| A | B |
|---|
| The system is affected only by severe weather | providing a worldwide common grid reference based on the earth-fixed coordinate system |
| GPS is based upon the concept of | ranging and triangulation |
| three satellites w/ timing corrections | The GPS receiver mathematically determines its position by..... The receiver needs at least ..... |
| Two levels | GPS provides ...... of service |
| False | The system provides moderately accurate position and velocity information |
| The GPS receiver matches each satellite's CA code | with an identical copy of the code contained in the receiver's database |
| Department of Defense (DOD) | GPS is a United States satellite- based radio navigational, positioning, and time transfer system operated by... |
| Space | In addition to knowing the distance to a satellite, a receiver needs to know the satellite's exact position in ........ |
| Using the travel time | A GPS receiver measures distance from a satellite using...... |
| Standard Positioning Service (SPS) provides | users, horizontal positioning accuracy of 200 meters with a probabili9ty of 95% and 300 meters with a probability of 90%. |
| GPS uses | World Geodetic System of 1984 datum |
| 24, five | The GPS constellation of .... satellites is designed so that a minimum of .......are always observable by a users anywhere on earth |
