truck tracking webfleet solutions

Home > NEWS > Other information > truck tracking webfleet solutions

Company News

Industry News

DGPS Principle

source:truck tracking webfleet solutions release time:2022-11-19 Hits:     Popular:realtime gps tracker online

  G05N Vehicle Tracker

  At present, the positioning accuracy provided by the GPS system is better than 10m. To obtain higher positioning accuracy, we usually use the differential GPS technology: place a GPS receiver on the base station for observation. According to the known precise coordinates of the reference station, the distance correction number from the reference station to the satellite is calculated, and the data is sent out by the reference station in real time. The user receiver also receives the correction number sent by the reference station while making GPS observation, and corrects the positioning result, so as to improve the positioning accuracy. Differential GPS can be divided into two categories: pseudo range difference and carrier phase difference.

  1. Pseudo range difference principle

  This is the most widely used difference. On the base station, observe all satellites, and calculate the true distance from each satellite to the base station at each time according to the known coordinates of the base station and the coordinates of each satellite. Compared with the measured pseudo range, the pseudo range correction number is obtained and transmitted to the user receiver to improve the positioning accuracy. This difference can obtain meter level positioning accuracy, such as the "beacon difference" widely used in coastal areas.

  2. Carrier phase difference principle

  Carrier phase difference technology, also known as RTK (Real Time Kinematic) technology, is a difference method for real-time processing of carrier phase observation of two stations. That is, the carrier phase collected by the reference station is sent to the user receiver to calculate the coordinates. The carrier phase difference can make the positioning accuracy reach centimeter level. It is widely used in the field where high precision position is required dynamically.


Read recommendations:

trailer gps tracker Factory

mini gps tracker maker

GF30 Magnet GPS tracker with Voice listen

The manufacturer shared the function of GPS navigation with everyone.gps tracker with magnet price

A GPS satellite

Last article:GPS development mode

Next article:GPS components

Related Information

pet gps tracker cat custom

2023-04-23

Gps speed limiter Manufacturing

2023-04-23

fleet gps trackers wholesale

2023-04-23

simple gps tracking Production

2023-04-23

fleet gps trackers Production

2023-04-23

car gps tracker price

2023-04-11

4G GPS Tracker for vehicles

2023-03-16

gps vehicle tracker sales

2023-04-23

gps tracker for trailer

2023-04-23

plug & play Obd gps tracker

2023-03-16

G900LS-4G Car GPS Tracker

2023-10-06

Mini Sized GPS Tracker PCBA

2022-06-17

G500L -4G OBD GPS Tracker

2022-09-06

TK200AM-Disposable GPS Tracker

2022-06-21

TK08A Motorcycle GPS Tracker

2022-06-20

What are the differences between car navigation and mobile phone navigation?gps tracker with magnet

2023-04-11

Introduction of the 4 major characteristics of GPS.realtime gps tracker online company

2023-05-11

What are GPS satellite tracks?

2022-10-26

Car GPS function.GPS Tracker for vehicles distributors

2023-05-13

Brief analysis of the benefits of installing vehicle positioning system.van tracker webfleet solutio

2023-03-13

Introduce how to use wireless GPS locators

2023-06-27

The choice of GPS hardware architecture

2022-09-01

Preparation before using GPS

2022-12-28

Working principle of locator.vehicle gps tracker supplier

2023-07-19

Examples of GPS technology in the application of navigators

2023-05-16

GPS positioning based on base stations.vehicle gps tracker company

2023-07-14

Fire truck installed with GPS global positioning navigation system

2023-02-06

The following aspects mainly affect the performance of GPS antenna

2022-11-12

GPS receiving antenna

2022-09-27

The advantages of "Galileo" GPS positioning system

2023-02-11