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Anomaly Detection

Detect signal anomalies using neural networks and autoencoders

Extract sparse time-frequency features based on wavelets to detect anomalies.

Functions

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deepSignalAnomalyDetectorCreate signal anomaly detector (Since R2023a)
cwtLayerContinuous wavelet transform layer (Since R2022b)
icwtLayerInverse continuous wavelet transform layer (Since R2024b)
modwtLayerMaximal overlap discrete wavelet transform layer (Since R2022b)
stftLayerShort-time Fourier transform layer (Since R2021b)
istftLayerInverse short-time Fourier transform layer (Since R2024a)
dlcwtDeep learning continuous wavelet transform (Since R2022b)
dlicwtDeep learning inverse continuous 1-D wavelet transform (Since R2024b)
dlmodwtDeep learning maximal overlap discrete wavelet transform and multiresolution analysis (Since R2022a)
dlstftDeep learning short-time Fourier transform (Since R2021a)
dlistftDeep learning inverse short-time Fourier transform (Since R2024a)
cwtfilterbankContinuous wavelet transform filter bank
findchangeptsFind abrupt changes in signal
findpeaksFind local maxima
modwtMaximal overlap discrete wavelet transform
risetime Rise time of positive-going bilevel waveform transitions
stftShort-time Fourier transform
signalFrequencyFeatureExtractorStreamline signal frequency feature extraction (Since R2021b)
signalTimeFeatureExtractorStreamline signal time feature extraction (Since R2021a)
signalTimeFrequencyFeatureExtractorStreamline signal time-frequency feature extraction (Since R2024a)
waveletScatteringWavelet time scattering
edfheaderCreate header structure for EDF or EDF+ file (Since R2021a)
edfinfoGet information about EDF/EDF+ file (Since R2020b)
edfreadRead data from EDF/EDF+ file (Since R2020b)
edfwriteCreate or modify EDF or EDF+ file (Since R2021a)
paddataPad data by adding elements (Since R2023b)
resizeResize data by adding or removing elements (Since R2023b)
trimdataTrim data by removing elements (Since R2023b)
signalDatastoreDatastore for collection of signals (Since R2020a)

Blocks

Wavelet ScatteringModel wavelet scattering network in Simulink (Since R2022b)
Deep Signal Anomaly DetectorDetect signal anomalies using deep learning network in Simulink (Since R2024a)

Topics

Featured Examples