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256 209 (0,547s)

Result

Parameter estimation of lfm signal in low signal-to-noise ratio using cross-correlation function

is firstly to analyse the linear frequency modulation signals via Fast Fourier Transform...

Electrical and electronic engineering

  • 2021
  • JSC
  • Link
Result

ANALYSIS OF DYNAMIC PARAMETERS OF RAIL FASTENING BY SHORT TIME FOURIER TRANSFORMATION METHOD

The method using Short time Fourier transformation has been developed for the evaluation of response signals obtained by rail fastening analysis. In the paper the laboratory measurements and dynamic and acoustic parameter a...

JN - Stavebnictví

  • 2015
  • Jx
  • Link
Result

Analyses of Acoustic Emission Signal by Short Time Fourier Transform with Application on Thin-Walled Ceramic Building Materials

by the stroke of a special device into the tested thin-wall structure. The Short Time Fourier Transformation (STFT) was used to the analysis of this response. STFT in contradistinction to the classic Fourier Trans...

JN - Stavebnictví

  • 2000
  • D
Result

Information Engineering in Signal and Image Processing

methods of time-frequency and time-scale analysis using the short-time FourierEver-expanding general discipline of signal and image processing occupies a very important position in information engineering...

JD - Využití počítačů, robotika a její aplikace

  • 2001
  • D
Result

Toward High-Quality Real-Time Signal Reconstruction from STFT Magnitude

An efficient algorithm for real-time signal reconstruction from the magnitude of the short-time Fourier transform (STFT) is introduced. The proposed approach combines the strengths of two previously published algor...

Electrical and electronic engineering

  • 2017
  • Jimp
  • Link
Result

Zolotarev transfirm and spectral analysis

The paper deals with possibilities of application of Zolotarev transform in the short-time spectral analysis of nonstationary signals. The results of analysis are compared with the common used Fourier transform....

JA - Elektronika a optoelektronika, elektrotechnika

  • 2010
  • D
Result

ARTERIAL BLOOD PRESSURE WAVEFORM ARTIFACTS DETECTION USING SHORT-TIME FOURIER TRANSFORM

reactivity index (PRx). This study aimed to verify the ability of the short-time Fourier proposes the application of a short-time Fourier transform-based algorithm to enhance) with different dura...

Medical engineering

  • 2024
  • JSC
  • Link
Result

Perception of power quality disturbances using Fourier, Short-Time Fourier, continuous and discrete wavelet transforms

information about a signal. The method of Fourier analysis involves application of Fourier transform giving frequency information. The method of Short-Time Fourier analysis involves application of Sho...

Electrical engineering, Electronic engineering, Information engineering

  • 2024
  • Jimp
  • Link
Result

Time–frequency Analysis of Controller Input Signals Helps to Improve Production Quality of Metal Strips

Contact thickness gauges are usually used on rolling mills producing metal strips. Under some special circumstances, the contact thickness gauge can function incorrectly. This situation cannot be recognized by operator easily. This article describes ...

Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

  • 2017
  • D
Result

Representation of Transient Phenomena of Forced Oscillations

Various approaches can be used for representation of signals; Fourier transformation and time dependence of physical quantity are the most commonly applied but these methods give no information about time dependence of freq...

BI - Akustika a kmity

  • 2009
  • D
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