Individual skill
excitation-signal-design
Design effective excitation signals (step tests) for system identification and parameter estimation in control systems.
tasks/hvac-control/environment/skills/excitation-signal-design/SKILL.md
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# Excitation Signal Design for System Identification
## Overview
When identifying the dynamics of an unknown system, you must excite the system with a known input and observe its response. This skill describes how to design effective excitation signals for parameter estimation.
## Step Test Method
The simplest excitation signal for first-order systems is a step test:
1. **Start at steady state**: Ensure the system is stable at a known operating point
2. **Apply a step input**: Change the input from zero to a constant value
3. **Hold for sufficient duration**: Wait long enough to observe the full response
4. **Record the response**: Capture input and output data at regular intervals