Military
Military applications include devices similar to consumer sport products for foot soldiers (commanders and regular soldiers), small vehicles and ships, and devices similar to commercial aviation applications for aircraft and missiles. Examples are the United States military's Commander's Digital Assistant and the Soldier Digital Assistant. Prior to May 2000 only the military had access to the full accuracy of GPS. Consumer devices were restricted by selective availability (SA), which was scheduled to be phased out but was removed abruptly by President Clinton. Differential GPS is a method of cancelling out the error of SA and improving GPS accuracy, and has been routinely available in commercial applications such as for golf carts. GPS is limited to about 15 meter accuracy even without SA. DGPS can be within a few centimeters.
Read more about this topic: GPS Navigation Device
Famous quotes containing the word military:
“Nothing changes my twenty-six years in the military. I continue to love it and everything it stands for and everything I was able to accomplish in it. To put up a wall against the military because of one regulation would be doing the same thing that the regulation does in terms of negating people.”
—Margarethe Cammermeyer (b. 1942)
“My faith is the grand drama of my life. I’m a believer, so I sing words of God to those who have no faith. I give bird songs to those who dwell in cities and have never heard them, make rhythms for those who know only military marches or jazz, and paint colours for those who see none.”
—Olivier Messiaen (1908–1992)
“War both needs and generates certain virtues; not the highest, but what may be called the preliminary virtues, as valour, veracity, the spirit of obedience, the habit of discipline. Any of these, and of others like them, when possessed by a nation, and no matter how generated, will give them a military advantage, and make them more likely to stay in the race of nations.”
—Walter Bagehot (1826–1877)