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.
Results
Showing 1 to 10 of 10 for “"Equivalent source"”.
-
Analysis and simulation of dynamics of spacecraft power systems
… dynamic behavior for each mode of operation. The equivalent source and load characteristics of a solar array power system with a constant-power load, shunt regulator, battery charger and discharger, are identified to predict large-signal dynamic behavior. Employing the equivalent source and load, …
-
Modular Approach for Characterizing and Modeling Conducted EMI Emissions in Power Converters
… converters. A modular-terminal-behavioral (MTB) equivalent EMI noise source modeling approach is proposed. This work is the first to systematically develop a 3-terminal EMI noise source model for a switching phase-leg device module. Each module is modeled as pairs of equivalent noise current …
-
Efficient modeling of sound source radiation in free-space and room environments
… to develop efficient acoustics simulations for sources in different room environments, a modeling procedure has been proposed that consists of two steps in general: (1) the modeling of the free-space radiation of the source based on measurements in a anechoic environment, and (2) the prediction …
-
Methods for addressing noise and error in controlled source electromagnetic data
Controlled source electromagnetic geophysical surveys are excellent ways to obtain information about the conductivity structure of the earth, with applications including hydrocarbon and mining prospecting, hydrogeophysical detection and monitoring, and civil and archaeological studies. Invariably, …
-
Development of a Computationally Efficient Binaural Simulation for the Analysis of Structural Acoustic Data
… Transfer Functions (HRTFs) to each of the sources, a binaural simulation of this type can be created. Unfortunately, this simulation method requires an extensive amount of computer power and speed for real-time simulation, more so than is available with current technology. The objective of …
-
Validation of a 3-D Virtual Acoustic Prototyping Method For Use In Structural Design
… thesis uses finite element modeling (FEM), the equivalent source method (ESM), and head-related transfer functions (HRTFs). A tradeoff exists between the accuracy of the auralization process and the number of equivalent sources (and thus computational power) that are required. The goal of this …
-
A diffraction integral based turbomachinery noise shielding method
… barrier shielding method, are limited in their source and geometry definitions. The diffraction integral method is a simplified ray tracing method capturing edge diffracted rays. Creeping rays and reflected rays are not accounted for making the method suitable for flat geometries with sharp …
-
Next-generation, phasor-based distance relay with fault-path resistance immunity
… advantage is that knowledge of the system equivalent source impedance is not required. While knowledge of the distribution factor phase angle, parallel line zero-sequence current, and parallel line zero-sequence impedance are not required, in the event that they are available, the relay can …
-
Visual Transfer Learning in the Absence of the Source Data
… aims at transferring the knowledge from a source visual task to a target visual task. Typically, the target task is related to the source task, and the training data in the target task is relatively small. In visual transfer learning, the majority of existing methods assume that the source …
-
Implementing and testing a panel-based method for modeling acoustic scattering from CFD input
… or TD-BEM, (sometimes referred to in terms of source panels) is proposed and developed that takes advantage of and offers beneficial effects for the substantial planar components of the aircraft carrier deck environment and uses pressure gradients as its input. This method is applied to and …