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WorksheetsChapter 1 GNSS
Total questions: 12
Worksheet time: 9mins
Global Navigation Satellite System can be used in certain devices that fitted with a receiver for providing ............
Position
Navigation
Tracking
Weather
Global coverage for each system is generally achieved by a satellite constellation of 18–30 satellites at .........................
Medium Earth Orbit
Lower Earth Orbit
High Earth Orbit
Geosynchronous Orbit
What makes an object will stay in its orbit and do not get off?
Momentum
Gravity
Material
Centrifugal
How many GPS Satellites are currently in orbit around the earth?
18
22
24
12
How close to your actual position can a GPS receiver measure?
Within 10.0 cm
Within 1.0 m
Within 10.0 m
Within 20.0 m
The three segments of the GPS system are the space segment, the user segment, and the .............. segment.
control
interface
computer
human
What are the clocks called that are used by GPS satellites to very accurately keep time?
Millisecond clocks
Microsecond clocks
Nanosecond clocks
Atomic clocks
How many measurements (minimum) must be made to give us an accurate estimation trilateration of our position on the earth?
1
2
3
4
The purpose of the ................ segment is to Monitor, Predict, Calibrate and Update transmissions from satellites
Control
User
Space
Human
These are the ground antenna station for GPS, EXCEPT
Ascension
Kwajalein
Schriever
Diego Garcia
These are the correction for any delays the signal experiences as it travels through the atmosphere
Multipath effects
Geometric dilution of precision
Artificial sources of interference
Ephemeris effect
How long does it take a GPS satellite to orbit the earth?
4 Hours
8 Hours
12 Hours
24 Hours
