coupling effect in Ag nanocap-nanohole pairs for surface-enhanced Raman scattering | A plasmonic coupling structure composed of Ag nanocap-nanohole pairs was fabricated through a novel and facile method. Both surface-enhanced Raman scattering (SERS) measurements and numerical simulations show that the cap-hole system produces much larger electric field enhancement and SERS signal th... | 2012-01-01 | |
| 8 |  | Rieth, Loren W | Plasma-assisted atomic layer deposition of Al2O3 and parylene C bi-layer encapsulation for chronic implantable electronics | Encapsulation of biomedical implants with complex three dimensional geometries is one of the greatest challenges achieving long-term functionality and stability. This report presents an encapsulation scheme that combines Al2O3 by atomic layer deposition with parylene C for implantable electronic sys... | 2012-01-01 | |
| 9 |  | Myers, Chris J. | Poster abstract: methods and tools for verification of cyber-physical systems | As chip technology scales, it is becoming possible to integrate multiple cores on a single chip which communicate using a network-on-chip (NoC) paradigm. One CPS application area that can leverage this is in automotive electronic systems which often require more than 50 electronic control units (ECU... | 2012-01-01 | |
| 10 |  | Rieth, Loren W | Excimer-laser deinsulation of Parylene-C coated Utah electrode array tips | Utah electrode arrays (UEAs) are highly effective to measure or stimulate neural action potentials from the central or peripheral nervous system. The measured signals can be used for applications including control of prosthetics (recording) and stimulation of proprioceptive percepts. The UEAs are co... | 2012-01-01 | |
| 11 |  | Khan, Faisal Habib | A low-cost non-mechanical maximum power point tracking scheme for grid-tied single-phase induction generators | A new configuration of a single-phase induction generator based power generation system with maximum power point tracking capability is proposed in this paper, and this configuration is suitable for small-scale variable speed wind energy conversion system. Using this technique, the synchronous speed... | 2012-01-01 | |
| 12 |  | Khan, Faisal Habib | AC solar cells: An embedded "all in one" PV power system | Power converters constructed from discrete components are difficult to mass produce, and the installation involves a significant labor cost to have the proper interconnection among the panel, inverter and the grid. These facts indicate that the present PV technology may not be able to address the ch... | 2012-01-01 | |
| 13 |  | Furse, Cynthia M. | Measurement and modeling of interference for multiple antenna system | This paper provides a detailed signal model based on network theory to predict the multi-antenna capacity in the presence of co- and adjacent channel interference. This model expands on previous channel models by including the simultaneous effects of interference, antenna matching, efficiency, direc... | 2010-01-01 | |
| 14 |  | Khan, Faisal Habib | Interconnection and optimization issues of multijunction solar cells - A new mitigation approach using switching power converters | A multijunction solar cell can extract higher solar energy compared to a single junction solar cell using the spectrum splitting technique. Extensive research on efficiency enhancement of the solar cells to achieve near theoretical limit is in place. However, there are limited research activities to... | 2012-01-01 | |
| 15 |  | Stringfellow, Gerald B. | Simulation of self-assembled compositional core-shell structures in In xGa 1-xN nanowires | We report the simulation of compositional core-shell structure formation in epitaxial InGaN nanowires (NWs) and its dependence on kinetic growth mode and epitaxial relation to substrate, based on atomistic-strain-model Monte Carlo simulations. On a lattice mismatched substrate, the layer-by-layer gr... | 2012-01-01 | |
| 16 |  | Harrison, Reid R. | Polymer based thin film coils as a power module of wireless neural interfaces | For the conventional Utah Electrode Array (UEA) to be able to function without transcutaneous wire connections, a kind of power source is needed in an integrated form with the UEA. To develop such wireless neural interfaces, inductive coupling between two coils was used to deliver power to the integ... | Wireless; Neural interfaces; Thin film coils; Utah Electrode Array | 2006 |
| 17 |  | Stevens, Kenneth | The post office experience: designing a large asynchronous chip | The Post Office is an asynchronous, 300,000 transistor, full-custom CMOS chip designed as the communication component for the Mayfly scalable parallel processor. Performance requirements led to the development of a design style which permits the design of sequential circuits operating under a rest... | 1993 | |
| 18 |  | Harrison, Reid R. | Power minimization of a 433-MHz LC VCO for an implantable neural recording system | This paper presents a new random-search based integrated inductor optimization algorithm. The algorithm provides the designer with valuable information about design tradeoffs. it is used to design an inductor to minimize power dissopation in an LC VCO. The measured results show that a 53:1 power sav... | 2006 | |
| 19 |  | Harrison, Reid R. | Power, clock, and data recovery in a wireless neural recording device | For many medical applications, neural recording systems should be fully implantable. Transcutaneous wires must be compleley eliminated, and this necessitates the wireless transfer of power, clock and configuration data to the device. We have developed, fabricated, and tested cirucits that recover po... | 2006 | |
| 20 |  | Stevens, Kenneth | Practical verification and synthesis of low latency asynchronous systems | A new theory and methodology for the practical verification and synthesis of asynchronous systems is developed to aid in the rapid and correct implementation of complex control structures. Specifications are based on a simple process algebra called CCS that is concise and easy to understand and use.... | 1994 | |
| 21 |  | Furse, Cynthia M. | Predicted MIMO performance in intra-vehicle channels | Wireless sensor networks inside vehicles face particularly harsh multipath and shadowing constraints. The closed or semi-closed metallic structure functions much like a reverberation chamber, but with some regions shielded from other regions. Vehicles (particularly aircraft) often have extremely hig... | 2008-07 | |
| 22 |  | Mathews, V. John; Varner, Michael W.; Clark, Edward B. | Prediction of pregnancy-induced hypertension using coherence analysis | ABSTRACT This paper presents a novel method to predict hypertensive disorders in pregnancy using coherence analysis. Previous studies suggest that there is inadequate secondary trophoblast invasion in hypertensive pregnancies implying that there are differences in the functional relationships betwe... | 2004 | |
| 23 |  | Mathews, V. John | Predictive vector quantization of images using a constrained two-dimensional autoregressive predictor | A novel approach to image compression using vector quantization of linear (one-step) prediction errors is presented in this paper. In order to minimize the image reconstruction error, we choose the optimum predictor coefficients (in a least-squares sense) that satisfy the additional constraint that ... | 1987 | |
| 24 |  | Harrison, Reid R.;Normann, Richard A. | Preliminary study of thermal impact of a microelectrode array implanted in the brain | One requirement of a chronically implantable, wireless neural interface device is the integration of electronic circuitry with the microelectrode array. Since the electronic IC dissipates a certain amount of power, it will affect the temperature in the tissues surrounding the implant site. In this ... | Microelectrode arrays; Neural recording; Utah Electrode Array; Thermal impact | 2006-08 |
| 25 |  | Tasdizen, Tolga | Principal components for non-local means image denoising | This paper presents an image denoising algorithm that uses principal component analysis (PCA) in conjunction with the non-local means image denoising. Image neighborhood vectors used in the non-local means algorithm are first projected onto a lower-dimensional subspace using PCA. Consequently, neigh... | 2008 |