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Get Started with DSP System Toolbox

Design and simulate streaming signal processing systems

DSP System Toolbox™ provides algorithms, apps, and scopes for designing, simulating, and analyzing signal processing systems in MATLAB^® and Simulink^®. You can model real-time DSP systems for communications, radar, audio, medical devices, IoT, and other applications.

With DSP System Toolbox you can design and analyze FIR, IIR, multirate, multistage, and adaptive filters. You can stream signals from variables, data files, and network devices for system development and verification. The Time Scope, Spectrum Analyzer, and Logic Analyzer let you dynamically visualize and measure streaming signals. For desktop prototyping and deployment to embedded processors, including ARM^® Cortex^® architectures, the toolbox supports C/C++ code generation. It also supports bit-accurate fixed-point modeling and HDL code generation from filters, FFT, IFFT, and other algorithms.

Algorithms are available as MATLAB functions, System objects, and Simulink blocks.

Tutorials

Filters and Streaming Signal Processing

Introduction to Streaming Signal Processing in MATLAB
Use System objects to process streaming signals in MATLAB®.
Tunable Lowpass Filtering of Noisy Input in Simulink
This example shows how to filter a noisy chirp signal with a lowpass filter that has a tunable passband frequency.
Lowpass Filter Design in MATLAB
This example shows how to design lowpass filters.
Multirate Filtering in MATLAB and Simulink
Perform multirate filtering using rate conversion objects and blocks.

Visualize and Measure Signals

Signal Visualization and Measurements in MATLAB
Visualize and measure signals in the time and frequency domain in MATLAB® using a time scope and spectrum analyzer.

Spectral Analysis

Estimate the Power Spectrum in Simulink
Compute the power spectrum using the Spectrum Analyzer and the Spectrum Estimator blocks.

Measurements and Statistics

What Are Moving Statistics?
Learn how moving statistics are calculated.

Devices and Network

Data Transmission Using UDP in Simulink
Transmit and receive a sine wave signal over UDP network.

Code Generation

Understanding C Code Generation in DSP System Toolbox
Generate C code from DSP System Toolbox signal processing algorithms using MATLAB Coder™ and Simulink Coder.
Generate Standalone Executable and Interact with It Using UDP
This example shows how to generate a standalone executable for streaming statistics using MATLAB® Coder™ and tune the generated executable using a user interface (UI) that is running in MATLAB®.

About DSP System Modeling

Sample- and Frame-Based Concepts

Explore basic signal concepts in the context of a Simulink model. Learn more about sample-based processing and frame-based processing.
Configure Simulink Environment for Signal Processing Models

Shows how to configure the Simulink environment for use in signal processing models.
Tune and Experiment with Block Parameter Values (Simulink)

As you construct a model you can experiment with block parameters, such as the coefficients of a Transfer Fcn block, to help you decide which blocks to use.

Featured Examples

Compare Speed Performance in Frame-Based Processing Mode Using Simulink Profiler

Process signals using frame-based processing and compare the performance using Simulink profiler.

Open Model

Detect Air Compressor Sounds in Simulink Using Wavelet Scattering

Use the Wavelet Scattering block and a pretrained deep learning network to classify audio signals.

Open Script

Generate DSP Applications with MATLAB Compiler

Use the MATLAB® Compiler™ to create a standalone application from a MATLAB® function that uses System objects from DSP System Toolbox™.

Open Live Script

Code Generation for Parametric Audio Equalizer

Model an algorithm specification for a three band parametric equalizer which will be used for code generation.

Open Script

Programmable FIR Filter for FPGA

Implement a programmable FIR filter for hardware. You can program the filter to the required response by loading the coefficients into internal registers using a memory-style interface.

Open Model

Videos

Frame-Based Processing in Simulink
How to process signals as frames in Simulink.

How to Filter Signals in Simulink
How to filter signals in Simulink using tunable and nontunable filters in DSP System Toolbox.

Model Multirate Systems in Simulink with DSP System Toolbox
Model multirate systems in Simulink using multirate blocks in DSP System Toolbox.