In satellite navigation what does 'GPS' stand for?

Global Positioning System|||Global Positioing System.|||global positioning system|||it stands for Global Positioning System|||global positioning system?|||Global positioning system|||Global Positioning System|||Yes their all correct!|||global positioning satelite|||Global Positioning System|||Global Positioning System|||Could it be Global Positioning System?|||global positioning satellite|||global positioning system|||global postioning system, GPS is great. i've got one in my car