How many GPS satellites are used to determine the accurate position of a GPS receiver?
A)three
B)four
C)five
D)six

Question

Quizplus · Accepted Answer

The accurate position of a GPS receiver is determined by receiving signals from at least four GPS satellites. Three satellites can provide a rough estimate of the position but cannot determine elevation or altitude. Four satellites are needed to determine three-dimensional position and the time offset between the receiver and the satellites.

How Many GPS Satellites Are Used to Determine the Accurate