Standalone Perturbation Signal Generation
R2026bSimulink® Control Design™ software enables you to generate standalone perturbation signals in Simulink for desktop simulations and hardware implementations with code generation. You can inject these signals into your plant models to collect and analyze response data, allowing you to perform custom offline or online frequency response estimation and identify plant characteristics. With the available blocks, you can generate pseudorandom binary sequence (PRBS), superimposed sinusoidal, and sequential sinusoidal perturbation signals. Additionally, the sinusoidal signal generator blocks allow you to generate three-phase sinusoidal perturbation signals to identify the frequency response of three-phase AC power systems.
Blocks
 | Start-Stop Generator | Generate start-stop signal used by signal generation, estimation, and autotuning blocks (Since R2024a) |
 | PRBS Signal Generator | Generate PRBS input signal for plant frequency response estimation (Since R2024a) |
 | Sinestream Signal Generator | Generate sinestream input signal for plant frequency response estimation (Since R2024a) |
 | Superposition Signal Generator | Generate superposition input signal for plant frequency response estimation (Since R2024b) |
Topics
- Use Sinestream Signal Generator Block for Offline Frequency Response Estimation
Estimate frequency responses offline using the Sinestream Signal Generator block. (Since R2024a)
- Generate PRBS Input Signals Using PRBS Signal Generator Block
Estimate frequency responses offline using the PRBS Signal Generator block. (Since R2024a)
- Use Superposition Signal Generator Block for Offline Frequency Response Estimation
Estimate frequency responses offline using the Superposition Signal Generator block. (Since R2024b)
Featured Examples
Use Start-Stop Generator and PRBS Signal Generator Blocks for Estimation at Multiple Operating Points
Perform frequency response estimation at multiple operating points using Start-Stop Generator and PRBS Signal Generator blocks.
Measure Boost Converter Output Impedance Using Signal Generator Blocks
Use the Sinestream Signal Generator and PRBS Signal Generator blocks to create input signals to measure the output impedance of a boost converter through an offline frequency response estimation experiment.
Estimate Battery Impedance Using Signal Generator Blocks
Use frequency response estimation to estimate the impedance of a battery modeled using Simscape™ Battery™ software.
Measure Three-Phase Electric Circuit Impedance Using Sinestream Signal Generator Block
Measure the three-phase electric circuit impedance through an offline frequency response estimation experiment.
