Essays about: "short time Fourier transform"
Showing result 16 - 20 of 25 essays containing the words short time Fourier transform.
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16. Optimality of uncertaintyprinciples for joint timefrequencyrepresentations
University essay from Linnéuniversitetet/Institutionen för matematik (MA)Abstract : The study of joint time-frequency representations is a large field of mathematics and physics, especially signal analysis. Based on Heisenberg's cllassical uncertainty principle various inequalities for such time-frequency distributions have been studied. READ MORE
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17. Measurement of horses gaits using geo-sensors
University essay from Högskolan i Gävle/Avdelningen för elektronik, matematik och naturvetenskapAbstract : The aim of this thesis is to determine the horse’s gait types using the acceleration values measured from the horse. A measurement was taken in Gävletravet, a total of five Nanotrak sensors were used, four on the different parts of the horse, and one on the hand of the horse’s driver, a car was driven parallel to the horse and the motions of the horse was recorded by a camera in order to synchronize with the data measured by the sensors, a total of four videos were recorded. READ MORE
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18. Combining Beamforming and Blind Source Separation to Improve Source Separation Performance
University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskapAbstract : Beamforming (BF) and Blind Source Separation (BSS) are always two interesting methodologies to witness in order to separate two sources. BSS in frequency domain have been facing a serious issue of permutation ambiguity while performing source separation using Independent Component Analysis (ICA). READ MORE
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19. On the Short-Time Fourier Transform and Gabor Frames generated by B-splines
University essay from Institutionen för datavetenskap, fysik och matematik, DFMAbstract : In this thesis we study the short-time Fourier transform. The short-time Fourier transform of a function f(x) is obtained by restricting our function to a short time segment and take the Fourier transform of this restriction. This method gives information locally of f in both time and frequency simultaneously. READ MORE
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20. Methods for Recovery of Missing Speech Packets
University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskapAbstract : In packetized voice communication, speech packets are sometimes lost due to data transmission problems, e.g., signal fading, or interfering users and noise. For the recovery of missing speech packets, different methods are proposed. READ MORE