truck tracking webfleet solutions

Home > NEWS > Other information > truck tracking webfleet solutions

Company News

Industry News

GPS Principles.Pet GPS Tracker manufacturer

source:truck tracking webfleet solutions release time:2023-07-14 Hits:     Popular:realtime gps tracker online

  

  24 GPS satellites orbit the Earth at an altitude of 12000 kilometers above the ground in a 12 hour cycle, allowing for simultaneous observation of more than 4 satellites at any point on the ground at any time.

  Due to the precise positioning of satellites, in GPS observations, we can obtain the distance from the satellite to the receiver. Using the distance formula in three-dimensional coordinates and using three satellites, we can form three equations to solve the positions of observation points (X, Y, Z). Considering the error between the satellite clock and the receiver clock, there are actually four unknowns, X, Y, Z, and clock difference. Therefore, a fourth satellite needs to be introduced to form four equations for solving, in order to obtain the longitude, latitude, and elevation of the observation point.

  In fact, receivers can often lock in more than 4 satellites. In this case, the receiver can be divided into several groups based on the constellation distribution of the satellites, with 4 satellites in each group. Then, the algorithm selects the group with the smallest error for positioning, thereby improving accuracy.

  Due to the errors in satellite orbit and satellite clock, the influence of atmospheric troposphere and ionosphere on signals, and the artificial SA protection policy, the positioning accuracy of civil GPS is only 100 meters. In order to improve positioning accuracy, differential GPS (DGPS) technology is commonly used to establish a reference station (differential station) for GPS observation. The known precise coordinates of the reference station are compared with the observed values to obtain a correction number, which is then released to the public. After receiving the correction number, the receiver compares it with its own observation values to eliminate most of the errors and obtain a more accurate position. Experiments have shown that using differential GPS, the positioning accuracy can be improved to 5 meters.


Read recommendations:

GPS Tracker Solution

rastreador tracker

TK08A Motorcycle GPS Tracker

Positioner manufacturer tells the role of car GPS positioner.gps tracker for trailer Vendor

Accuracy of GPS

Last article:Principles of GPS system positioning.Magnetic gps tracker company.gps tracker for Car supplier

Next article:GPS mobile engineering mode.gps tracker device wholesale

Related Information

Magnetic gps tracker

2023-03-16

gps tracker for Car

2023-04-11

gps tracker device

2023-04-11

mini gps tracker manufacturer

2023-04-23

4G GPS Tracker for vehicles manufacturer

2023-04-23

fleet gps tracking price

2023-04-23

Car gps tracking price

2023-04-11

gps vehicle tracker Manufacturing

2023-04-11

gps vehicle tracker price

2023-04-23

Pet GPS Tracker Manufacturing

2023-03-16

G05N Vehicle Tracker

2022-06-21

YG119- Hunting Dog GPS tracker

2023-10-07

GF70L-Solar Magnetic Asset GPS Tracker

2023-10-07

G900LS 8 Lines-4G Car GPS Tracker

2025-03-31

G01 Smallest Personal Old People Mini GPS Tracker for Kids

2022-06-19

The development history of GPS

2022-08-12

GPS Tracker Features and Benefits

2022-07-08

Beidou GPS Navigation System - Future development

2022-10-20

Main Errors in GPS Positioning and Their Elimination Algorithm

2022-12-10

GPS_GPRS system composition and characteristics

2022-10-28

Vehicle GPS positioner startup status classification description.gps tracker für auto webfleet solut

2023-03-28

gps vehicle tracker.What is the price of a vehicle GPS locator

2023-11-09

Car GPS.obd-II port gps tracker Processing

2023-05-13

GPS application

2022-10-10

Gps speed limiter.GLONASS Satellite Navigation System

2023-10-11

What basic functions should Beidou positioning equipment have.Gps speed limiter

2023-10-10

What are the classification of GPS system.gps tracker no monthly fee wholesale

2023-04-21

Five requirements that a good GPS module must meet

2022-11-07

mini gps tracker.The role of vehicle GPS satellite positioning system in logistics transportation

2023-11-02

What kind of Bluetooth GPS do you choose?fleetmanagement webfleet solutions

2022-11-16