异常检测
提取稀疏时频特征来检测电磁、声学和振动数据中的异常。
函数
deepSignalAnomalyDetector | Create signal anomaly detector (自 R2023a 起) |
audioDatastore | Datastore for collection of audio files |
arrayDatastore | 内存中数据的数据存储 |
signalDatastore | Datastore for collection of signals |
imageDatastore | 图像数据的数据存储 |
waveletScattering | Wavelet time scattering |
signalTimeFeatureExtractor | Streamline signal time feature extraction (自 R2021a 起) |
signalFrequencyFeatureExtractor | Streamline signal frequency feature extraction (自 R2021b 起) |
signalTimeFrequencyFeatureExtractor | Streamline signal time-frequency feature extraction (自 R2024a 起) |
stftLayer | Short-time Fourier transform layer (自 R2021b 起) |
istftLayer | Inverse short-time Fourier transform layer (自 R2024a 起) |
cwtLayer | Continuous wavelet transform layer (自 R2022b 起) |
icwtLayer | Inverse continuous wavelet transform layer (自 R2024b 起) |
modwtLayer | Maximal overlap discrete wavelet transform layer (自 R2022b 起) |
相关信息
精选示例
Anomaly Detection Using Convolutional Autoencoder with Wavelet Scattering Sequences
Detect anomalies in acoustic data using wavelet scattering and the
deepSignalAnomalyDetector
object.
- 自 R2024a 起
- 打开实时脚本
Detect Anomalies in Signals Using deepSignalAnomalyDetector
Use autoencoders to detect abnormal points or segments in time-series data.
- 自 R2023a 起
- 打开实时脚本
Detect Anomalies in Machinery Using LSTM Autoencoder
Use a long short-term memory autoencoder to detect anomalies in data from an industrial machine.
- 自 R2023a 起
- 打开实时脚本
Crack Identification from Accelerometer Data
Use wavelet and deep learning techniques to detect and localize transverse pavement cracks.
(Deep Learning Toolbox)
Detect Anomalies Using Wavelet Scattering with Autoencoders
Learn how to develop an alert system for predictive maintenance using wavelet scattering and deep learning.
(Deep Learning Toolbox)
Fault Detection Using Wavelet Scattering and Recurrent Deep Networks
Classify faults in acoustic recordings of air compressors using a wavelet scattering network paired with a recurrent neural network.
(Deep Learning Toolbox)
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