27-01-2012, 04:40 PM
Global Positioning System
[attachment=16738]
INTRODUCTION
The Global Positioning System (GPS) is a space-based fully functional global navigation satellite system (GNSS) involving satellites and computers that can determine the latitude and longitude of a receiver on Earth by computing the time difference for signals from different satellites to reach the receiver. Thus, it provides reliable location and time information in all weather and at all times and anywhere on or near the Earth when and where there is an unobstructed line of sight to four or more GPS satellites. It is actually a navigation and precise-positioning tool.
What is GLOBAL POSITIONING SYSTEM (GPS)?
The Global Positioning System, commonly known as GPS, is a network of
satellites that determines a ground based user’s specific latitude, longitude, and
altitude. GPS devices have become more integrated in our daily lives through
navigation computers in cars to emergency locators in cellular phones. GPS can
even keep the time accurate on watches and VCRs. Portable GPS receivers are
becoming increasingly popular for young and old alike. For the GPS to work there
are twenty-four satellites in Earth’s orbit.
HISTORY OF GLOBAL POSITIONING SYSTEM (GPS):-
Global positioning grew from the use of radar tracking at the end of World War II when radar stations were placed along the coastlines and inshore for ships and planes to orient themselves. But data and distance were limited and subject to weather and atmosphere interference. With the launch of the Sputnik man-made satellite program by the Soviet Union in the late 1950s, American scientists learned they could precisely locate the satellite by the frequency of its signal.
Navigation
Navigation is the process of getting from one location to another. This was the what the Global Positioning System was designed for. The GPS system allows us to navigate on water, air, or land. It allows planes to land in the middle of mountains and helps medical evacuation helicopters save precious time by taking the best route.
[attachment=16738]
INTRODUCTION
The Global Positioning System (GPS) is a space-based fully functional global navigation satellite system (GNSS) involving satellites and computers that can determine the latitude and longitude of a receiver on Earth by computing the time difference for signals from different satellites to reach the receiver. Thus, it provides reliable location and time information in all weather and at all times and anywhere on or near the Earth when and where there is an unobstructed line of sight to four or more GPS satellites. It is actually a navigation and precise-positioning tool.
What is GLOBAL POSITIONING SYSTEM (GPS)?
The Global Positioning System, commonly known as GPS, is a network of
satellites that determines a ground based user’s specific latitude, longitude, and
altitude. GPS devices have become more integrated in our daily lives through
navigation computers in cars to emergency locators in cellular phones. GPS can
even keep the time accurate on watches and VCRs. Portable GPS receivers are
becoming increasingly popular for young and old alike. For the GPS to work there
are twenty-four satellites in Earth’s orbit.
HISTORY OF GLOBAL POSITIONING SYSTEM (GPS):-
Global positioning grew from the use of radar tracking at the end of World War II when radar stations were placed along the coastlines and inshore for ships and planes to orient themselves. But data and distance were limited and subject to weather and atmosphere interference. With the launch of the Sputnik man-made satellite program by the Soviet Union in the late 1950s, American scientists learned they could precisely locate the satellite by the frequency of its signal.
Navigation
Navigation is the process of getting from one location to another. This was the what the Global Positioning System was designed for. The GPS system allows us to navigate on water, air, or land. It allows planes to land in the middle of mountains and helps medical evacuation helicopters save precious time by taking the best route.
