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 19 of 19 for “"Automatic Calibration"”.
-
Sensitivity-based guided automatic calibration of hydrological models
A new method for efficient calibration of complex hydrological models that combines Dynamically Dimensioned Search (DDS) global optimization algorithm with Global Sensitivity Analysis (GSA) methods is introduced. This approach, which is called sensitivity-informed DDS, utilizes sensitivity indices …
-
Automatic calibration of modulated fractional-N frequency synthesizers
… Specifically, a technique for in service automatic calibration of a modulated phase locked loop (PLL) frequency synthesizer has been developed. Phase/frequency modulation is accomplished by modulating the feedback divide value in a phase locked loop frequency synthesizer. A digital …
-
Automatic calibration of an urban microclimate model under uncertainty
… of real-world systems. Thus, model calibration and uncertainty analysis hold a particular interest, and it is necessary to evaluate to what degree simulation models are imperfect before implementing them during the decision-making process. In contrast to the extensive literature on …
-
Physics and Algorithms in Time of Flight Based Computational Imaging
… explore this design philosophy in 2 problems; automatic calibration of cameras that can see around corners, high resolution optical measurement of ultrasound. I will utilize advanced electronics hardware like femtosecond lasers, and Single Photon Avalanche Photodiode(SPAD) detectors for the …
-
Calibração automática de modelos tipo chuva-vazão utilizando técnicas de suavização: uma aplicação ao modelo SMAP-II
Parameter calibration is a critical, but essential step in Hydrologic Modelling. In this way, some optimization algorithms for automatic calibration have been applied to conceptual Rainfall-Runoff modelling, but several problems have been detected, which have motivated many researches. This work …
-
Análise e superação de algumas dificuldades na calibração automática do modelo SMAP-II - versão suavizada
… there are parameters estimated by manual or automatic calibration. The calibration is one of the most difficult and arduous phases in the simulation process. This work analyses the difficulties encountered in the automatic calibration of the SMAP-II model, smoothing version. A possible …
-
Comparação de dois métodos de otimização em modelos hidrológicos do tipo chuva-vazão
… in the estimation of parameters. The automatic calibration using optimization algorithms has been a valuable alternative instrument due to the efficiency in the calibration process and the quality obtained in the performance of present comparative studies of two different conceptual …
-
Control Structures for Low-Emission Combustion in Multi-Cylinder Engines
… control was proven to be a powerful tool for automatic calibration in a laboratory setting. In a direct injection engine, LQG controllers were designed to optimize an emissions trade-off cost function during transients. Experiments were performed on a six-cylinder heavy-duty engine, and …
-
Computer-based decision-support methods for hydrological ecosystem services management
… sensitive model parameters in a multi-objective automatic calibration scheme using multi-objective particle swarm optimization (MOPSO). Multiple alternative watershed-scale BMP designs (parallel terraces, detention/infiltration ponds, field borders, and grade stabilization structures) that help …
-
Strategies towards high performance (high-resolution/linearity) time-to-digital converters on field-programmable gate arrays
… indriver-less vehicles. Using the proposed new calibration method, the resolution is adjustable (50, 80, and 100 ps), and the linearity is exceptionally high (INL pk-pk and INL pk-pk are lower than 0.05 LSB). Meanwhile, a software tool has been open-sourced with a graphic user interface (GUI) to …
-
The role of attention-deficit/hyperactivity disorder and parental misperceptions in risk for child physical abuse
… These threshold values have to be automatically updated for integrating dynamic behavioral changes of the communicating parties. For updating these threshold values, I propose an automatic calibration mechanism using receiver operating characteristics curves (ROC). The VSD and ND …
-
System and Methods for Detecting Unwanted Voice Calls
… These threshold values have to be automatically updated for integrating dynamic behavioral changes of the communicating parties. For updating these threshold values, I propose an automatic calibration mechanism using receiver operating characteristics curves (ROC). The VSD and ND …
-
DESIGNING WATERSHED-SCALE STRUCTURAL BEST MANAGEMENT PRACTICES USING EVOLUTIONARY ALGORITHMS TO ACHIEVE WATER QUALITY GOALS
… and sediment yields from the watershed. An automatic calibration model using a genetic algorithm that optimizes the parameter values has been used. In addition, an uncertainty analysis of these selected parameters has been conducted to analyze the robustness of the model's predictions. Both …
-
Modelling of Subsidence in Geothermal Fields
… elastic constants and elasto-plastic parameters. Calibration of the reservoir model and geomechanics model was achieved by matching the models output to the measured pressure profiles and subsidence history at a few representative points. Automatic calibration with PEST was used in calibrating the …
-
Autonomous machine vision for off-road vehicles in unstructured fields
Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2009-11-23T22:49:28Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Wang_Qi.pdf: 4053834 bytes, checksum: 1815ebd53b3114955aa9e716b10fba3e (MD5) Wang_Qi.doc: 7308288 bytes, checksum: …
-
Parameter estimation of urban drainage models
… physically, have to be estimated through model calibration. Model calibration is done through an iterative process by comparing model predictions with observations, until the two sets match with each other within a reasonable accuracy. There are several methods available to calibrate …
-
Pronóstico probabilístico de caudales de avenida mediante redes bayesianas aplicadas sobre un modelo hidrológico distribuido
… through parameters that are adjusted by calibration processes, which usually give as result a fixed value for each parameter. This approach will make simulations with the mean basin behaviour from all observed behaviours. Rainfall-runoff model parameters have been characterized by …