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 11 of 11 for “"nonlinear filter"”.
-
Construction of nonlinear filter algorithms using the saddlepoint approximation
… the use of the saddlepoint method to construct nonlinear filtering algorithms. To our knowledge, while the saddlepoint approximation has been used very successfully in the statistics literature (as an example the saddlepoint method provides a simple, highly accurate approximation to the density …
-
Computer Analysis and Synthesis of a Sung Vowel
… in synthesis modeling. From these alternatives, nonlinear/filter synthesis is chosen for implementation. The methods used and problems encountered are presented in detail.
-
Nonlinear State Estimation of the Ionosphere as Perturbed by the 2017 Great American Eclipse
… of understanding of it. This study develops a nonlinear filter that estimates the state of the ionosphere's 3-D electron density profile given total electron content (TEC) measurements from dual-frequency GPS receivers located on the ground and on low-Earth-orbiting spacecraft. The electron …
-
The interplay between information and control theory within interactive decision-making problems
… to the stability of the posterior belief’s nonlinear filter. We also consider the two-agent inverse optimal control (IOC) problem, where a fixed policy satisfying certain statistical conditions is shown to be optimal for some cost function, using probabilistic matching. We provide examples …
-
A discontinuous Galerkin spectral element method compressible flow solver
… techniques, and moving-mesh capabilities. Novel nonlinear filter-based artificial viscosity methods have been developed for effective regularization of challenging scalar transport problems in high-order methods and have found application in shock-capturing for the compressible flow solver. …
-
Detection and Analysis Methods for unmanned aerial Vehicle Images
… which detects classes of objects by exploiting a nonlinear filter which combines image gradient features at different orders and Gaussian process (GP) modeling; iv) a novel strategy to “coarsely” describe extremely high resolution images using various representation and matching strategies. …
-
A high accuracy nonlinear model of the human cochlea
… practicality. The proposed model is a bank of nonlinear digital filters followed by models of the outer and inner hair cells. Methods are introduced which allow for convex optimization of the parameters of the nonlinear filter bank to fit frequency responses generated by a high-accuracy …
-
Enhancing and Reconstructing Digitized Handwriting
… in the first part of this thesis. Then nonlinear filters, structural techniques, and enhancement techniques are applied to obtain substantial improvements in image quality.
-
Feedback particle filter and its applications
The purpose of nonlinear filtering is to extract useful information from noisy sensor data. It finds applications in all disciplines of science and engineering, including tracking and navigation, traffic surveillance, financial engineering, neuroscience, biology, robotics, computer vision, weather …
-
Dimensional reduction in nonlinear estimation of multiscale systems
… of the signal is completely known, the theory of filtering provides a recursive algorithm for estimating the conditional density (the filter) of the signal. Particle filters have been well established for the implementation of nonlinear filtering in applications. However, computational issues …
-
Design and analysis of particle-based algorithms for nonlinear filtering and sampling
… algorithms for two problems: (i) the nonlinear filtering problem; (ii) and the problem of sampling from a target distribution. The contributions for these two problems appear in Part I and Part~II of the thesis. For the nonlinear filtering problem, the focus is on the feedback particle …