By Topic

Navstar Global Positioning System: A Satellite Based Microwave Navigation System

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Lassiter, E.M. ; Aerosp. Corp., El Segundo, CA, USA

The NAVSTAR Global Positioning System is a satellite-based navigation system that will provide extremely accurate three-dimensional position fixes and timing information to properly equipped users anywhere on or near the earth. User positioning requires the determination of the times of transit for satellite generated signals to reach the user. Satellite positions and other necessary system information are transmitted to the satellites for modulation onto the navigation signal. By 1977, six satellites will be deployed to permit demonstration and evaluation tests. The system will then be expanded into an operational 24-satellite system. This paper reviews the design concept and system performance characteristics for GPS. Emphasis will be placed on the nature and role of the satellite-to-ground L-band link including: the design constraints leading to the frequencies and bandwidths selected; the dual frequency technique for ionospheric calibration; the GPS signal structure and its role in signal acquisition, user navigation and providing resistance to electronic counter-measures.

Published in:

Microwave Symposium, 1975 IEEE-MTT-S International

Date of Conference:

12-14 May 1975