Essays about: "DFT FFT"

Showing result 1 - 5 of 8 essays containing the words DFT FFT.

  1. 1. Vibration analysis for condition monitoring of mechanical presses

    University essay from Lunds universitet/Industriell Produktion

    Author : Julia Runesson; [2019]
    Keywords : Vibration analysis; Predictive maintenance; Condition monitoring; Mechanical press; Press maintenance; PSD; DFT FFT; RMS; Kurtosis; Technology and Engineering;

    Abstract : In a world where the concept of just-in-time has been lifted outside of the manu-facturing world and onto the market, the increasing demand of luxury wares like cars is accompanied only by tougher industrial conditions and no room for error. Loss of productivity and decrease in efficiency can be devastating to any manufac-turing company in today’s market climate. READ MORE

  2. 2. A study of classification methods to identify sound signals of a washing machine

    University essay from Lunds universitet/Matematik LTH

    Author : Chiharu Kazama; [2019]
    Keywords : Fourier transform; DFT; FFT; STFT; sounds classification; Keras; supervised learning; neural network; Random search; machine learning; signal processing; Mathematics and Statistics;

    Abstract : Syftet med denna uppsats är att undersöka och klassificera ljud från en tvättmaskin. Ett tvättmaskinsprogram har olika faser, t ex vattenfyllning, tvättning, centrifugering, etc. Varje fas har ett eget ljud, därför kan vi anta vilken av faserna det är från ljudet, även om vi inte ser tvättmaskinen. READ MORE

  3. 3. Analysing Memory Performance when computing DFTs using FFTW

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS); KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Andreas Heiskanen; Erik Johansson; [2018]
    Keywords : fftw; discrete fourier transform; fast fourier transform; hpc; perf; cache; memory analysis;

    Abstract : Discrete Fourier Transforms (DFTs) are used in a wide variety of dif-ferent scientific areas. In addition, there is an ever increasing demand on fast and effective ways of computing DFT problems with large data sets. The FFTW library is one of the most common used libraries when computing DFTs. READ MORE

  4. 4. Implementation of LTE Baseband Algorithms for a Highly Parallel DSP Platform

    University essay from Linköpings universitet/Datorteknik

    Author : Markus Keller; [2016]
    Keywords : SIMD; DSP; FFT; DFT; LTE; OFDM; ePUMA; sleipnir; Cooley Tukey; Zeroforcing; Channel equalization;

    Abstract : The division of computer engineering at Linköping’s university is currentlydeveloping an innovative parallel DSP processor architecture called ePUMA. Onepossible future purpose of the ePUMA that has been thought of is to implement itin base stations for mobile communication. READ MORE

  5. 5. Implementation and Evaluation of Spectral Subtraction with Minimum Statistics using WOLA and FFT Modulated Filter Banks

    University essay from Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling; Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

    Author : Peddi Srinivas Rao; Vallabhaneni Sreelatha; [2014]
    Keywords : Speech Enhancement; Filter Bank; Spectral Subtraction; Wiener Filtering; PESQ; DFT ; Master of Science Programme in Electrical Engineering with emphasis on Signal Processing Masterprogram i Elektroteknik med inriktning mot signalbehandling;

    Abstract : In communication system environment speech signal is corrupted due to presence of additive acoustic noise, so with this distortion the effective communication is degraded in terms of the quality and intelligibility of speech. Now present research is going how effectively acoustic noise can be eliminated without affecting the original speech quality, this tends to be our challenging in this current research thesis work. READ MORE