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List of the catalogue of this article:

• 1, the world's fifth largest navigation system? Japan: Do not rely on American GPS, establish your own
• 2, Advantages of quasi-Zenith satellite system
• 3,The two regional satellite navigation systems are
• 4
  、 Why are China, Japan and India fiercely competing for GPS?
• 5, Which country is the qzss positioning system
• 6, Composition of quasi-zenith satellite system

the world's fifth largest navigation system? Japan: Build your own

without relying on American GPS, global satellitesThere are already four navigation systems, the other three are GPS of the United States, GALILEO of the European Union, and GLONASS of Russia. There are still the last 3 satellites left before Japan completes the construction of 7 satellites. If Japan completes the construction of navigation satellites as scheduled, it is very likely to become the world's fifth largest navigation system.

The European Union first announced the Galileo Satellite Navigation System Plan in 1999, the purpose of which is to get rid of Europe's dependence on the U.S. Global Positioning System, break its monopoly, and form the Galileo satellite positioning system. The project will launch a total of 30 satellites with a position accuracy of several meters, which can also be compatible with the GPS system of the United States.

United States: GPS in the United States is the earliest and most complete satellite navigation system in the world. Russia: Russia has built its own satellite navigation system - GLONASS, which has the same functions as GPS.

Advantages of the Quasi-Zenith Satellite System

1. The Quasi-Zenith Satellite System is for Mobile Application System Provide basic video services (images, sounds and materials) and positioning information.For its location services, when working in independent mode, QZSS can only provide limited accuracy at present, so it will be regarded as an expansion service for the global navigation satellite system.

2. Xiao Mucong openly said that the quasi-zenith satellite system is indeed the highest priority project among all space policy goals, because once the system is completed, it can be used in far more than its control, agricultural intelligence and autonomous driving.

3. Assisted-gps network auxiliary positioning system. Relying on satellite and base station positioning, it solves the disadvantage of not being able to locate indoors. As long as there is a signal coverage, it can be located. Moreover, the speed of the first positioning is much faster than that of GPS (2 to 3 minutes), and the fastest A-GPS only takes a few seconds. GLONASS navigation Satellite launch frequency is different.

4. By developing this system, Japan hopes to strengthen satellite positioning technology and use improved star-based positioning, navigation and timing technology to create a safe social environment. THE FIRST STAGE OF THE "PSUSI-HENNITH SATELLITE SYSTEM" PROJECT USES THE "MICHIBIKI" FOR TECHNICAL VERIFICATION TO IMPROVE GPS AVAILABILITY, PERFORMANCE AND ITS APPLICATION.

5. Japan's quasi-henith satellite system is a regional active three-dimensional satellite navigation system developed by Japan, which is mainly used in navigation, positioning, earth observation, disaster investigation and other fields. The system consists of four satellites, three of which are located on three orbital planes with an inclination of 45 degrees, and the fourth orbital plane with an inclination of 31 degrees.

6. For example, unmanned tractors, precise operation of heavy machinery;It is also helpful to confirm the location of children and the elderly, and to conduct tactical analysis of sports competitions. It can be seen from the above information that the quasi-henith satellite guide No. 2 launched by Japan can improve the accuracy, which is of great help to the automobile industry and the agricultural field.

The two regional satellite navigation systems are

1. The following is an introduction to the four major satellite navigation systems: United States: GPS system: GPS system was developed by the U.S. government in the 1970s, and in 19 It was fully completed in 1994. At present, the U.S. GPS satellite positioning system is all in place, with a total of 31 satellites in orbit, which can cover 98% of the earth's area.

2. The four major satellite navigation systems are respectively: Global Positioning System (GPS) in the United States, the Glonas system in Russia, the Galileo system in Europe, and the Beidou system in China.

3. The four major satellite positioning systems in the world are: the GPS global satellite positioning navigation system of the United States, the glonass system of Russia, the Galileo global satellite positioning and navigation system of the European Union, and the Beidou navigation system of China's regional satellite positioning system.

4. GPS, China BeiDou Satellite Navigation System, Glonas, Galileo Satellite Navigation System. GPS is the abbreviation of Global Positioning System in English, and it is abbreviated as "ball position system" in English.

5. The BeiDou satellite positioning system is a regional navigation and positioning system established by China.The system consists of four (two working satellites and two backup satellites) BeiDou positioning satellite (BeiDou-1), the ground part of the ground control center, and the BeiDou user terminal.

6. Satellite positioning system: Global positioning system is the second-generation satellite navigation system in the United States. Users only need to have a GPS terminal to use the service without additional charge.

Why are China, Japan and India fiercely competing for GPS?

1. Japanese media commented that the advantages and disadvantages of the satellite business not only determine the competitiveness of the aerospace business of countries, but also the struggle for the leadership of new technologies such as IT services that use location information and autonomous driving that are about to usher in practicality. After the "Linder", the competition has just begun, focusing on 10 or 20 years later.

2. First of all, in order to adapt to the strategy of globalization, mobile phone manufacturers have chosen GPS one after another, which can fully adapt to the market needs of different countries.

3. The first is culture, and the second is the economy. In terms of culture, Europe and the United States are originally the same family. Although there is a geographical gap, their whole root culture is connected. At the same time, they belong to the same race and have a strong sense of immersion. There is a big gap between Asian culture and European and American culture. To put it bluntly, it is unearthly.

4. The differentiated competitive pattern of scale, technology and cost is gradually becoming clear. The shipments of the top ten domestic component manufacturers account for 60% of the total battery output. In the next ten years, China's photovoltaic power generation market will shift from independent power generation systems to grid-connected power generation systems, including desert power stations and urban rooftop power generation systems.

Which country is the qzss positioning system

Japan. Japan's quasi-zenith satellite system (QZSS) is a Japanese version of the Global Positioning System. According to the Japan Aerospace Exploration Agency (JAXA), Japan's quasi-henith satellite system will eventually consist of seven satellites. In 2021, the first quasi-henith navigation satellite was launched.

Can. QZSS is a Japanese satellite that completes the Global Positioning System with three artificial satellites through time transfer. This system can also be used in China, and in the eastern region of China, the system has very good performance and is very convenient to use.

Global Positioning System (GPS) of the United States, Russia's Global Satellite GuideThe GLONASS, China's BeiDou Satellite Navigation System (BDS) [and the Galileo of the European Union. Japan's quasi-zenith satellite system (QZSS) and the planned launch of the Indian Regional Navigation Satellite System (IRNSS) in 2023.

Yes, Japan's satellite positioning system is called QZSS. Japan also has its own satellite positioning system. Japan's QZSS consists of 3 inclined synchronous orbit satellites and 1 geosynchronous orbit satellite, which can cover East Asia and Oceania and is a regional satellite system.

Composition of the quasi-Zenith Satellite System

Japan's quasi-Zenith Satellite System is a regional active three-dimensional satellite navigation system developed by Japan, which is mainly used in navigation, positioning, earth observation, disaster investigation and other fields.The system consists of four satellites, three of which are located on three orbital planes with an inclination of 45 degrees, and the fourth orbital plane with an inclination of 31 degrees.

The " quasi-henith satellite system" includes multiple geosynchronous orbit satellites with the same orbital period. These satellites are distributed on multiple orbital surfaces. At any time, there is always one satellite that can completely cover the whole of Japan.

Japan's Quasi-Zenith Satellite System (QZSS) is the Japanese version of the Global Positioning System. According to the Japan Aerospace Exploration Agency (JAXA), Japan's quasi-henith satellite system will eventually consist of seven satellites. In 2021, the first quasi-henith navigation satellite was launched.