NRC 140 5.0

What does GNSS stand for?

• Global Network Security System

• Global Network Satellite System

• Global Navigation Satellite System

• General Navigation Space System

Which organization operates the Global Positioning System (GPS)?

• Russian Aerospace Defense Forces

• Department of Defense (DoD), USA

• China National Space Administration

• European Space Agency

What is the purpose of the Precise Positioning Service (PPS) in GPS?

• For all worldwide civilian users

• To provide better coverage at higher latitudes

• To complete the construction of the BeiDou Navigation Satellite System

• For authorized users for security reasons

Which country operates the BeiDou Navigation Satellite System?

• European Space Agency

• Russia

• China

• India

What is the main goal of the Galileo satellite system?

• To reach Full Operational Capability (FOC) in 2020

• To complete the construction of the BeiDou Navigation Satellite System

• To be interoperable with GPS and GLONASS

• To provide services to the Asia-Pacific region

What is the Quasi-Zenith Satellite System also known as?

• Galileo

• GLONASS

• MICHIBIKI

• BeiDou

Which organization is developing the Indian Regional Navigation Satellite System?

• Japan Aerospace Exploration Agency (JAXA)

• China National Space Administration

• European Space Agency

• Indian Space Research Organization (ISRO)

What is the main purpose of Differential GPS (DGPS)?

• To improve the accuracy of GPS by using two receivers

• To provide sub-meter accuracy

• To broadcast correction signals from geostationary satellites

• To rely on networks of base stations on the ground

What is the main source of error caused by the relative position of GNSS satellites?

• Position/Geometric Dilution of Precision (PDOP or GDOP)

• Atmosphere Refraction

• Multipath Effect

• Satellite Time and Location (Ephemeris)

How does a GNSS receiver calculate its specific location on Earth?

• By measuring distances using trilateration

• By broadcasting correction signals from geostationary satellites

• By comparing the time required to receive each satellite's signal

• By measuring angles using triangulation