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 12 of 12 for “"semi-blind"”.
-
PARALLEL INDEPENDENT COMPONENT ANALYSIS WITH REFERENCE FOR IMAGING GENETICS: A SEMI-BLIND MULTIVARIATE APPROACH
… robustness of the results compared to a fully blind approach. In this dissertation we present a semi-blind multivariate approach, parallel independent component analysis with reference (pICA-R), to better reveal relationships between hidden factors of particular attributes. First, a …
-
Techniques for robust source separation and localization in adverse environments: Issues and performance of a new framework of emerging techniques for frequency-domain convolutive blind/semi-blind separation and localization of acoustic sources
… Among numerous methods of multichannel blind source separation techniques, those based on the Independent Component Analysis (ICA) applied in the frequency-domain [81] are the most investigated, due to their straightforward physical interpretation and computational efficiency. In spite …
-
On the performance and capacity of space-time block coded multicarrier CDMA communication systems
… synchronization is studied. A subspace-based blind joint timing and frequency synchronization algorithm is proposed. After all the mobile users have adjusted and achieved synchronous transmission, the semi-blind channel estimation and linear multiuser detection are performed to recover the …
-
Acoustic Model Adaptation For Reverberation Robust Automatic Speech Recognition
… robustness to speech recognition, we propose "Semi-blind adaptation" technique which adapts the clean acoustic models to the reverberant environment and thus provide improved performance. Semi-blind adaptation technique works in two phases, in the first phase reverberation model is estimated …
-
A feature-based fingerprinting scheme robust to desynchronization
… against geometric attacks. We propose a novel semi-blind fingerprinting scheme that can cope with such attacks. The scheme improves a state-of-the-art high-rate fingerprinting code that can resist tens of colluders and Gaussian noise but has no resistance against geometric attacks. Our scheme …
-
Digital audio watermarking for broadcast monitoring and content identification
… embedded watermarks in music signals using a semi-blind decoding process. The final digital audio watermarking algorithm proposed facilitates the development of other applications in the domain of broadcast monitoring for the purposes of equitable royalty distribution along with additional …
-
Approximate credibility intervals on electromyographic decomposition algorithms within a Bayesian framework
… component analysis with electromyographic data. Blind source separation (BSS) algorithms, such as independent component analysis (ICA), are often used to solve the inverse problem arising when, for example, attempting to retrieve the activation patterns of motor units (MUs) from electromyographic …
-
Channel Estimation in TDD and FDD-Based Massive MIMO Systems
… (MIMO) systems, where, a time-domain semi-blind channel estimation technique is proposed. Compared to frequency-domain, the time-domain channel estimation requires fewer parameters be estimated. Importantly, the time-domain estimation has enough samples for an accurate channel …
-
A study of potential serum markers for a diagnosis of gram-positive and gram-negative bacterial sepsis
… a diagnosis of sepsis became problematic and a semi-blind trial was devised to test the markers in the absence of both clinical details and positive blood cultures. Patients with pyrexia of unknown origin and negative BC were included in this phase (4). The results showed that IL-6 with sICAM-l …
-
Enhancing Performance of Next-Generation Vehicular and Spectrum Sharing Wireless Networks: Practical Algorithms and Fundamental Limits
… this problem, we propose a low-complexity semi-blind SINR estimation scheme that is robust and accurate in a wide range of interference and noise conditions. We also propose a novel dual CSI feedback mechanism for cellular systems and demonstrate significant improvements in throughput, …
-
Fast blind adaptive equalisation for multiuser CDMA systems
… Recursive Least Squares (RLS) algorithms, or on blind adaptation, such as the Constant Modulus Algorithm (CMA) or the Decision Directed algorithm (DD), which has similar convergence properties as the LMS in the absence of decision errors, the CMA is relatively slow compared to the DD algorithm …
-
Distortion-optimal parallel MRI with sparse sampling: from adaptive spatio-temporal acquisition to self-calibrating reconstruction
… by a customized pulse sequence, the fast semi-blind acquisition design technique enables streamlined implementation of the method in a clinical setting. Moreover, the unified multi-channel sampling framework explicitly accounts for speed limitations of gradient encoding, provides …