Video encyclopedia

14/02/1989 First GPS satellite is launched


Why The US Military Made GPS Free-To-Use


GPS History and basic knowledge


A brief history of GPS (from CNN)

In 1983 a Korean Boeing 747 was shot down by Russian Su-15 fighter. The airliner flew inside military airspace due the navigation error. American president Ronald Reagan decided to make U. S. military satellite navigation system freely available for civilian use. First of the 24 GPS satellites was launched six years later.
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    • Essentials 

    • History 

    • Basic concept of GPS 

    • Structure 

    • Applications 

    • Communication 

    • Navigation equations 

    • Error sources and analysis 

    • Accuracy enhancement and surveying 

    • Regulatory spectrum issues concerning GPS receivers 

    • Other systems