Oct. 1995 Level of Government: State Function: Disaster Management Problem/situation: When earthquakes or other disasters strike, it's difficult to give a location for features without addresses.

A 45-foot Response Boat-Medium from Coast Guard Station Seattle and an MH-65 Dolphin helicopter from Coast Guard Air Station Port Angeles conduct night hoisting training on April 4, 2016. (U.S. Coast ...

A system that improves the accuracy of the GPS satellite navigation system. A satellite's positioning accuracy is impeded by errors in its clock and signal delays caused by atmospheric conditions.

On June 30, 2020 the Coast Guard switched off the last Differential Global Positioning System (DGPS) signals after more than 25 years of service. With the improved accuracy and integrity of ...

provide some protection against interfering signals. Although quantitative measures of resistance to RF interference, such as jammer-to-signal ratio (J/S) measured in decibels (dB) do exist, these ...

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A "Differential GPS" guidance system with 2-centimeter resolution keeps Alaskan snowplow drivers on the road even in zero-visibility white-out conditions. Alaska's Richardson Highway links Valdez to ...

Raytheon has demonstrated differential global positioning system (DGPS) precision approaches performed by a civil aircraft using the manufacturer's ground station originally developed for the military ...