source:truck tracking webfleet solutions release time:2023-07-13 Hits: Popular:realtime gps tracker online
The basic principle of GPS positioning is to use the instantaneous position of high-speed moving satellites as known starting data, and use the method of spatial distance resection to determine the position of the test point.
Assuming that a GPS receiver is placed at the ground test point at time t, the time △ t of the GPS signal reaching the receiver can be determined. In addition, the satellite ephemeris and other data received by the receiver can determine the following four equations:
The meanings of each parameter in the four equations are as follows:
x. Y and z are the spatial Cartesian coordinates of the coordinates of the point to be measured.
Vto is the clock deviation of the receiver.
C is the propagation speed of GPS signals, that is, the speed of light.
Di (i=1, 2, 3, 4) is the distance between satellite 1, satellite 2, satellite 3, and satellite 4 to the receiver.
△ ti (i=1, 2, 3, 4) is the time it takes for signals from satellites 1, 2, 3, and 4 to reach the receiver.
Di=c △ ti (i=1, 2, 3, 4)
Xi, yi, zi (i=1, 2, 3, 4) are the spatial Cartesian coordinates of satellite 1, satellite 2, satellite 3, and satellite 4 at time t, obtained from satellite navigation messages.
Vti (i=1, 2, 3, 4) is the clock deviation of satellite clocks for satellites 1, 2, 3, and 4, provided by the satellite ephemeris.
Read recommendations:
Precautions for installation of 4G wiring GPS positioner.obd2 gps tracker verizon wholesaler
The GPS positioner on the electric car is installed to allow the city's traffic safety and intellige
Last article:Mobile GPS positioning
Next article:GPS Principles.Pet GPS Tracker manufacturer
Related Information
gps vehicle tracker company
2023-04-11car gps tracker Solution
2023-04-234G GPS Tracker price
2023-04-23pet gps tracker cat wholesaler
2023-03-16GPS Tracker
2023-04-11GPS Tracking
2023-04-114G GPS Tracker Processing
2023-04-23Cantrack GT06
2023-04-11rastreador de GPS
2023-03-16gps tracker device Factory
2023-04-236000mAh Magnetic Asset GPS Tracker
2025-03-31TK103B
2022-06-20TK200AM-Disposable GPS Tracker
2022-06-21G03
2022-06-21TK08AL- RFID Car GPS Tracker
2023-10-07The importance of the GPS positioning system in vehicle management.GPS Tracker for vehicles distribu
2023-04-04GPS development background.car gps tracker distributors
2023-04-19GPS Global Positioner.fleet gps tracking wholesaler
2023-05-27GPS signal is briefly introduced
2022-11-02Can the car GPS locator work normally in a special environment?gps tracker no monthly fee manufactur
2023-03-28Automatic optimization and scheduling function of mining GPS positioning system.Gps speed limiter
2023-10-07GPS emergency positioning and assistance products for the elderly.4G GPS Tracker for vehicles distri
2023-08-17GPS Starry Structure and Solving Process
2023-02-10The significance of GPS positioning technology in the construction machinery industry.GPS Rastreader
2023-03-16What is the difference between GPS positioning manufacturers and in car reverse imaging WiFi and 4G.
2023-06-14GPS application
2022-10-10The GPS system consists of three parts
2022-12-06GPS module accuracy.gps vehicle tracker Solution
2023-07-11How to purchase GPS.gps tracker with magnet distributors
2023-08-25Working principle of locator.vehicle gps tracker supplier
2023-07-19