TIMATION is an acronym of TIMe navigATION, proposed by the U.S. Naval Research Laboratory (NRL). Timation was developed by Roger Easton for the Naval Air Systems Command. The current Global Positioning System (GPS) is based on the Timation system, and their principles of operation are fundamentally identical. One of the significant advantages of such a system is that its user size is unlimited.
Born in Craftsbury, Vermont, Easton attended Craftsbury Academy and Middlebury College, and after attending the University of Michigan for one semester, he joined NRL. He spent his career at NRL until his retirement in 1980, continuing to consult for a number of years. In 2006, he received the National Medal of Technology.