Industry News

Home > NEWS > Industry News

Company News

Industry News

GPS positioning accuracy

source:Industry News release time:2022-08-20 Hits:     Popular:realtime gps tracker online

  

  When it comes to positioning accuracy, we have to talk about SA and AS.

  What is SA, AS?

  GPS signals have two types of C/A codes and P codes.

  The error of C/A code is 29.3m to 2.93m. Common receivers use C/A codes to calculate positioning. In the mid-1990s, the United States added SA (Selective Availability) to the signal for its own safety considerations, which increased the error of the receiver to about 100 meters. On May 2, 2000, SA was cancelled, so our current GPS accuracy should be within 20 meters.

  The error of the P code is 2.93 meters to 0.293 meters, which is one tenth of the C/A code. But the P code can only be used by the US military. AS (Anti-Spoofing) is an interference signal added to the P code.

  In short, the old beauty is also quite tired. A whole bunch of satellites were sent for military positioning. Then I felt it was not worth it and wanted to make some money, so I developed a signal for civilian use. Because GPS is in the hands of the old and the United States, although it is free to use, it is not practical for other countries to use it. The United States processed the GPS signals in the area two days ago, and the positioning accuracy became lower.

  Russia has its own satellite positioning system, the Global Navigation Satellite System (GLObal NAvigation Satellite System). Europe will also develop its own positioning system NAVSAT. China also has its own satellite positioning, called Beidou, which is a dual-star system that can only locate its own country and nearby areas, and is currently only used by the military.


Read recommendations:

pet gps tracker cat sales

personal gps tracker

4G Wired GPS Tracker PCBA

Factors affecting GPS positioning accuracy.gps tracker for trailer Production

The manufacturer believes how to effectively prevent the vehicle positioning system from being destr

Last article:GPS application knowledge

Next article:Basic knowledge of GPS satellite positioning system

Related Information

gps vehicle tracker wholesaler

2023-04-23

Car gps tracking manufacturer

2023-04-23

4G GPS Tracker for vehicles maker

2023-04-23

Fleet management expert

2023-03-16

4G GPS Tracker for vehicles

2023-03-16

gps tracker for bike

2023-03-16

gps tracker for trailer

2023-04-23

4G GPS Tracker supplier

2023-04-23

Car gps tracking price

2023-04-11

OBD GPS Tracker distributors

2023-04-23

3 Years Disposable Asset GPS Tracker

2025-03-31

G01 Smallest Personal Old People Mini GPS Tracker for Kids

2022-06-19

3000mAh Magnet Asset GPS Tracker

2025-03-31

G900LS 8 Lines-4G Car GPS Tracker

2025-03-31

TK100B- Accurate Pro version GT06/TK100

2023-10-06

DGPS Principle

2022-11-19

How to buy GPS.Magnetic gps tracker manufacturer

2023-05-24

What can GPS do besides navigation?

2022-08-25

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

2023-03-13

Why do you still use the GPS of the United States?

2022-11-17

GPS Tracking Monitoring Promotes Mobile Logistics Management

2022-12-30

GPS indoor positioning technology

2022-08-12

10 problems with common car GPS positioner.plug & play Obd gps tracker manufacture

2023-03-28

Gps speed limiter.What are the functions implemented after the installation of the car GPS on-board

2023-10-13

Is the gps tracker easy to use after removing the traffic card?

2022-09-09

GPS flat antenna

2022-11-23

Global Positioning System

2022-10-12

GPS setting RF front end

2022-11-08

GPS positioning function

2022-12-10

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

2023-03-17