Precise Time and Frequency for Navy Applications

Through the years, the Navy has seen advances in navigationtechnology flow through their tactical navigation systems. These include theAN/WSN-5, AN/WSN-7, NAVSSI, and GPS. With each navigation system enhancement camemore accurate, precise, and complete navigation information at higher and higherdata rates, culminating in today's ability to maintain high accuracy (even injamming), provide for a single shipwide navigation solution, utilize and synthesizemultiple navigational sub-systems, and, provide operational availability in excessof 99%. However, the engineering efforts that have been performed and applied withinthe navigation problem domain, have not been applied when addressing how the entirenavigation system might provide its information to those