dkpy

dkpy is a D-K iteration library written in Python, aiming to build upon python-control.

The package is currently a work-in-progress, and no API stability guarantees will be made until version 1.0.0.

Example

import dkpy
import numpy as np

dk_iter = dkpy.DkIterFixedOrder(
    controller_synthesis=dkpy.HinfSynLmi(
        lmi_strictness=1e-7,
        solver_params=dict(
            solver="MOSEK",
            eps=1e-9,
        ),
    ),
    structured_singular_value=dkpy.SsvLmiBisection(
        bisection_atol=1e-5,
        bisection_rtol=1e-5,
        max_iterations=1000,
        lmi_strictness=1e-7,
        solver_params=dict(
            solver="MOSEK",
            eps=1e-9,
        ),
    ),
    transfer_function_fit=dkpy.TfFitSlicot(),
    n_iterations=3,
    fit_order=4,
)

omega = np.logspace(-3, 3, 61)
block_structure = np.array([[1, 1], [1, 1], [2, 2]])
K, N, mu, info = dk_iter.synthesize(P, n_y, n_u, omega, block_structure)

Contributing

To install the pre-commit hook, run

$ pip install -r requirements.txt
$ pre-commit install

in the repository root.

Citation

If you use this software in your research, please cite it as below or see CITATION.cff.

@software{dahdah_dkpy_2024,
    title={{decargroup/dkpy}},
    url={https://github.com/decargroup/dkpy},
    author={Steven Dahdah and James Richard Forbes},
    version = {{v0.1.5}},
    year={2024},
}