12 Questions
What is the basis for GNSS positioning?
Trilateration using ranging from multiple satellites
How many satellites are usually needed for GNSS receivers to fix position in 3D space?
4 satellites
What does GNSS stand for?
Global Navigation Satellite System
What is the speed of radio waves, as used in GNSS, in meters per second?
$3.0 \times 10^8$
What is the purpose of using Differential GNSS?
To improve accuracy by correcting signal errors
What is the role of GBAS in GNSS?
To provide precision approach and landing guidance for aircraft
What is the main purpose of SBAS in GNSS?
To improve the accuracy and integrity of basic GNSS signals
What is the purpose of calculating successive ranges for multiple satellites in GNSS?
To use trilateration to fix position in 3D space
What is the minimum number of satellites needed for satellite 'triangulation' in GNSS?
3-4 satellites
What is the main difference between trilateration and triangulation in the context of GNSS?
Trilateration uses distance measurements, while triangulation uses angle measurements
What is the primary advantage of having more satellites in GNSS?
Better location accuracy
What is the main purpose of technologies for indoor positioning in the context of GNSS?
To provide accurate location information within indoor environments
Test your knowledge on Global Navigation Satellite Systems (GNSS) with this quiz. Topics include different GNSS integrated into devices, GNSS positioning, Differential GNSS, GBAS, and SBAS. Ideal for students studying geospatial communication or anyone interested in understanding GNSS technology.
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