source:truck tracking webfleet solutions release time:2022-10-14 Hits: Popular:realtime gps tracker online

The basic principle of GPS positioning is based on the instantaneous calculation data of the instantaneous position of the high -speed movement, and the method of the space distance is used to determine the location of the test point. As shown in the figure, assuming that when T is placed on the ground to be placed on the ground at the ground, the GPS receiver can be measured, and the time for the GPS signal to reach the receiving machine △ T, plus other data such as the satellite star calendar received by the receiver can determine the following four four. Formula:
In the above four equations, the measuring point coordinates X, Y, Z, and VTO are unknown parameters, where DI = C △ TI (i = 1, 2, 3, 4).
DI (i = 1, 2, 3, 4) is satellite 1. Satellite 2, satellite 3. Satellite 3. Satellite 3, satellite 4 to receiver.
△ TI (i = 1, 2, 3, 4) is the time of satellite 1. Satellite 1. Satellite 2, satellite 3, and satellite 4.
C is the speed of transmission of GPS signal (ie, the speed of light).
The meaning of each parameter in the four equations is as follows:
X, Y, Z are the spatial right -angle coordinates of the coordinates to be tested.
XI, Yi, Zi (i = 1, 2, 3, 4) are satellite 1. Satellite 2, Satellite 3, Satellite 4 in the right -angle coordinates of the space at the time of T.
VT I (i = 1, 2, 3, 4) The bells of satellite clocks with satellite 2, satellite 2, satellite 3, and satellite 4 are provided by the satellite star calendar.
VTO is the bell of the receiver.
From the above four equations, the clock difference of the coordinates X, Y, Z and the receiver of the coordinates to be measured at the above four equations.
GPS satellite sends its own star parameters and time information. Under the independent GPS mode, the positioning terminal receives the information through the antenna from the GPS satellite, and the three -dimensional position, three -dimensional direction and motion speed and time information of the receiving machine are calculated. Because satellites are directly broadcasting from high -altitude, the signal is weak and the transmission rate is slow. This gives the positioning terminal a certain problem.
Read recommendations:
Last article:The GPS implementation plan has three phases
Next article:Installation of GPS navigator
Related Information
4G GPS Tracker for vehicles Processing
2023-04-23Car gps tracking manufacture
2023-04-23Dog gps tracker price
2023-04-23fleet gps tracking
2023-04-234G GPS Tracker for vehicles Factory
2023-04-23pet gps tracker cat Factory
2023-03-164G GPS Tracker for vehicles Production
2023-04-23real-time gps tracking supplier
2023-04-23simple gps tracking wholesaler
2023-04-23gps vehicle tracker manufacturer
2023-04-11G200NY -Cow/Camel GPS Tracker
2022-06-21G06L
2022-06-21TK08A Motorcycle GPS Tracker
2022-06-20VSL100 GPS Speed Limiter, Speed Governor
2022-06-193 Years Disposable Asset GPS Tracker
2025-03-31The difference between the GPS positioner and the navigator
2023-02-25Introduction to GPS Prospects
2022-09-23Overview of GPS Vehicle Positioning System
2022-07-12ODM GPS Solution for Smart Wheelchair Project Launched!
2021-03-08GPS application range.gps tracker app Processing
2023-05-25Gps speed limiter.C/S version client vehicle management and scheduling system
2023-11-11What will happen if the card of the car GPS positioner is unplugged?realtime gps tracker online manu
2023-03-28Several Important Factors of Vehicle GPS Satellite navigation.personal gps tracker supplier
2023-06-16Advantages of Automotive Beidou/GPS Positioning Products.4G GPS Tracker for vehicles supplier
2023-09-15The manufacturer shared the function of GPS navigation with everyone.gps tracker with magnet price
2023-06-17Brief analysis of the benefits of installing vehicle positioning system.van tracker webfleet solutio
2023-03-13What is the best GPS tracker to choose?
2022-09-09GPS Locator
2022-10-08GPS installation step
2022-10-10The core of third-generation chips.vehicle gps tracker Solution
2023-07-06