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Signal Visualization & Analysis—Wolfram Language Documentation

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• Functions
  • AudioIntervals
  • AudioLocalMeasurements
  • AudioMeasurements
  • AudioPlot
  • Cepstrogram
  • CepstrogramArray
  • ContourDetect
  • CrossingDetect
  • DateListPlot
  • DaubechiesWavelet
  • Differences
  • DiscreteWaveletTransform
  • EdgeDetect
  • FindAnomalies
  • FindFaces
  • FindFit
  • FindPeaks
  • Fourier
  • FourierSequenceTransform
  • Histogram
  • HistogramList
  • ImageMeasurements
  • ImagePeriodogram
  • InverseFourier
  • InverseShortTimeFourier
  • InverseSpectrogram
  • InverseWaveletTransform
  • ListLinePlot
  • ListPlot
  • MaxDetect
  • Mean
  • MinDetect
  • MovingAverage
  • MovingMap
  • Periodogram
  • PeriodogramArray
  • ShortTimeFourier
  • Spectrogram
  • SpectrogramArray
  • TimeSeriesForecast
  • TimeSeriesModelFit
  • Variance
  • WaveletListPlot
  • WaveletScalogram
• Related Guides
  • Signal Processing
  • Creating & Importing Signals
  • Data Visualization
  • Statistical Data Analysis
  • Fourier Analysis
  • Wavelet Analysis
  • Machine Learning

Signal analysis is the task of transforming, manipulating and interpreting signals to extract useful information and gain insight into the properties of the systems that created them. The role of signal visualization is to graphically display signals to make the relevant patterns, trends and anomalies visible to the human eye.

ListPlot — plot a discrete-time signal

ListLinePlot  ▪  DateListPlot  ▪  Histogram  ▪  ...

FindPeaks — find peaks in a signal

FindAnomalies — find anomalies in a signal

CrossingDetect  ▪  ContourDetect  ▪  MinDetect  ▪  MaxDetect

Histogram — plot a signal histogram

HistogramList  ▪  Mean  ▪  Variance  ▪  FindFit  ▪  MovingAverage  ▪  ...

Fourier — compute the discrete Fourier transform of a signal

Periodogram — show power spectrum of a signal

PeriodogramArray  ▪  InverseFourier  ▪  FourierSequenceTransform  ▪  ...

Spectrogram — show the time-frequency content of a signal

ShortTimeFourier — compute the short-time Fourier transform of a signal

InverseShortTimeFourier  ▪  InverseSpectrogram  ▪  SpectrogramArray  ▪  Cepstrogram  ▪  CepstrogramArray

DiscreteWaveletTransform — discrete wavelet transform (DWT)

DaubechiesWavelet — Daubechies wavelet family

InverseWaveletTransform  ▪  WaveletListPlot  ▪  WaveletScalogram  ▪  ...

DateListPlot — plot a time series

MovingMap  ▪  Differences  ▪  TimeSeriesModelFit  ▪  TimeSeriesForecast  ▪  ...

AudioPlot — plot an audio signal

AudioMeasurements  ▪  AudioLocalMeasurements  ▪  AudioIntervals  ▪  ...

ImagePeriodogram — show frequency content of an image

ImageMeasurements  ▪  EdgeDetect  ▪  FindFaces  ▪  ...

▪
• Signal Processing
▪
• Creating & Importing Signals
▪
• Data Visualization
▪
• Statistical Data Analysis
▪
• Fourier Analysis
▪
• Wavelet Analysis
▪
• Machine Learning

• Wolfram Community: Signal Processing
• Wolfram Core Areas: Signal Processing

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