02. How does GPS work?

GPS segments are:

Select THREE segments:

• user segment

• ground segment

• space segment

• control segment

• satellite segment

GPS space segment consists of:

• 32 satellites of which 24 are active

• 24 satellites

• 12 satellites

• 32 satellites

The ground stations monitor:

• the altitude and direction of the satellites.

• other navigation systems.

• the number of satellites working.

• the path and velocity of the satellites' orbits.

The user segment is the GPS receiver.

• True

• False

The type of signals sent by GPS satellites are:

• global positions

• radio signals

• Bluetooth

• Wifi

Satellites transmit which TWO exact pieces of information:

• the position of the GPS receiver

• the speed of the satellite

• the position above the Earth

• the time

The GPS receiver collects the information from a satellite and calculates its distance from the satellite using the formula: DISTANCE = SPEED X what?

What is the minimum number of satellites required to locate the position of a GPS receiver?

• 1

• 2

• 3

• 24

GPS calculates the position of a GPS receiver using the intersection point, this is called:

• trilateration

• intersection

• trisection

• trintersection

Errors caused when the GPS signal slows passing through the ionosphere and troposphere are known as:

• Atmospheric effects

• Satellite constellation configuration

• Selective availability

• Satellite visibility