source:truck tracking webfleet solutions release time:2022-12-05 Hits: Popular:realtime gps tracker online
The error of C/A code is 29.3m to 2.93m. The general receiver uses C/A code to calculate the location. For its own safety, the United States added SA (Selective Availability) to the signal in the middle of the 1990s, which increased the error of the receiver to about 100 meters. SA was cancelled on May 2, 2000, so our current GPS accuracy should be within 20 meters.
The error of P code is 2.93m to 0.293m, which is one tenth of that of C/A. But P code can only be used by the US military. AS (Anti Spoofing) is a jamming signal added to P code.
In a word, Lao Mei is also very tired. A lot of satellites were sent for military positioning. Then I thought it was not worth it and wanted to make some money, so I developed signals for civilian use. The accuracy could not be too high, but people cursed me when the accuracy was low. Because GPS is in the hands of the United States. Although it is free to use, it is not practical for other countries to use it. The United States has processed the GPS signals in this area two days ago when it hit Afghanistan, and the positioning accuracy has become lower.
Russia has its own satellite positioning system, Global Navigation Satellite System. Europe should also develop its own positioning system, NAVSAT. China also has its own satellite positioning system, called Beidou, which is a dual satellite system. It can only locate its own country and nearby areas, and is currently only used for the military.
Read recommendations:
simple gps tracking manufacturer
Last article:Smartphone GPS, everywhere
Next article:About GPS receiver
Related Information
Dog gps tracker
2023-04-23GPS Tracking Factory
2023-04-11portable gps tracker
2023-04-11gps tracker no monthly fee
2023-03-16obd2 gps tracker verizon
2023-03-16simple gps tracking company
2023-04-23Cantrack Login
2023-04-23fleet gps trackers Processing
2023-04-23mini gps tracker
2023-04-11GPS Tracker
2023-04-11NB20 -4G Bluetooth Smart Pet Tracker
2022-06-21G500M-Mini GPS Tracker
2022-06-20G07L 4G GPS Tracker
2022-09-06G09L -6 inch Tail light tracker
2022-06-20G06L
2022-06-21Method of purchasing vehicle positioning system.realtime gps tracker online
2023-03-13GPS positioning interactive service
2022-08-12The correct way to use a GPS receiver in the field
2022-08-16The difference between the GPS positioner and the navigator
2023-02-25What are the elements of buying a driving recorder.gps tracker no monthly fee wholesale
2023-05-09mini gps tracker.The role of vehicle GPS satellite positioning system in logistics transportation
2023-11-02GPS positioning function
2022-12-10Handheld GPS performance.OBD GPS Tracker distributors
2023-07-17Surgical characteristics of the new technology GPS scheme
2022-10-15Twelve problems commonly used in car GPS positioner.gps tracker für auto webfleet solutions
2023-03-09GPS topographic mapping.pet gps tracker cat Solution
2023-07-03GPS vehicle navigation system.gps tracker for Car price
2023-08-10gps vehicle tracker.What is the price of a vehicle GPS locator
2023-11-09GPS satellite error.realtime gps tracker online manufacturer
2023-04-23Differences between GPS monitoring platform BS and CS
2022-12-14