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:
4G GPS Tracker for vehicles distributors
The Application of GPS Navigation System.plug & play Obd gps tracker Solution
Last article:The GPS implementation plan has three phases
Next article:Installation of GPS navigator
Related Information
gps vehicle tracker Manufacturing
2023-04-23Cantrack G05
2023-04-23realtime gps tracker online
2023-03-16gps tracker for kids
2023-03-16GPS Tracker sales
2023-04-11simple gps tracking manufacturer
2023-04-234G LTE gps tracker
2023-04-11pet gps tracker cat wholesale
2023-03-16car gps tracker supplier
2023-04-23gps tracker with magnet Vendor
2023-03-163000mAh Magnet Asset GPS Tracker
2025-03-31TK200AM-Disposable GPS Tracker
2022-06-21TK100N- Multi functional GPS Tracker
2023-10-06TK103B
2022-06-20G07L 4G GPS Tracker
2022-09-06The advantages of the Beidou satellite positioning system.fleet gps tracking Production
2023-06-08Requirements for GPS logistics tracking and monitoring
2023-02-02Advantages of Galileo positioning system
2022-12-12GPS positioning manufacturers introduce the composition of satellite positioning systems.Dog gps tra
2023-06-14Introduce the different types of the positioner
2023-03-07GPS selection.Hidden GPS Trackers wholesale
2023-06-28How to find the GPS locator on the car?obd2 gps tracker verizon supplier
2023-03-16Application of GPS Positioning Technology in Network Security
2022-08-12GPS positioner application in logistics management
2023-02-08Judging the Advantages and Disadvantages of GPS Navigator.4G GPS Tracker manufacturer
2023-07-24About GPS Drift
2022-08-19Introduction to GPS positioning tracker
2022-12-15Differences between GPS monitoring platform BS and CS
2022-12-14The suction cup of GPS bracket is easy to loosen the problem.realtime gps tracker online Manufacturi
2023-04-12GPS topographic mapping.pet gps tracker cat Solution
2023-07-03