About GPS Modules and Devices
Global positioning system (GPS) modules and GPS devices are radio-navigational devices that provide accurate position information about objects on Earth, based on information from orbiting satellites. Equipped with rubidium atomic clocks, 24 GPS satellites in high-orbital planes use coarse acquisition (C/A) codes to communicate with GPS ground stations. These Earth-based control segments monitor almanac and ephemeris signals from GPS satellites, and communicate the small corrections that become necessary when there are changes to either a satellite’s orbit or to Earth’s ionosphere. By using the information in the almanac and ephemeris signals, GPS receivers can determine the time required to transmit a signal. Because that time is proportional to the distance traveled, GPS modules and devices can determine the arc on which the GPS receiver lies and, therefore, the intersection point and position.
Engineering Web: GPS Modules and Devices - Machine Design
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The Machine Design Tech Insider The snap-in mounted devices can handle large inrush currents. |
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Most Viewed | Machine Design (www.navcomtech.com), has an agreement with Navtech Seminars & GPS Supply Co., Alexandria, Va. |
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Test instruments in Texas | Among the developments at NI Week:... |
