# Videos
Differentiators for SDR and GPU Part 2 of 2
In our newest video, we discuss with Lisa Perdue, our Product Line Director for Simulation, discusses how Skydel’s software-defined architecture and use of GPU’s differentiates from other similar technologies in the GNSSGlobal navigation satellite system (GNSS): A general term describing any satellite constellation that provides positioning, navigation, and timing (PNT) services on a global or regional basis. See also Simulation market.