The easiest way is differential GPS like surveyors use. Add an artificial reference satellite on ground with receiver and calculates errors between its known location and GPS location. This can do mm accuracy even with just civilian CA code.
GPS accuracy greatly improved when a new feature called WAAS (wide area agumentation system) was built in. It is used with GPS systems in the ground to make accuracy better by sending accuracy to a main station, which is then routed to your GPS.
GPS
The WAAS systems improves the accuracy, integrity, and availability in a GPS system.The WAAS specification requires the system detect errors in the GPS
improved transaction speed and accuracy
No it does not. GPS satellites are geosynchronous, so they are in the same place 24 hours a day.
Newer Garmin GPS receiver WAAS (Wide area augmentation system) capability can improve accuracy, averaging less than three meters. No additional equipment or fees to take advantage of WAAS. Users can also get a better differential GPS (DGPS), to correct an average of three to five meters accuracy of GPS signals within range. To get the corrected signal, users must be out by the differential GPS beacon receiver and beacon antenna. Now we use the following GPS receiver for our bus railway system.
You people honestly think I'm going to answer that question? If so, the you need to look it up somewhere else but here. Because I'm keeping my mouth shut!! Did that answer your question?
GPS means Global Positioning System. This system includes 24 satellites that transmit microwave signals, allowing us to determine our location on the planet's surface with amazing accuracy. See link for details.
haha your so stupid for reading this
A Thermometer's accuracy can be improved if it is placed in an area where there is not an object that touches it that can influence a temperature shift.
A Global Positioning System (GPS) device is a technological device using advance space/satellite technologies to pinpoint the position of the device anywhere on the planet to a high degree of accuracy.
The accuracy for civilian use is four to five meters but for US military use the accuracy is 100%