source:truck tracking webfleet solutions release time:2023-02-21 Hits: Popular:realtime gps tracker online
GPS global positioning system is a high-precision radio navigation positioning system based on air satellites. It can provide more accurate geographical location, vehicle speed and accurate time information anywhere in the world and in near-Earth space. In a simplified single-point positioning model, GPS positioning is actually to determine the position of the GPS receiver through four satellites with known positions.
As shown in the figure, the position of the four satellites and the distance from the GPS receiver are very easy to obtain. Each GPS satellite operating in the space constantly broadcasts its current position coordinate information and time information to the world through satellite signals. Any GPS receiver can easily receive these information through the antenna.
After the GPS receiver receives the data packet, subtract the time on the timestamp from the current time, which is the time used for the data packet to be transmitted in the air. Multiply the transmission speed to get the distance of the data packet to be transmitted in the air, which is the distance between the satellite and the GPS receiver. It is required to solve the position of GPS receiver in three-dimensional space. Mathematically, it only needs the position of three satellites and the distance between them and GPS receiver (three unknowns need to construct three equations). In the GPS positioning system, the position information of four satellites is used for correction to eliminate errors.
There are many factors that affect the GPS positioning accuracy. According to the different processes in the above model, there can be satellite ephemeris error, satellite clock error and satellite signal transmission antenna phase center error, etc.
Read recommendations:
C32 (9~90V E-bikes/Motorcycle/Car gps tracker)
How to prevent the disassembly of the car GPS locator?personal gps tracker manufacturer
Last article:Benefits of GPS locators for cattle/sheep grazing
Next article:How to design an excellent personal GPS satellite locator
Related Information
best gps tracker
2023-04-11rastreador tracker
2023-03-16fleet management software webfleet solutions
2023-03-16realtime gps tracker online
2023-04-11portable gps tracker Vendor
2023-04-23real-time gps tracking maker
2023-04-23fleet gps tracking supplier
2023-04-23pet gps tracker cat Solution
2023-03-16Dog gps tracker
2023-04-114G GPS Tracker for vehicles maker
2023-04-23GF30 Magnet GPS tracker with Voice listen
2022-06-21personal gps tracker Production
2022-09-06TK08AL- RFID Car GPS Tracker
2023-10-07GF70L-Solar Magnetic Asset GPS Tracker
2023-10-07C32 (9~90V E-bikes/Motorcycle/Car gps tracker)
2022-06-21GPS system architecture and analysis
2022-12-08GPS receiver introduction.gps tracker no monthly fee Solution
2023-05-11The main error and elimination algorithm in GPS positioning
2023-02-10How can the GPS positioner prevent electric vehicles from being stolen?plug & play Obd gps track
2023-03-17GPS Antenna Channel
2022-08-19GPS receiver.realtime gps tracker online wholesale
2023-08-22What is the best type of strong magnetic wireless car GPS locator?fleet gps tracking
2023-09-05GPS pseudo -distance measurement introduction.car gps tracker supplier
2023-04-19Beidou Satellite GPS Trajectory.gps tracker no monthly fee distributors
2023-08-18How to find the GPS locator on the car?obd2 gps tracker verizon supplier
2023-03-16Introduction and Comparison of GPS PPS Technology and Other Clock Synchronization Technologies
2022-11-11gps vehicle tracker.How to Install the Beidou GPS Satellite Positioning and Monitoring System in Car
2023-11-02Principles of GPS System.Cantrack TK100
2023-09-04GPS monitoring system system function and characteristics
2023-02-11GPS signal jammer shield
2023-11-01