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 5 of 5 for “"Wiener filters"”.
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Uniform FIR approximation of causal Wiener filters with applications to causal coherence
Leveraging the relationship between Wiener filtering and the coherence function, a version of coherence is defined that captures the causal relationship between WSS processes. This causal coherence is interpreted in a modeling context and used to demonstrate what a frequency dependent measure for …
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Combining RF Machine Learning and RF Photonics to Enable New Analog Communications Architectures
… signal processing operations like matched filters, Wiener filters, and linear signal estimation as well as a 3-layer DNN for modulation classification of raw RF signals, thus being the first recorded analog hardware accelerator to ever perform deep learning directly on raw RF signals. We …
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Improving ultrasonic imaging using novel coded excitation techniques
… were assessed. First, it was hypothesized that a Wiener filter could adversely affect the compression performance of coded excitation because it had the potential to boost the harmonics due to nonlinear distortion. When the Wiener filter operated near an inverse filter the harmonics were boosted, …
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Motion picture restoration
… which limits the distortion caused by the filters . This technique is found to be extremely effective in practice and is an alternative to the traditional global median operation. The new median filter is shown to be superior to those previously presented with respect to the ability to …
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Magnetotelluric measurements across the southern Barberton Greenstone Belt, South Africa
… welcher auf einer abgewandelten Form des Wiener Filters beruht und diese Art von Störsignalen aus den Daten entfernt. Durch den Vergleich der Datenvarianz einer lokalen Station mit der einer Referenzstation können gestörte Zeitsegmente identifiziert werden. Anschließend wird ein …