Vehicle electronic compass work principle

Vehicle electronic compass work principle
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GPS also called satellite positioning, GPS receiver to receive the can be used for GPS clock accurate to ns level time information; Used to forecast the next few months in the brief satellite location forecast star calendar; Used to calculate when positioning satellite coordinates of radio star for calendar, precision for a few meters to dozens of meters (each satellite is different, change); And GPS system information, such as satellite condition and so on.
GPS receiver to yards of measurement can get satellite receiver to distance, because it contains the satellite receiver and atmospheric transmission error clock error
Poor, is called pseudorange. A code of 0 measured pseudorange called UA yards pseudorange, the accuracy of about 20 meters or so, to P yards of measured pseudorange called P yards pseudorange, the accuracy of about 2 meters.