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 9 of 9 for “"time domain data"”.
-
Frequency-Domain Learning of Dynamical Systems From Time-Domain Data
… create these models. Instead, we have access to data in the form of input-output measurements. Data-driven approaches use these measurements to construct reduced order models (ROMs), a small scale model that well approximates the true system, directly from input/output data. Frequency domain …
-
Motor simulation and parameter identification in a reciprocating mechanism
… studied for the purpose of deriving simulation data for the identification of the important operating parameters in the machine. First, a modification of a motor simulation program emphasizing losses is presented. The program is used to generate dynamic motor data for an analysis of a …
-
Probing weakly bound long-range Rydberg molecules by quantum beating experiments in rubidium vapor
… in a quantum beating experiment for the first time. The experiments are conducted using parametric four-wave mixing (PFWM) in a pump-probe fashion. Fourier analysis of the time-domain data yields a spectrum on which various quantum beats are identified. Energy spacings between adjacent …
-
Non-linear Dynamic Transformer Modelling and Optimum Control Design of Switched-mode Power Supplies
… proposed transformer model are obtained using time-domain system identification based on experimental data. In order to reduce the round-of error typically occurring in the collected time-domain data, a method which is based on adjusting the value of the current sensing resistor is also …
-
A Versatile and Computationally Efficient Condition Indicator for AH-64 Rotorcraft Gearboxes
… as Asynchronous to Synchronous Energy ratio in Time domain (ASET). As the name suggests, the ASET for a component rotating at a particular speed is obtained by dividing the total energy in the raw time domain signal with the energy in the time synchronous averaged signal of the component with …
-
Construction of FASR subsystem testbed and application for solar burst trajectories and RFI study
… can be tuned across the 1-9 GHz RF band. The data are sampled with an 8-bit, 1 GHz sampling-rate digitizer, and further saved to a computer hard disk. The full-resolution time-domain data thus recorded are then correlated through offline software to provide phase and amplitude spectra. An …
-
Time domain classification of transient RFI
… become more prominent as a result. At the same time, the prevalence of RFI-generating devices has increased as new technologies have been adopted by society. Many approaches have been developed for mitigating RFI, which are typically used in concert. New telescope arrays are often built far from …
-
Addressing nonlinear systems with information-theoretical techniques
… the analysis of signals produced by that system. Time series analysis consists of a wide range of methodologies ultimately aiming at characterizing the signals and, eventually, gaining insights on the underlying processes that govern the evolution of the system. A standard way to tackle this issue …
-
X-ray microscope performance enhancement through control architecture change
… (NI) CompactRIO hardware that consists of a real-time controller, a FPGA built into the hardware chassis, analog I/O modules, and digital I/O modules. NI LabVIEW, the dedicated software to the NI hardware, was used to represent the discrete controllers as biquads structures that ran in the FPGA as …