gr-doa is a demonstration on the phase synchronization capability of Ettus Research's USRP X440. We provide apps to determine the accuracy of phase synchronization achieved and to estimate DoA which fundamentally requires accurate phase synchronization across the receive streams.
UHD >= 4.8.0.0
gnuradio >= 3.11.0.0
armadillo >= 12.6.7
octave (Tested 8.4.0)
octave-signal (Tested 1.4.6)
scipy (Tested 1.16.0)
oct2py (Tested 5.8.0)
- A wrapper to the USRP source block for a syncronised X440
- Relative phase offset measurement and correction
- Antenna element calibration for linear arrays
- MUSIC algorithm for linear arrays
- Root-MUSIC algorithm for linear arrays
Ubuntu 24.04
For the installation guide go to gr-doa wiki
For a concise description of the steps involved to set up the programm: https://github.com/EttusResearch/gr-doa/wiki
For detailed description: gr-doa/docs/whitepaper/doa_whitepaper.pdf
This repository is considered mature and is not under active development. While the project remains available for use as-is, new issues, feature requests, or support inquiries may not receive timely or detailed responses. Community contributions are still welcome, but maintainers may respond on a best‑effort basis.