Industry News

Home > NEWS > Industry News

Company News

Industry News

Introduction to the principle of Beidou positioning by positioning manufacturers.gps tracker for trailer price

source:Industry News release time:2023-06-20 Hits:     Popular:realtime gps tracker online

  

  24 GPS satellites orbit the Earth at an altitude of 22000 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 location of satellites, in GPS observation, we can obtain the distance from the satellite to the Beidou position reporting machine. 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, the Beidou position reporting terminal can often lock in more than 4 satellites. At this time, the Beidou position reporting terminal can be divided into several groups according to 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 operation orbit and satellite clock, the influence of atmospheric troposphere and ionosphere on signals, and the artificial SA protection policy (cancelled on May 1, 2000), the positioning accuracy of civil GPS is only 100 meters. To improve positioning accuracy, differential GPS (DGPS) technology is commonly used to establish a reference station (differential station) for GPS observation. The known accurate coordinates of the reference station are compared with the observed values to obtain a correction number, which is then published to the public. After receiving the correction, the Beidou position reporting machine compares it with its own observation values, eliminates most of the errors, and obtains a more accurate position. Experiments have shown that using differential GPS can improve positioning accuracy to 5 meters


Read recommendations:

GPS Tracking Solution

Gps speed limiter wholesale

TK08A Motorcycle GPS Tracker

Intelligent GPS.gps tracker no monthly fee manufacturer

Detailed Analysis of GSM Communication Service System

Last article:What are the functions of car GPS locators.obd-II port gps tracker maker

Next article:Introduction to GPS Positioner.gps tracker device Production

Related Information

Dog gps tracker Production

2023-04-23

pet gps tracker cat Vendor

2023-03-16

mini gps tracker Factory

2023-04-23

realtime gps tracker online

2023-04-11

cat gps tracker sales

2023-04-11

Gps speed limiter equipment

2023-04-23

gps tracker for bike supplier

2023-04-23

fleet gps tracking Solution

2023-04-23

Gps speed limiter maker

2023-04-23

Dog gps tracker Vendor

2023-04-23

6000mAh Magnetic Asset GPS Tracker

2025-03-31

TK100N- Multi functional GPS Tracker

2023-10-06

Mini Sized GPS Tracker PCBA

2022-06-17

G183 serials -JOBD GPS Tracker

2022-09-06

TK103B

2022-06-20

GPS active ranging and passive range.car gps tracker Solution

2023-04-19

GPS installation points

2022-10-08

Application of GPS in Logistics Industry

2022-07-11

GPS positioning tracker function

2022-12-15

Types of GPS Chips Used in Common GPS Receivers

2022-08-17

GPS area measuring instrument.trailer gps tracker supplier

2023-07-19

The function of the car GPS.gps tracker no monthly fee wholesaler

2023-05-13

Classification of GPS antenna

2022-11-12

GPS uses traditional paper maps to find its location.realtime gps tracker online manufacturer.obd2 g

2023-04-13

Introduction to GPS Watch.4G GPS Tracker for vehicles Solution

2023-08-09

With GPS positioning function, police smart clothing becomes a good helper for Expo security

2022-09-06

The difference between the Beidou satellite positioning system and the Beidou navigation system.plug

2023-05-06

The advantage of mobile phone GPS navigation.GPS Tracker for vehicles Production

2023-05-09

GPS area measuring instrument.car gps tracker distributors

2023-07-19

What are the differences between car GPS positioning and mobile phone GPS positioning?plug & pla

2023-03-17