truck tracking webfleet solutions

Home > NEWS > Other information > truck tracking webfleet solutions

Company News

Industry News

The development of GPS system

source:truck tracking webfleet solutions release time:2022-10-12 Hits:     Popular:realtime gps tracker online

  

  GPS(also known as global navigation satellite system or global positioning system) the predecessor of the system for the United States military development of a meridian satellite positioning system (Transit), 1958 development, 1964 officially put into use. The system works with a network of five to six satellites that circumnavigate the Earth up to 13 times a day, and it does not give altitude information and is not very accurate in positioning. However, the meridional instrument system makes the R&D department get the preliminary experience of satellite positioning, and verifies the feasibility of positioning by satellite system, laying the groundwork for the development of GPS system. Because satellite positioning shows great superiority in navigation and meridian system has great defects in submarine and ship navigation. The U.S. Navy, army, air force and civilian sectors all feel the urgent need for a new satellite navigation system. To this end, the United States Naval Research Laboratory (NRL) proposed Tinmation with 12 to 18 satellites composed of 10,000 km high global positioning network plan, and in 67 years, 69 and 74 years each launched a test satellite, in these satellites on the initial test atomic clock timing system, which is the basis of GPS system accurate positioning. The U.S. Air Force proposed 621-B's plan of three to four clusters of four to five satellites per cluster. All but one of these satellites were in synchronous orbit, and all of them were in tilted orbit with a period of 24 hours. The plan was based on pseudo-random code (PRN) to transmit satellite ranging signals. Signal density is also detected when it is less than 1% of the ambient noise. The successful application of pseudorandom code is an important basis for the success of GPS system. The Navy's plan is designed to provide low-dynamic, 2-D positioning for ships, while the Air Force's plan is designed to provide high-dynamic services, but the system is too complex. Because the two systems at the same time development will cause huge cost, and here two plans are designed to provide global positioning, so in 1973 the United States department of defense will close 2 for one, the two joint projects agency (darpa), led by the Ministry of National Defense and satellite navigation and positioning (JPO) leadership, will also air force space agencies set up in Los Angeles. The agency has a large membership, including representatives of the U.S. Army, Navy, Marine Corps, Department of Transportation, Defense Mapping Agency, NATO and Australia.


Read recommendations:

GPS Tracker company

mini gps tracker Factory

3000mAh Magnet Asset GPS Tracker

What are the advantages of electric vehicle GPS positioner?

China's Beidou GPS system

Last article:GPS Plan implementation plan

Next article:Global Positioning System

Related Information

best gps tracker

2023-04-11

fleet gps trackers

2023-04-11

real-time gps tracking Solution

2023-04-23

Gps speed limiter Processing

2023-04-23

Dog gps tracker sales

2023-04-23

Gps speed limiter Manufacturing

2023-04-23

4G GPS Tracker for vehicles manufacture

2023-04-23

4G LTE gps tracker

2023-03-16

gps vehicle tracker manufacture

2023-04-23

gps tracker with magnet

2023-04-11

TK08A Motorcycle GPS Tracker

2022-06-20

P901 4G ID Card GPS Tracker Smart Walkie-talkie

2025-07-11

TK103B

2022-06-20

G07L 4G GPS Tracker

2022-09-06

G200NY -Cow/Camel GPS Tracker

2022-06-21

Actual demand and development trend of GPS market

2022-12-22

GPS navigator software.Hidden GPS Trackers wholesaler

2023-06-10

What is the best GPS tracker to choose?

2022-09-09

The car GPS positioner plug -in card is still free of card.van tracker webfleet solutions

2023-03-14

Key Advantages of GPS

2022-10-20

GPS tracking locator.plug & play Obd gps tracker manufacturer

2023-08-17

GPS Development.cat gps tracker manufacture

2023-07-20

The advantages of the Beidou satellite positioning system.fleet gps tracking Production

2023-06-08

Causes of GPS Positioning Drift

2022-09-20

Global Navigation Satellite System

2022-11-04

Overview of the car navigation system.Magnetic gps tracker Manufacturing

2023-05-18

The advantage of remote anti -theft of electric vehicle GPS positioner.vehicle gps tracker webfleet

2023-03-28

GPS principle

2023-06-02

mini gps tracker.Introduction to the main functions of enterprise users choosing car GPS satellite p

2023-11-11

Gps speed limiter.Basic knowledge and performance indicators of automotive GPS locators

2023-11-09