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What Is GPS

The Global Positioning System (GPS) is a satellite-based navigation system that provides positioning and timing data to users. It consists of three segments: the space segment contains 24 satellites that transmit timing signals, the control segment maintains the satellite positions and clocks, and the user segment contains GPS receivers that use the satellite signals to calculate location and time. GPS provides location services to both civilian and military users worldwide.

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17 views2 pages

What Is GPS

The Global Positioning System (GPS) is a satellite-based navigation system that provides positioning and timing data to users. It consists of three segments: the space segment contains 24 satellites that transmit timing signals, the control segment maintains the satellite positions and clocks, and the user segment contains GPS receivers that use the satellite signals to calculate location and time. GPS provides location services to both civilian and military users worldwide.

Uploaded by

Psalma Goronga
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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What is GPS?

The Global Positioning System (GPS) is a U.S.-owned utility that provides


users with positioning, navigation, and timing (PNT) services. This system
consists of three segments: the space segment, the control segment, and
the user segment. The U.S. Air Force develops, maintains, and operates the
space and control segments.

 Space Segment

The space segment consists of a nominal constellation of 24


operating satellites that transmit one-way signals that give the current GPS
satellite position and time. LEARN MORE
 Control Segment

The control segment consists of worldwide monitor and


control stations that maintain the satellites in their proper orbits through
occasional command maneuvers, and adjust the satellite clocks. It tracks
the GPS satellites, uploads updated navigational data, and maintains health
and status of the satellite constellation. LEARN MORE
 User Segment

The user segment consists of the GPS receiver equipment,


which receives the signals from the GPS satellites and uses the transmitted
information to calculate the user's three-dimensional position and
time. LEARN HOW GPS IS USED

GPS Services
GPS satellites provide service to civilian and military users. The civilian
service is freely available to all users on a continuous, worldwide basis. The
military service is available to U.S. and allied armed forces as well as
approved Government agencies.

 Augmentations

A variety of GPS augmentation systems and techniques are


available to enhance system performance to meet specific user
requirements. These improve signal availability, accuracy, and integrity,
allowing even better performance than is possible using the basic GPS
civilian service. LEARN MORE
 Performance

The outstanding performance of GPS over many years has


earned the confidence of millions of civil users worldwide. It has proven its
dependability in the past and promises to be of benefit to users, throughout
the world, far into the future. LEARN MORE

The Future of GPS


 Modernization

The United States is committed to an extensive


modernization program, including the implementation of a second and a
third civil signal on GPS satellites. The second civil signal will improve the
accuracy of the civilian service and support some safety-of-life applications.
The third signal will further enhance civilian capability and is primarily
designed for safety-of-life applications, such as aviation.

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