TO
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 76 |
 | Mathews, V. John | Volterra and general polynomial related filtering | This paper presents a review of polynomial filtering and, in particular, of tlie truncated Volterra filters. Following the introduction of the general properties of such filters, issues such as eficieiit realizations, design, adaptive algoritlims and stability are discussed. | 1993 | |
| 77 |
 | Harrison, Reid R. | Sweep strategies for a sensory-driven, behavior-based vacuum cleaning agent | In the Machine Intelligence Laboratory, University of Florida, we have built a small autonomous robot and programmietd to exhibit various reactive behaviors.T he robot, namedG ator,p erformsa rea coveragein an interior room by combining distinct behaviors. Gator has 26 sensors of which only 7 are... | Sweeping behavior; Claustrophobia | 1993-01-01 |
| 78 |
 | Stringfellow, Gerald B. | Control and characterization of ordering in GaInP | Gae,,In,,P layers have been grown by organometallic vapor phase epitaxy on GaAs substrates with [llO]-oriented grooves on the surface that have an important effect on the formation of Cu-Pt ordered structures during growth. In this work, the groove shape is demonstrated to be critically important... | Vapor phase epitaxy; Ordered structure; Cathodoluminescence spectroscopy | 1993-06-28 |
| 79 |
 | Furse, Cynthia M.; Gandhi, Om P. | A simple convolution procedure for calculating currents induced in the human body for exposure to electromagnetic pulses | Abstract-The finite-difference time-domain (FDTD) and frequency dependent finite difference time-domain (FD)2TD methods have been previously used to calculate internal electric (E) fields and induced currents for exposure of the anatomically based model of the human body to electromagnetic pulses (E... | 1994 | |
| 80 |
 | Stringfellow, Gerald B.; Sadwick, Laurence P. | Low pressure pyrolysis of alternate phosphorus precursors for chemical beam epitaxial growth of InP and related compounds | The most widely used phosphorous source in chemical beam epitaxy (CBE) is phosphine (PH3). However, because it is highly toxic, alternatives to phosphine have been sought for the growth of phosphorous-containing compounds. We have investigated the pyrolysis rates and reaction products, in low pres... | Chemical Beam Epitaxy; CBE | 1994 |
| 81 |
 | Stringfellow, Gerald B. | Effects of substrate misorientation and growth rate on ordering in GaInP | Epitaxial layers of Ga,Tn,_,P with 1=0.52 have been grown by-organometallic vapor-phase apitaxy on GaAs substrates misoriented from the (001) plane in the [ 1 IO] direction by angles 6,) of O", 3", 6", and 9". For each substrate orientation growth rates rg of 1, 2, and 4 pm/h have been used. The ... | Transmission electron diffraction; Dark-field imaging; Photoluminescence | 1994 |
| 82 |
 | Stringfellow, Gerald B. | InAsSbBi alloys grown by organometallic vapor-phase epitaxy | Provides information on a study on the growth of InAsSbBi alloys by organometallic vapor-phase epitaxy. Experiment; Results and discussion; Conclusion. | Alloys; Epitaxy; Organometallic Compounds | 1994 |
| 83 |
 | Mathews, V. John | Lattice algorithms for recursive least squares adaptive second-order volterra filtering | This paper presents two computationally efficient recursive least-square (RLS) lattice algorithms for adaptive nonlinear filtering based on a truncated second-order Volterra system model. The lattice formulation transforms the nonlinear filtering problem into an equivalent multichannel, linear filte... | 1994 | |
| 84 |
 | Stringfellow, Gerald B. | Control of ordering in Ga0.5In0.5P using growth temperature | The kinetic processes leading to ordering in Gas,, In o.4P8 have been studied by observing the effects of substrate misorientation (O-9), growth rate (0.1-0.5), and substrate temperature (570- 670 "C) during growth. The ordered structure and degree of ordering are determined using transmission elec... | Ordering Structure; Growth Temprature; Growth Rate | 1994 |
| 85 |
 | Mathews, V. John | Adaptive bilinear predictors | This paper considers an extended recursive least squares (RLS) adaptive bilinear predictor. It is shown that the extended RLS adaptive bilinear predictor is guaranteed to be stable in the sense that the time average of the squared a-posteriori prediction error signal is bounded whenever the input... | 1994 | |
| 86 |
 | Stringfellow, Gerald B. | Kinetically controlled order/disorder structure in GaInP | A Ga0.52In0.58p order/disorder heterostructure having a band-gap energy difference exceeding 160 meV has been grown by organometallic vapor phase epitaxy. The two layers were grown on a nominally (OOl)-oriented GaAs substrate misoriented by 3° toward the [110] direction in the lattice. The disorder... | Indium phosphides; Gallium Phosphides; Heterojunctions | 1994 |
| 87 |
 | 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 | |
| 88 |
 | Mathews, V. John | A stability condition for certain bilinear systems | Abstract-This correspondence derives a simple sufficient condition for the output of a discrete-time, time-invariant bilinear system to be bounded whenever the input signal to the system is bounded by a finite constant. | 1994 | |
| 89 |
