The packet over SONET/SDH PHY (POS-PHY) Level 4 interface, first developed by the SATURN Development Group, was later adopted by the Optical Internetworking Forum (OIF) as the System Packet Interface ...

The resulting dual-loop PLL can attenuate jitter in extremely noisy ... This GNSS Multi-constellation Digital IP supports all the constellation GPS, Global Positioning Satellite (USA), GALILEO (Europe ...