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 20 of 25 for “"sampling theory"”.
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Application of sampling theory and field analytical techniques to environmental investigation, The
Includes bibliographical references.
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A study of rough amplitude quantization by means of nyquist sampling theory
Thesis (Sc.D.) Massachusetts Institute of Technology. Dept. of Electrical Engineering, 1956.
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Universal Minimum-Rate Sampling and Spectrum-Blind Reconstruction for Multiband Signals
… includes three parts: (1) one-dimensional theory and design, (2) two-dimensional theory and design (which is readily extendable to higher dimensions), and (3) application to Fourier imaging. The proposed spectrum-blind sampling and reconstruction theory addresses issues like existence and …
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Finite Population Quantile Estimators
… mean-based methods. Following an introduction in sampling theory and a brief overview on quantile regression, two new quantile based estimators are introduced and some of their properties are examined. A proof for consistency of the marginal quantile estimator and for Bahadur-Expansion validity of …
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The mathematical-statistical methodology of the contemporary Soviet family budget survey
… to be the neglect of mathematical statistics and sampling theory in Soviet socio-economic statistics, originating in the Stalin period, and the bureaucratic inertia of the Central Statistical Administration.
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Estimation of the population mean using two extremes in order statistics
… most non-parametric statistical inference, the sampling theory of order statistics has been playing a fundamental role because of that properties of the range and the average of the smallest and largest order statistics are useful for estimate the population parameters of both large and small …
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MIMO radar: signal processing, waveform design, and applications to synthetic aperture imaging
… presented to mitigate this issue. New results in sampling theory are derived that allow the aliasing that occurs when a wide-sense stationary random process is non-uniformly sampled to be quantified. These results are applied to the case of recurrent sampling and used to quantify the impact of …
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The interactive effects of data categorization and noncircularity on the sampling distribution of generalizability coefficients in analysis of variance models : an empirical investigation
… to conduct a series of simulations under various sampling conditions. Five independent parameters were considered in the simulations: (a)three levels of repeated measures (3, 5, 7); (b) three G coefficients (.60, .75, .90); (c) three epsilon values (.50,.70, 1.0); (d) three sample sizes (15, 30, …
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Economical sampling of parametric signals
… noise. Our simple acquisition circuitry and low sampling rate enable accurate parameter estimation to be achieved economically. In present practice, sampling and estimation are not integrated: the sampling device does not take advantage of the parametric model, and the estimation assumes that …
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Some Notes on Compressive Sensing
… in this thesis. The basic principle of Nyquist sampling theory has been one of the conventional ways in data acquisition and reconstruction signals and images. This so-called principle, introduces a minimum rate at which a signal can be sampled to be reconstructed without any errors. On the …
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Optimal and Permissible Sampling Rates for First-Order Sampling of Two-Band Signals
Sampling theory plays an essential role in the advancement of digital signal processing (DSP). All known DSP processors only work with digital samples of an analog signal (continuous-time signal). Therefore, reliable sampling of a signal is crucial for the successive phases of DSP. A well-known …
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Sampling time-resolved phenomena
… inverse problems and provide fundamental limits. Sampling theory, which deals with the interplay between the discrete and the continuous realms, plays a critical role in this work due to the continuous nature of physical world and the discrete nature of its proxy, that is, the time-resolved …
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Atomic-scale and three-dimensional transmission electron microscopy of nanoparticle morphology
… reconstruction. Compressed sensing, a new sampling theory, asserts that many signals can be recovered from far fewer measurements than traditional theories dictate are necessary. Compressed sensing is applied here to electron tomographic reconstruction, and is shown to yield far higher …
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Compact and low-power computational 3D sensors for gestural input
… on modeling and algorithms from parametric sampling theory and compressed sensing. Then, a separate system for 3D localization, without full 3D imaging, is presented. This system, Mime, is built using standard, low-cost opto-electronic components - a single LED and three baseline separated …
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Exploring low-cost deep ocean sensing utilizing undersea cable networks
… important to measure. We discuss information and sampling theory to flush out the tradeoff of resolution and cost, detecting boundaries, and the method by which we can determine the number of sensors across a spatial area. We construct a general mechanical model of an array of sensors to ensure …
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Computational Framework Enabling an EEG-based BCI for Neurofeedback in Language Disorders: The case of dyslexia
… of speech literature and the temporal sampling theory of dyslexia and two potential neural patterns to target for neurofeedback were identified. The first was an hypothesis-driven theta/delta oscillatory band ratio observable in a story listening condition (connected speech). The second …
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An Intraseason Forecasting System for Commercial Marine Fisheries
… regression model and the ratio estimator of sampling theory. A comparison of these models, a two parameter linear model, and a regression estimator is made to determine if the precision of forecasts of performance can be improved.</p> <p>Forecasts by all methods are calculated on each …
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Multivariate Money: A statistical analysis of Roman Republican coin hoards with special reference to material from Romania
… which is the result of simple probability and sampling theory, not changes in the speed of circulation of coin as has been suggested by other authors. Simulation studies are used to examine the validity of estimates of coin production and annual coin loss. The results are summarised. The …
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On the spatial predictability of wireless channels and robust networked cooperation in mobile sensor networks
… channel predictability. Furthermore, we show how sampling positions can be optimized to improve the prediction quality. Inspired by the recent results in non-uniform sampling theory, we then pursue a different path in Chapter 3 and show how the sparsity of the wireless channel in the frequency …
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Frames In Hilbert C*-modules
… image processing, data compression and sampling theory etc. Today, powerful tools from operator theory and Banach space theory are being introduced to the study of frames producing deep results in frame theory. In recent years, many mathematicians generalized the frame theory from …
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