APPARATUS AND METHOD FOR GENERATING GPS TIME

摘要

Disclosed therein is an apparatus for generating a GPS (Global Positioning System) time that includes: a storing portion for storing a first GPS time corresponding to a 1PPS (Pulse Per Second) signal generated from a GPS receiver for synchronization with an INS (Inertial Navigation System); and a GPS time calculating portion for, upon reception of the 1PPS signal from the GPS receiver, adding a previous first GPS time stored in the storing portion and a period of the 1PPS signal to compute a second GPS time, and storing the first GPS time corresponding to the received 1PPS signal in the storing portion, thereby generating an accurate GPS time at a generation point of the 1PPS signal.