FRIEDT, Jean-Michel.
 Passive reception of Two-Way Satellite Time and Frequency Transfer (TWSTFT) signals from a geostationary satellite, or GPS upside down.
<strong>Proceedings of the GNU Radio Conference</strong>, [S.l.], v. 7, n. 1, oct. 2022.
Available at: &lt;<a href="https://pubs.gnuradio.org/index.php/grcon/article/view/131" target="_new">https://pubs.gnuradio.org/index.php/grcon/article/view/131</a>&gt;. Date accessed: 27 dec. 2024.