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 11 of 11 for “"MVDR"”.
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Array Signal Processing for Communications from High Altitude Platforms and Other Applications
… the minimum variance distortionless response (MVDR) beamformer is investigated. We show that the robustness of the MVDR beamformer can be improved by applying the Mailloux’s null-broadening method in the downlink scenario and propose a modified constrained optimization method, which further …
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Podnikatelský záměr rozvoje firmy
… práce se zabývá podnikatelským záměrem firmy MVDr. Kinský a hodnotí finanční situaci firmy. Dále předkládá možnosti financování podnikatelského záměru. Na základě zjištěných údajů je firmě navržena nejvhodnější varianta financování záměru s uvedením výhod a nevýhod tohoto navrhovaného řešení.
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Adaptive matched field processing in an uncertain propagation environment
… Minimum Variance Distortionless Response (MVDR) Matched Field Processor. The first stage of this processor generates an estimate of the replica vector of the signal emitted by a source at the array focal point, and the second stage is a traditional MVDR Matched Field Processor implemented …
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Detection, identification and localization of R/C electronic devices through their unintended emissions
… antenna-array processing method called VIVEK-MVDR-GA. It combines multi-constrained genetic algorithm (GA) and minimum variance distortion-less response (MVDR) method to increase accuracy of detection and localization of multiple devices. Finally, a 4-element array mounted on an unmanned …
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DCD Algorithm: Architectures, FPGA Implementations and Applications
… minimum variance distortionless response (MVDR) beamformer employs the DCD algorithm for multiplication-free finding the antenna array weights. An FPGA implementation of the proposed DCD-MVDR beamformer requires a chip area much smaller and throughput much higher than that achieved with …
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Toward More Intelligible Simultaneous Multi-channel Speech Enhancement and Recognition
… mask estimation can help improve the mask based MVDR beamforming algorithm. Then we propose a novel mask-dependent training criterion to improve the phase estimation for speech separation. Additionally, we propose an end-to-end multi-channel neural network (WPD++) that can simultaneously separate …
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Applied stochastic Eigen-analysis
… on the distribution of the outputs of the Capon-MVDR beamformer when the sample covariance matrix is diagonally loaded.
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Channel estimation and signal enhancement for DS-CDMA systems
… distortionless response transceiver (STTD+MVDR) is near-far resistant and outperforms the conventional STTD and matched filter based (STTD+MF) transceiver scheme. Obtaining channel state information (CSI) is instrumental to optimum S-T transceiver design in wireless systems. Another major …
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Applied stochastic eigen-analysis
… on the distribution of the outputs of the Capon-MVDR beamformer when the sample covariance matrix is diagonally loaded. The second part of the dissertation investigates the limiting distribution of the eigenvalues and eigenvectors of a broader class of random matrices. A powerful method is …
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Highly Robust and Efficient Estimators of Multivariate Location and Covariance with Applications to Array Processing and Financial Portfolio Optimization
… minimum variance distortionless response (MVDR) beamformers based on S- and M-estimators are compared. To illustrate the finite-sample performance benefits of the Sq-estimator, empirical simulation results of multiple signal classification (MUSIC) direction-of-arrival estimation are …
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Adaptive Beamforming using ICA for Target Identification in Noisy Environments
The blind source separation problem has received a great deal of attention in previous years. The aim of this problem is to estimate a set of original source signals from a set of linearly mixed signals through any number of signal processing techniques. While many methods exist that attempt to …