pytdoa is a library that allows for multilateration on low-cost, GPS-free receivers.
What pytdoa expects is a set of of raw iq signals belonging to a set of receivers with the target signal. Because we are not relying on GPS timing, the expected format of each of the raw iq files is:
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| Ref Signal (N samples) | Target Signal (N samples) | Ref Signal (N samples) |
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- Total samples: 3*N
We need the Ref Signal to be able to align samples. The last chunk can be also used to estimate the drift of the receiver over the whole sampling process. It is also critical that when switching frequencies, no samples were lost, otherwise this methodology cannot be applied.
If you use this software please consider citing us:
@inproceedings{lizarribar2024oran,
title={ORAN-Sense: Localizing Non-cooperative Transmitters with Spectrum Sensing and 5G O-RAN},
author={Lizarribar, Yago and Calvo-Palomino, Roberto and Scalingi, Alessio and Santaromita, Giuseppe and Bovet, G{\'e}r{\^o}me and Giustiniano, Domenico},
booktitle={IEEE INFOCOM 2024-IEEE Conference on Computer Communications},
pages={1870--1879},
year={2024},
organization={IEEE}
}