The Software Knights
MIT-07-04 MIT-07-17 MIT-07-26 MIT-07-30
AMEER HAMZA KASHIF MURTAZA RIZWAN FIDA RABIA EJAZ
SATELLITE NAVIGATION
KASHIF MURTAZA
What is a Satellite?
A satellite is basically any object that revolves around a planet in a circular or elliptical path. The moon is Earth's original, natural satellite, and there are many manmade (artificial)
The path a satellite follows is an orbit. In the orbit, the farthest point from Earth is the apogee, and the nearest point is the perigee. Artificial Satellites generally are not mass produced, most satellites are custom build to perform their intended function.
Navigation
Find the position and direct the course of ship, aircraft, car, etc, using satellite
GLOBAL POSITIONING SATELLITE
A system was introduced to find position on earth using satellite is global positioning satellite system Set of Satellites and control systems, determine location anywhere on earth
GLOBAL POSITIONING SATELLITE
satellite-based designed to provide positioning and timing information: developed by the US Dept. of Defence 24 hours/day, 7 days/week under any weather conditions anywhere in the world
RABIA EJAZ
Main Components of GPS
Space component Control component User component
Space Component
24 satellites in constellation orbit every 12 hours at 11,500 miles 4 satellites in each of 6 orbital planes transmit a uniquely coded radio signal
Control Component
ground-based monitoring and upload stations control orbit and timing information
User Component
military and civilian users navigation and positioning applications on land, sea, in the air and in space
RIZWAN FIDA
How does GPS work?
the receiver picks up the signals from the satellites uses signal travel time to calculate distance to the satellites triangulates to determine position of the receiver
Speed of Light Measurement
measure how long it takes GPS signal to get to us multiply elapsed time by 186,000 miles/sec time (sec) x 186,000 = miles from satellite to receiver
Satellite Navigation
Using GPS to position Using a digital map for routes Overlaying the GPS raster over digital maps
AMEER HAMZA
Use of Satellite Navigation