Search for dissertations about: "signal-to-noise"

Showing result 1 - 5 of 228 swedish dissertations containing the word signal-to-noise.

  1. 1. Control and Communication with Signal-to-Noise Ratio Constraints

    University dissertation from Department of Automatic Control, Lund Institute of Technology, Lund University

    Author : Erik Johannesson; Lund University.; Lunds universitet.; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Real-time coding; SNR; Causal coding; AWN channel; AWGN channel; Remote source; Networked control; Control over channel; Convex optimization; Wiener filter;

    Abstract : This thesis is about two problems in the intersection of communication and control theory. Their common feature is that they involve communication over an additive white noise channel with a signal-to-noise ratio (SNR) constraint. The first problem concerns the transmission of a real-valued signal from a partially observed Markov source. READ MORE

  2. 2. Extracting 3D Information from 2D Crooked Line Seismic Data on Hardrock Environments

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Johiris Isabel Rodriguez Tablante; Uppsala universitet.; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Hardrock Environment; Crooked line; Reflection Seismics; signal-to-noise; cross-dip; cross-profile; Geovetenskap; NATURAL SCIENCES Earth sciences; NATURVETENSKAP Geovetenskap;

    Abstract : Seismic methods have been used in sedimentary environment for almost 80 years. During that time, exploration geophysicists have developed a number of techniques to handle specific aspects of working in sedimentary areas. READ MORE

  3. 3. On the Adaptive Array Problem

    University dissertation from Linköping : Linköping University

    Author : Mats Viberg; Linköpings universitet.; Linköpings universitet.; [1987]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Direction-of-Arrival; Signal to Noise Ratio; Adaptive array problem; Radio communication system;

    Abstract : By an array we mean a set of coupled sensors, typically antenna elements. The array receives superimposed signals from distant sources. By combining the outputs of the sensors in different ways, one can change the array sensitivity to different Directions-of-Arrival (DOA). READ MORE

  4. 4. Exploring the Boundaries of Gene Regulatory Network Inference

    University dissertation from Stockholm : Department of Biochemistry and Biophysics, Stockholm University

    Author : Andreas Tjärnberg; Stockholms universitet.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; GRN; gene regulatory network; network inference; signal to noise ratio; model selection; variable selection; data properties; reverse engineering; ordinary differential equations; gene networks; linear regression; lasso; biokemi med inriktning mot bioinformatik; Biochemistry towards Bioinformatics;

    Abstract : To understand how the components of a complex system like the biological cell interact and regulate each other, we need to collect data for how the components respond to system perturbations. Such data can then be used to solve the inverse problem of inferring a network that describes how the pieces influence each other. READ MORE

  5. 5. AVHRR NDVI for monitoring and mapping of vegetation and drought in East African environments

    University dissertation from Lund University Press

    Author : Lars Eklundh; Lund University.; Lunds universitet.; [1996]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Geologi; fysisk geografi; physical geography; Geology; phenology; seasonality; Fourier series; geostatistics; signal-to-noise ratio;

    Abstract : In this thesis, an assessment is made of the performance of the Normalized Difference Vegetation Index (NDVI) derived from coarse resolution data from the NOAA AVHRR sensor, with particular reference to mapping and monitoring of drought and vegetation in East African vegetation and climatic conditions. Methods for analysing time series of satellite data are investigated. READ MORE