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 46 for “"Multirate"”.
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*Multidimensional Multirate Systems: Characterization, Design, and Applications
… and applications of ""true"" multidimensional multirate systems. One key property of multidimensional multirate systems is perfect reconstruction, which guarantees the original input can be perfectly reconstructed from the outputs. The most popular multidimensional multirate systems are …
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Robust stability of asynchronous multirate sampled systems
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1991.
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Application of multirate digital signal processing to image compression
… of grayscale images which is based on the multirate digital signal processing system. The input image spectrum is decomposed into octave wide subbands by critically resampling and filtering the image using separable FIR digital filters. These filters are chosen to satisfy the perfect …
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Frequency sampling digital filters for multirate applications and pipelined implementations
… it cannot be pipelined or efficiently used in multirate applications. In this thesis, a frequency sampling filter that has only delays of length D in it feedback paths is developed. The new frequency sampling filter can be pipelined and efficiently used in multirate applications.
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Wavelets and multirate filter banks : theory, structure, design, and applications
Wavelets and filter banks have revolutionized signal processing with their ability to process data at multiple temporal and spatial resolutions. Fundamentally, continuous-time wavelets are governed by discrete-time filter banks with properties such as perfect reconstruction, linear phase and …
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Multistage adaptive filtering in a multirate digital signal processing system
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1993.
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Towards optimisation of digital filters and multirate filter banks through genetic algorithms
… design and optimisation of digital filters and multirate filter banks. The main focus and contribution of this thesis is to apply the genetic algorithm (GA) technique and to draw some comparison with the standard gradient and non-gradient based optimisation methods. The finite word length (FWL) …
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Power system transient stability analysis of stiff systems using the Multirate method
… a substantial amount of time to simulate. The Multirate integration method is one way to speed up simulation studies. This thesis studies the effects of using a type of Multirate simulation method in a software package. In this study, the Multirate method is used mainly on simulating fast …
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Further analysis and application of the multirate method for power system dynamic simulation
… and then presents further analysis of the multirate method and its application to power system dynamic simulation"--Abstract, page iv.
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Reliable Decentralized Controller Design for Discrete/continuous-Time, Sampled-Data, and Multirate Systems
… closed-loop system norm; and the design of multirate decentralized digital controllers for systems with sensors and actuators operating at different sampling and zero-order-hold rates.
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Analysis and synthesis of controllers for the classes of slowly varying, periodic, and multirate systems
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1991.
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Phase-locked loop, delay-locked loop, and linear decorrelating detector for asynchronous multirate DS-CDMA system
… is investigated in wideband asynchronous multirate DS-CDMA system. Dynamic Partial Correlation (DPC) method is proposed to evaluate the autocorrelation and its power spectrum density (PSD) of the cross-correlated terms in the presence of multirate multiple access interference (MMAI) under …
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Effects of multirate compensation on a digital autopilot for thrust vector control of a launch vehicle
Thesis. 1976. M.S.--Massachusetts Institute of Technology. Dept. of Aeronautics and Astronautics.
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L(1)-Optimal Control Using State Space, Controlled Invariance Based Methods
… solution method is also generalized to linear multirate systems (LMR) systems. As the structure of multirate systems inherently precludes access to the entire state at every time step, the aforementioned set-valued estimation technique is utilized in this solution method. It is shown that this …
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The value of variables obtained during a sub-maximal multirate and multilevel step test in predicting maximum oxygen consumption of the treadmill run
Thesis (M.A.)--Michigan State University. Dept. of Health, Physical Education and Recreation, 1964
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CAPACITY ENHANCEMENT OF CDMA SYSTEM USING ANTENNA ARRAY
… with the study of capacity enhancement for a multirate code-division multiple access (CDMA) system with uniform linear array (ULA) at the base station (BS) [1 - 3]. An overall system outage probability is proposed as a capacity performance measure for multirate CDMA system with different …
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Wavelets and filter banks: New results and applications
… which computations can be done efficiently with multirate systems known as filter banks. This thesis develops a comprehensive set of tools for (multidimensional) multirate signal analysis and uses them to investigate two multirate systems: filter banks and transmultiplexers. Several results in …
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A forward thinking expert system in well test analysis
… and selecting the type of analysis (multiphase, multirate, fracture, etc.), to evaluating the correct data for analysis or matching the best type curve.</p> <p>This paper describes an application of artificial intelligence through a compilation of facts, rules-of-thumb, and procedures in the form …
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Multimethods for the Efficient Solution of Multiscale Differential Equations
… and to address these issues. First, new implicit multirate Runge–Kutta methods are analyzed with a special focus on stability. This is extended into implicit multirate infinitesimal methods. We introduce approaches for constructing implicit-explicit methods based on Runge–Kutta and general linear …
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Efficient algorithms for flow models coupled with geomechanics for porous media applications
… compared to the flow problem. This makes the multirate coupling scheme, the one in which the flow problem takes several (finer) time steps within the same coarse mechanics time step, a natural candidate in this setting. Inspired by that, we rigorously formulate and analyze convergence …
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