Try OpenDPD Studio in your browser →

No installation. Explore example data or upload your own CSV, train PA/DPD models on shared CUDA compute, and download your checkpoints. Temporary data and results are deleted within 24 hours.

OpenDPD

Model a power amplifier. Train a digital predistorter. Understand the result.

OpenDPD is a PyTorch framework for power amplifier (PA) modeling and digital predistortion (DPD), developed by the Efficient Machine Intelligence Lab at TU Delft. Use OpenDPD Studio in the browser or locally for a guided workflow, or automate experiments with the CLI and Python API. All three use the original OpenDPD training core.

Documentation · Studio walkthrough · Examples & Colab · Papers & citation

What's new

OpenDPD 2.2.0 brings OpenDPD Studio to the desktop and browser:

• Guided experiments: explore built-in I/Q data, train and test PA/DPD models, and choose from the original backbone registry.
• Live feedback: separate epoch and batch progress bars, NMSE and other task metrics, live signal plots, reconnectable experiments and a Stop control.
• Download models while training: save the best checkpoint so far; after training, download the selected final model. Compare compatible runs and export reports.
• Browser and local workbench: nine interface languages, English by default, CUDA when available, touch-friendly plots and system light/dark themes.

Bring your own CSV: upload UTF-8 CSV with two complex columns or four real I/Q columns, up to 25 MiB and 1,000,000 paired samples. Every row is validated in quarantine before preview; rejected uploads are deleted. Code, package and checkpoint uploads are unavailable in the public app.

For a hosted installation, the public Studio deployment guide covers GitHub Pages, a Cloudflare Tunnel and isolated local VM compute, with temporary sessions and automatic file deletion within 24 hours.

Feature history · Verified platform status

Get started with Studio

Open the hosted Studio now, or install the packaged local app with Python 3.10–3.13:

python -m pip install "opendpd[gui]==2.2.0"
opendpd gui

The wheel includes the frontend; Node.js is not needed. For development from source, also install Git and Node.js 22.22+:

git clone https://github.com/lab-emi/OpenDPD.git
cd OpenDPD
python -m venv .venv
source .venv/bin/activate
python -m pip install -e ".[gui]"
npm --prefix frontend ci
npm --prefix frontend run build
opendpd gui

This opens Studio locally in your browser. For Windows, a native desktop window, GPU setup, or a core-only installation, see Installation.

Click Get Started → Try a built-in dataset → DPA_200MHz. Inspect the data and continue to your first experiment. Use Starting settings → Quick trial to check the pipeline, then choose Full training for a longer experiment.

The PA → DPD workflow

A DPD result evaluated through a PA model is a simulation. Exported u = DPD(x) is the PA input; a physical PA measurement is needed to establish measured linearization performance. See the Studio walkthrough and measured DPD guide.

Choose your next step

Contribute & cite

Contributions of models, tests and documentation are welcome. Start with CONTRIBUTING.md; see testing and how we maintain the docs.

If you use OpenDPD in research, cite the OpenDPD paper. BibTeX and related papers · CITATION.cff

Chang Gao — Project Leader · Yizhuo Wu — Leading Developer. Meet the team · EMI Lab