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 70 for “"Calibration Methods"”.
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Deterministic sensor calibration methods for distributed inertial navigation systems
This Thesis was approved for publication on 2022-07-22 at 13:21.
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Micron precision calibration methods for alignment sensors in particle accelerators
… fields and cannot be returned for check and calibration to the manufacturer once exposed to radiation. In order to validate the sensors before their installation in the tunnel, to check them within their measurement system and for check and calibration after use, a series of tests have been …
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Calibrating the Hurst Parameter for Rough Volatility Models with Application in the South African Market
It is known that accurate and efficient calibration of any fractional stochastic volatility model is important for trading and risk management purposes. Under the rough Heston model proposed by El Euch et al. (2019), the Hurst parameter governs the roughness of the volatility process. This …
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METHOD DEVELOPMENT OF STANDARD DILUTION ANALYSIS ON MOLECULES AND DISSOLUTION STUDIES OF IBUPROFEN TABLETS ALONG WITH COMMON BEVERAGE CONSTITUENTS
… rate of ibuprofen. Results using the external calibration method produced a dissolution rate of ibuprofen that decreased 4% in the presence of ascorbic acid and increased 1% in the presence of caffeine. Figures of merit using current calibration methods such as external calibration method, …
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Using magneto-inertial-measurement-units to track upper-limb movement during rehabilitation
… coordinate frame. Therefore, appropriate calibration must be performed to obtain the relationship between each sensor frame and its corresponding body-segment anatomical frame.While many papers have been published on anatomical calibration methods for MIMUs, there has been no comprehensive …
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Improving the Metrological Traceability of Online Dry Grammage Measurement Used in the Paper Industry
… on average approximately 85% with traceable calibration methods. Moreover, a novel method was created for the simultaneous grade specific calibration of these measurements by applying machine reel sampling and traceable sample area measurement. It was demonstrated that a relative uncertainty …
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Hardware and software architecture for non-contact, non-intrusive load monitoring
… fields surrounding a multi-conductor cable, calibration methods to noninvasively determine a mapping from the sensed fields to power transmission, and a software framework that enables efficient real-time processing of data gathered by the new electromagnetic field sensors.
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Sampled ancestors and dating in Bayesian phylogenetics
… is not negligible among fossil taxa and the methods that use fossils to date phylogenies should account for this. In this thesis, I develop a Bayesian Markov chain Monte Carlo framework for inferring sampled ancestor phylogenies, investigate properties of the sampled ancestor tree space, test …
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MULTIVARIATE CALIBRATION FOR ICP-AES
… the application of univariate and multivariate calibration methods for the prediction of Pt, Pd, and Rh in acid-digested and of Au, Ag and Pd in fusion-digested autocatalyst samples. Of all the univariate calibration methods investigated matrix matching proved the most accurate method with …
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Weigh-in-Motion Auto-Calibration Using Automatic Vehicle Identification
… accurate data. After initial installation and calibration, WIM systems may experience measurement drifts in weight and axle detection. Recalibration takes two general forms: (a) On-site calibration involving running trucks of known weight over WIM scales and (b) Auto-calibration methods …
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Analysis of equity and interest rate returns in South Africa under the context of jump diffusion processes
… be calibrated. This dissertation tackles this calibration issue by considering the basic jump diffusion model of Merton (197G) applied to South African equity and interest rate market data. As there is little access to frequently updated volatility surfaces and option price data in South …
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Design of an ultraviolet absorption spectroscopy oil concentration sensor for online HVAC measurements
… hardware, the analytical modeling, and the calibration methods to build and operate the OCR sensor.
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An Iterative Technique for Instrument Transformer Calibration and Line Parameter Estimation with Synchrophasor Measurements
… thesis, the questions of instrument transformer calibration and transmission line parameter estimation have been examined. With synchrophasors offering real-time data for analysis, a solution to each individual problem seems feasible. A quandary however arises due to the fact that calibration …
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Sequential Calibration of Asset Pricing Models to Option Prices
This paper implements four calibration methods on stochastic volatility models. We estimate the latent state and parameters of the models using three non-linear filtering methods, namely the extended Kalman filter (EKF), iterated extended Kalman filter (IEKF) and the unscented Kalman filter (UKF). …
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Sequential learning, large-scale calibration, and uncertainty quantification
… methodologies in sequential learning, model calibration, and uncertainty quantification for heteroskedastic computer experiments and large-scale computer experiments. For heteroskedastic computer experiments, an optimal lookahead based sequential learning strategy is presented, balancing …
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Antennenkonfigurationen und Kalibrierungskonzepte für die Realisierung reziproker Mehrantennensysteme
… channel, including antennas and transceivers, a calibration of the system is necessary. Therefore different calibration methods are developed and evaluated. At least the calibration of that side, which uses the transmit filter, is required. It is shown, that on realistic conditions the …
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Person tracking in 3D using Kalman filtering in single and multiple camera environments
… coordinate system. We investigate some practical methods of obtaining this calibration information without laying out and measuring calibration markers. Both tracking and calibration methods were tested extensively using 6 different single and multiple camera test sequences. The system is able to …
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Online Raman spectroscopy for bioprocess monitoring
… repeatability and throughput for offline and calibration methods was developed accordingly. The theoretical and experimental ground work for developing a correction for spectrum distortions caused by elastic scattering, a fundamental problem for many spectroscopic applications, was laid out. …
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Gene transfer history of carbon fixation proteins constrains marine cyanobacteria divergence times
… integrates gene transfer with molecular clock calibration methods to determine divergence times. Accordingly, I evaluate the relationship between atmospheric evolution and the ecology of important groups of phototrophs.
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