Global Positioning System (GPS):
Global Positioning System provides time and location-based information to a GPS receiver, located anywhere on or near the earth surface. GPS works in all weather conditions, provided there is an unobstructed line of sight communication with 4 or more GPS satellites. GPS is managed by the US Air Force.
- Component of GPS system:
- Space Segment
- Control segment
- User segments
Satellite Navigation System (SNS):
A satellite navigation system is a system that uses satellites to provide autonomous geo-spatial positioning. It allows small electronic receivers to determine their location to high precision. It is based on a wide network of artificial satellites that transmit radio signals in medium earth orbit.
GNSS consist of three main satellite technologies:
Let’s see the difference between GPS and Satellite Navigation System:
|S.NO.||GPS||Satellite Navigation System|
|1||GPS is a fully-functional satellite-based navigation system.||Satellite navigation is a system based on a wide network of artificial satellites.|
|2||GPS satellites transmit continuous microwave radio signals composed of two carriers, two codes and a navigation message.||It describes constellation of satellites that provide navigation, positioning and timing services globally.|
|3||GPS is maintained by the U.S. Department of Defense.||It provide autonomous geospatial positioning|
|4||GPS satellites broadcast timely signals via radio to the GPS receivers.||Satellite navigation systems help us to drive across unknown roads, whether by land, sea or air, etc.|
|5||GPS is a joint name for group of satellites that are orbiting around the earth.||Satellite Navigation is a special software that makes use of GPS signals|
|6||It processes the signal using its built-in software.||The position, velocity and time estimates obtained from the satellite navigation system.|
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