 | Mathews, V. John | A stability result for RLS adaptive bilinear filters | Abstract- This letter considers recursive least squares (RLS) adaptive nonlinear filtering using bilinear system models. It is shown that the extended RLS adaptive bilinear filter, as well as the equation-error RLS adaptive bilinear filter, are guaranteed to be stable in the sense that the time aver... | 1994 | |
| 90 |
 | Harrison, Reid R. | Mobile robot navigation in enclosed large-scale space | In a large-scale s ace, navigation may occur among very dispersed landmarks, further apart than the range of sensing of an autonomous vehicle. In this work we investigate the feasibility of construction of a landmark-based cognitive map, whose elements are the obstacles perceived by a robotic vehicl... | 1994-01-01 | |
| 91 |
 | Furse, Cynthia M.; Gandhi, Om P. | Use of the frequency-dependent finite-difference time-domain method for induced current and SAR calculations for a heterogeneous model of the human body | This paper describes the use of the previously for mutated Frequency-Dependent Finite-Difference Time-Domain ((FD)2TD) method for analysis of an anatomically based heterogeneous man model exposed to ultra-wide-band electromagnetic pulse sources. The human tissues' electrical permittivities, ε*(ω),... | Finite-difference time-domain; FDTD; Ultrawideband electromagnetic pulses; Induced currents; Mass-normalized; Energy distribution; Specific absorption rates; SAR | 1994-01-01 |
| 92 |
 | Furse, Cynthia M.; Gandhi, Om P. | Simple convolution procedure for calculating currents induced in the human body for exposure to electromagnetic pulses | The finite-difference time-domain (FDTD) and frequency dependent finite difference time-domain (FD)2TD methods have been previously used to calculate internal electric (E) fields and induced currents for exposure of the anatomically based model of the human body to electromagnetic pulses (EMPs) and... | Frequency dependent finite difference time-domain; Finite-difference time-domain; FDTD; Electric fields; Induced current; Electromagnetic pulses; Continuous wave sinusoids | 1994-07 |
| 93 |
 | Mathews, V. John | Orthogonalization of correlated gaussian signals for volterra system identification | This letter presents a simple method for orthogonalizing correlated Gaussian input signals for identification of truncated Volterra systems of arbitrary order of nonlinearity P and memory length N. The procedure requires a Gram-Schmidt orthogonalizer for a vector containing N elements and some nonli... | 1995 | |
| 94 |
 | Mathews, V. John | Output-error LMS bilinear filters with stability monitoring | ABSTRACT This paper introduces output-error LMS bilinear filters with stability monitoring. Bilinear filters are recursive nonlinear systems that belong to the class of polynomial systems. Because of the feedback structure, such models are able to represent many nonlinear systems efficiently. ... | 1995 | |
| 95 |
 | Mathews, V. John | Massively parallel algorithm for vector quantization | This paper is concerned with the parallel implementation of a vector quantizer system on Maspar MP-2, a single-instruction, multiple-data (SIMD) massively parallel computer. A vector quantizer (VQ) consists of two mappings: an encoder and a decoder. The encoder assigns to each input vector the inde... | 1995 | |
| 96 |
 | Mathews, V. John | Vector quantization of images using the L∞ distortion measure | This paper considers vector quantization of signals using the Loo distortion measure. The key contribution is a result that allows one to characterize the centroid of a set of vectors for the Loo distortion measure. A method similar to the LBG algorithm for designing codebooks has been develope... | 1995 | |
| 97 |
 | Mathews, V. John | An optimal design procedure for intraband vector quantized subband coding | AbstTact- Subband coding with vector quantization is addressed in this paper. Forming the data vectors from both between and within the subbands is considered. The former of these two schemes is referred to as interband coding and the latter as intraband coding. Interband coder design is relatively ... | 1995 | |
| 98 |
 | Stringfellow, Gerald B. | Surface photo-absorption studies of the chemical structure of GaInP grown by organometallic vapor phase epitaxy | The surface structure of Ga0.52In0.48P was studied by surface photoabsorption. An absorption peak due to P dimers on Ga0.52In0.48P was observed at 400 nm, shorter than for InP (430 nm). From comparison with results for GaAs and InP, the data are interpreted to indicate that at a tertiarybutylphos... | Absorption peak; Ordering; Substrate orientation | 1995 |
| 99 |
 | Myers, Chris J. | Technology mapping of timed circuits | Abstract This paper presents an automated procedure for the technology mapping of timed circuits to practical gate libraries. Timed circuits are a class of asynchronous circuits that incorporate explicit timing information in the specification which is used throughout the design process to optimi... | 1995 | |
| 100 |
 | Stringfellow, Gerald B.; Williams, Clayton C. | Atomic ordering of GaInP studied by Kelvin probe force microscopy | The atomic ordering of GaInP has been established and studied by a variety of methods, including transmission electron microscopy, cathodoluminescence, and photoluminescence. In this work, a Kelvin probe force microscope _x0002_KPFM_x0003_ has been employed to image several GaInP samples previous... | Cathodoluminescence; Photoluminescence; Surface morphology | 1995 |