Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 32 for “"averaging technique"”.
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Existence and stability analysis of ferroresonance using the generalized state-space averaging technique
… problem is the generalized state-space averaging technique. Both single-phase and three-phase ferroresonance are considered. Appropriate models are developed for the single phase and three-phase power distribution transformers which are suitable for the study of the ferroresonance …
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High-Resolution Nyquist -Rate Analog -to -Digital Converter
… converter (ADC) employing a capacitor error-averaging technique with look-ahead decision and digital error correction concepts that has been implemented in a CMOS technology to achieve high linearity and high speed. The capacitor error-averaging technique can perform an accurate …
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X-ray periodicities in sources observed by the RXTE ASM
… resulting power density spectrum using a local averaging technique. A power threshold was set to determine the statistical significance of a peak in the power density spectrum. The search verified the orbital frequencies of four known X-ray binaries and also identified four previously unreported …
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Estimation of run times in a freight rail transportation network
… is compared against a baseline simple historical averaging technique for a two year period of actual train operational data. The proposed regression model, though subject to specific limitations, offers substantial improvements in accuracy over the baseline technique and is recommended as …
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An improved switching converter model
… mode and discontinuous mode has been done by averaging and discrete-sampling techniques. The averaging technique is simple to use and averages the output voltage. The discrete technique is very complex and cumbersome, but accurately predicts the envelope of the output voltage. A new model is …
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Pose Estimation and 3D Bounding Box Prediction for Autonomous Vehicles Through Lidar and Monocular Camera Sensor Fusion
… to improve feature extraction capabilities. The averaging technique is used on output of these sensors to get the final bounding box. The experimental results demonstrate that the ResNet-101 based model outperforms the VGG-19 based model in terms of accuracy and robustness. This study provides …
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DETECTING DELAY ANOMALIES INTRODUCED BY HARDWARE TROJANS USING CHIP AVERAGING AND AN ON-CHIP HIGH RESOLUTION EMBEDDED TEST STRUCTURE
… calibration method for the TDC as well as a chip-averaging technique are demonstrated to nearly eliminate chip-to-chip and within-die process variation effects on the measured path delays across chips, which simplifies the process and enhances the effectiveness of a simulation-based golden model. …
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Performance of cooperative space time coding with spatially correlated fading and imperfect channel estimation
… expurgated union bound using the limiting before averaging technique given the estimated channel gains is then obtained. Although this assumption is not strictly valid, simulation results show that the bound is accurate in estimating the diversity order as long the channel estimation is not very …
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Real time defect detection in welds by ultrasonic means
… also introduce noise into signals. The signal averaging technique and statistical analysis based on B-scan data have proved their feasibility to increase 'signal to noise ratio' effectively and to judge or assess weld defects. The hardware and the software for the system is explained in this …
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The nonlinear Schroedinger limit of the complex Ginzburg-Landau equation.
… under periodic boundary conditions. Using an averaging technique which is similar to a Melnikov method for pde's, necessary conditions are derived for the persistence of NLS solutions under the CGL perturbation. For the traveling wave solutions, these conditions are derived for a general …
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Multi-baseline interferometric synthetic aperture radar applications and error analysis
… in details. An optimal baseline-weighted height averaging technique is introduced. Phase averaging, a novel height retrieval technique, combines the multi-baseline phase data into one, such that only one set of heights is retrieved from the three-satellite configuration. This approach outperforms …
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Radio frequency interference (RFI) modeling of complex modules in mobile devices and system-level modeling for transient ESD simulation
… in mobile devices.</p> <p>In the first paper, an averaging technique is developed, for phase resolved scanning over random fields generated by multiple uncorrelated stochastic sources. This method can separate the field contribution of each noise source and resulting field patterns as if the …
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Passive microwave and hyperspectral infrared retrievals of atmospheric water vapor profiles
… the training data and the flight data. A noise-averaging technique achieved robustness in exchange for a degradation in sensitivity of the retrieval algorithms. Robustness was demonstrated by the retrieval agreement between the microwave and infrared instruments. The theoretical average rms …
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Analytical and numerical studies of heat and moisture transfer through porous insulation
… thermodynamic relations using a local volume averaging technique. The numerical results are compared with experimental data for five different operating conditions and for times up to 600 hours. The model predicts the temperature distribution, heat transfer rate, the total moisture gain …
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Computational Fluid Dynamics Methodologies for Simulation of Chemical Oxygen-Iodine Laser Flowfields
… for the purposes of validation using a unique averaging technique that mimics the actual physics of the experimental gain measurement. These detailed comparisons demonstrate that the simulation model accurately predicts the experimentally measured distributions, a significant result in 3-D …
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Turbulence Modeling and Simulation of Unsteady Transitional Boundary Layers and Wakes with Application to Wind Turbine Aerodynamics
… mean. Further processing the data through phase-averaging technique found phase lags along the chordwise locations and both the phase-averaged and mean profiles collapsed into the Law of Wall in the range of 0 < y+ < 50. The features of high blade loading fluctuations due to unsteadiness and …
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Particle-resolved aerosol modeling on the regional scale – insights into importance of capturing aerosol mixing state
… aerosols were quantified using a composition-averaging technique to replicate a sectional aerosol representation, which is common in many state-of-the-art chemical transport models. These errors amount up to 100% for more externally mixed populations, and can remain up to 50% for region that …
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Eavesdropping risks of the DisplayPort video interface
… by applying previously published eavesdropping techniques to DisplayPort appear as random noise, and the interface is thought to be a far more difficult target. I start by showing that DisplayPort is vulnerable to electromagnetic eavesdropping, assuming that the displayed image mainly consists …
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Numerical Constitutive Models of Woven and Braided Textile Structural Composites
… to be transversely isotropic and a stress averaging technique based on an iso-strain assumption is used to determine the effective moduli of the unit cells. Comparisons of the effective moduli are made to other unit cell models in the literature. The micromechanical models are implemented …
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Online Measurement of Three-phase AC Power System Impedance in Synchronous Coordinates
… cross-correlation and frequency domain averaging technique are used to further reduce the influence of noise. An instrument is built based on the proposed solution. A voltage source inverter is used to generate the perturbation. A PXI computer is used for real-time signal processing. A …
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