Análisis y visualización de señales
La app Signal Analyzer es una herramienta interactiva que sirve para visualizar, medir, analizar y comparar señales en los dominios de tiempo, frecuencia y tiempo-frecuencia. La app permite trabajar con muchas señales de distinta duración al mismo tiempo y en la misma vista.
Inicie la app seleccionándola en la pestaña Apps de la barra de herramientas de MATLAB®. También puede iniciar la app escribiendo signalAnalyzer en la línea de comandos de MATLAB.
Apps
| Signal Analyzer | Visualizar y comparar múltiples señales y espectros |
Funciones
strips | Gráfica de bandas |
Temas
Flujo de trabajo de la app
- Utilizar la app Signal Analyzer
Visualice, mida, analice y compare señales en los dominios de tiempo, frecuencia y tiempo-frecuencia.
- PASO 1: Select Signals to Analyze
- PASO 2: Preprocess Signals
- PASO 3: Explore Signals
- PASO 4: Measure Signals
- PASO 5: Share Analysis
Análisis del espectro y de tiempo-frecuencia
- Spectrum Computation in Signal Analyzer
To compute signal spectra, Signal Analyzer finds a compromise between the best theoretical spectral resolution and the best resolution allowed by performance constraints. - Persistence Spectrum in Signal Analyzer
The persistence spectrum contains time-dependent probabilities of occurrence of signals at given frequency locations and power levels. - Spectrogram Computation in Signal Analyzer
To display the time-dependent spectrum of a nonstationary signal, Signal Analyzer divides the signal into overlapping Kaiser-windowed segments and computes their short-time Fourier transforms. - Scalogram Computation in Signal Analyzer
The scalogram is useful for identifying signals with low-frequency components and for analyzing signals whose frequency content changes rapidly with time.
Temas auxiliares
- Data Types Supported by Signal Analyzer
Signal Analyzer accepts vectors and matrices,timeseriesobjects, and MATLAB timetables. - Edit Sample Rate and Other Time Information
You can add and edit the time information in the Signal Analyzer app for any signal that is not a MATLAB timetable or atimeseriesobject. - Signal Analyzer Tips and Limitations
Prepare data to circumvent current limitations of Signal Analyzer. - Keyboard Shortcuts for Signal Analyzer
Use the keyboard to control the Signal Analyzer app. - Customize Signal Analyzer
Specify line color and style, add or remove columns in the Signal table, and modify Signal Analyzer displays.
Información relacionada
Ejemplos destacados
Resolver tonos variando el manchado de las ventanas
Ajuste el manchado espectral para resolver sinusoides en Signal Analyzer.
Calcular el espectro de una señal utilizando distintas ventanas
Calcule el espectro de una señal y varíe su resolución modificando la forma y el tamaño de la ventana.
Compute Envelope Spectrum of Vibration Signal
Compute the envelope spectrum of a signal and combine app-generated scripts and functions into a single workflow.
Declip Saturated Signals Using Your Own Function
Write a function to declip saturated signals and include it in Signal Analyzer.
Find and Track Ridges Using Reassigned Spectrogram
Use the reassigned spectrogram in Signal Analyzer to sharpen the time and frequency localization of spectrograms.
Modulation and Demodulation Using Complex Envelope
Visualize complex-valued signals in Signal Analyzer.
Extract Voices from Music Signal
Use Signal Analyzer to extract voices from a song by duplicating and filtering signals.
Extraer regiones de interés del canto de una ballena
Extraiga regiones de interés de señales en Signal Analyzer.
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