GPS Principles and ApplicationsGPS Principles and Applications Luo Guo By obtaining the distance from the user to several satellites, the user\'s position is calculated! Any more? GPS Principles and ApplicationsGPS System OverviewGPS Positioning PrincipleAGPS GPS ApplicationsGPS System OverviewGPS―Global Positioning System; A military positioning system established under the leadership of the US Department of Defense, open to civilian use, but with lower positioning accuracy than military use; The entire system consists of a ground monitoring system, an on-orbit satellite system, and user receivers; 24 satellites (3 spare), 6 orbital planes, an orbital altitude of approximately 20,200 km, an operating speed of approximately 3.9 km/s, and an operating cycle of 11 hours and 58 minutes; At any time on the ground, it is guaranteed that at least 4 stars can be observed, and at most 11 stars can be observed; GPS Positioning Principles (X2, Y2, Z2) (X1, Y1, Z1) (X3, Y3, Z3)r1r2 r3(x,y,z)?r12 = (x - X1)2 + (y - Y1)2 + (z……
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