PODCAST INTRODUCTION TO GPS FOR WATER INDUSTRY

Falling drops creating ripples in liquid. INTRODUCTION TO GPS FOR WATER INDUSTRY.

A long row of satellite dishes in the sunset. Outline.

Global Positioning System (GPS). A U.S. satellite navigation system Launched in 1978, operational by 1980 Has 31 active satellites (as of this writing) 12,500 miles above the earth Satellites orbit the earth twice daily i.e. pass over approximately the same world location every 12 hours 6 orbits (4 to 6 satellites per orbit).

Global Positioning System (GPS). GPS receivers read radio signals from orbiting satellites to calculate the exact spot of the receiver on the Earth by comparing the time taken by signals from 4 different GPS satellites to reach the receiver..

Satellite Launch. Falcon 9 rocket launching the first GPS III satellite, December 2018 Photo courtesy of SpaceX (founded by Elon Musk in 2002).

GPS IIIF Satellite. Lockheed Martin GPS IIIF. Manufacturer: Lockheed Martin To be launched in 2026. 60X greater anti-jamming to ensure U.S. and allied forces cannot be denied access to GPS in hostile environments.

How GPS Works. A GPS receiver calculates its position comparing signals received from at least 4 satellites. GPS accuracy 1-5 meter horizontal on smartphones centimeter-level horizontal and vertical with survey-grade GPS equipment..

How GPS Determines Position. [image] Graphical user interface AI generated content may be incorrect.

Class Activity: Trilateration. Group brainstorm with solid fill.

Class Activity: Results. Conventional (theodolite, total station) survey uses triangulation Measures angles GPS uses trilateration Measures distances Misconception: GPS uses triangulation..

Quiz: Section 2. 1) To function properly, a GPS receiver must receive signals from at least: A) 1 satellite B) 2 satellites C) 3 satellites D) 4 satellites.

Falling drops creating ripples in liquid. INTRODUCTION TO GPS FOR WATER INDUSTRY.