分类
使用以数据为中心的 AI 工作流对信号进行分类。
App
函数
audioDatastore | Datastore for collection of audio files |
arrayDatastore | 内存中数据的数据存储 |
imageDatastore | 图像数据的数据存储 |
signalDatastore | Datastore for collection of signals |
waveletScattering | Wavelet time scattering |
signalTimeFeatureExtractor | Streamline signal time feature extraction |
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) |
模块
| Wavelet Scattering | Simulink 中的小波散射网络建模 (自 R2022b 起) |
相关信息
主题
- Use Experiment Manager Templates for Signal Processing Workflows (Signal Processing Toolbox)
Set up and run deep learning experiments for signal segmentation, classification, and regression.
- Signal Segmentation by Sweeping Hyperparameters (Signal Processing Toolbox)
- Signal Classification by Sweeping Hyperparameters (Signal Processing Toolbox)
- Signal Classification Using Transfer Learning (Signal Processing Toolbox)
- Signal Regression by Sweeping Hyperparameters (Signal Processing Toolbox)
精选示例
Direction-of-Arrival Estimation Using Deep Learning
Estimate direction of arrival using deep learning by predicting angular directions directly from the sample covariance matrix.
- 自 R2025a 起
- 打开实时脚本
Indoor Non-Line-Of-Sight Localization Using Deep Learning
To address the NLOS challenge, fingerprinting-based methods have gained popularity. Unlike traditional techniques that use low-dimensional range and angle features, fingerprinting can leverage high-dimensional signatures—such as channel state information (CSI) or range-angle heatmaps which encapsulate rich environmental information, including NLOS effects. Deep learning models excel at extracting meaningful patterns from these complex, high-dimensional inputs, enabling direct mapping from signal fingerprints to precise position estimates.
(Phased Array System Toolbox)
- 自 R2026a 起
CBRS Band Radar Parameter Estimation Using YOLOX
Detect radar pulses in noise and estimates the pulse parameters using a combination of time-frequency maps and a deep-learning object detector.
- 自 R2025a 起
- 打开实时脚本
Spoken Digit Recognition with Custom Log Spectrogram Layer and Deep Learning
Classify spoken digits using a deep convolutional neural network and a custom spectrogram layer.
(Signal Processing Toolbox)
Hand Gesture Classification Using Radar Signals and Deep Learning
Classify ultra-wideband impulse radar signal data using a MISO convolutional neural network.
Musical Instrument Classification with Joint Time-Frequency Scattering
Classify musical instruments using joint time-frequency features paired with a 3-D convolutional network.
Classify Arm Motions Using EMG Signals and Deep Learning
Classify arm motions using labeled EMG signals and a long short-term memory network.
(Signal Processing Toolbox)
- 自 R2022a 起
Wavelet Time Scattering Classification of Phonocardiogram Data
Classify human phonocardiogram recordings using wavelet time scattering and a support vector machine classifier.
(Wavelet Toolbox)
Export Labeled Data from Signal Labeler for Deep Learning Classification
Label signals and export data using Signal Labeler to train a deep learning classifier.
Machine Learning and Deep Learning Classification Using Signal Feature Extraction Objects
Use signal feature extraction objects and AI-based classification to identify faulty bearing signals in mechanical systems.
Acoustic Scene Classification with Wavelet Scattering
Use wavelet scattering and joint time-frequency scattering with a support vector machine to classify urban environments by sound.
(Wavelet Toolbox)
- 自 R2024b 起
Air Compressor Fault Detection Using Wavelet Scattering
Classify faults in acoustic recordings of air compressors using a wavelet scattering network and a support vector machine.
(Wavelet Toolbox)
- 自 R2021b 起
Pedestrian and Bicyclist Classification Using Deep Learning
Classify pedestrians and bicyclists based on their micro-Doppler characteristics using deep learning and time-frequency analysis.
(Radar Toolbox)
Time-Frequency Convolutional Network for EEG Data Classification
Classify electroencephalographic (EEG) time series from persons with and without epilepsy.
Signal Classification Using Wavelet-Based Features and Support Vector Machines
Classify electrocardiogram signals using features derived from wavelets and an autoregressive model.
(Wavelet Toolbox)
Detect Air Compressor Sounds in Simulink Using Wavelet Scattering
Use the Wavelet Scattering block and a pretrained deep learning network to classify audio signals.
(DSP System Toolbox)
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