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Analysis of four global satellite navigation systems

Updated： 2021-12-28
Views： 994

GlobalfourAnalysis of large satellite navigation system Abstract: in order to further study the satellite navigation system, the four existing global satellite navigation systems are compared and analyzed: from the aspects of constellation, signal

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How are satellites located in the sky?

Updated： 2021-12-28
Views： 1018

preface According to CCTV news, China recently successfully launched the 54th navigation satellite of the Beidou system with a long march 3B carrier rocket at the Xichang Satellite Launch Center. The satellite has successfully entered the predet

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To test! What are the mobile phones supporting Beidou system?

Updated： 2021-12-28
Views： 1062

Although it is 2018, when talking about the "Beidou system", many people's impression may still stay in 2008 - during the Wenchuan earthquake relief, Beidou generation equipment sent the first message from the earthquake area. Gener

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When typhoon meets Beidou

Updated： 2021-12-28
Views： 950

Typhoon "haigebi" is approaching step by step. Strong winds have blown in Liuzhou Bay, Sansha Town, Xiapu County, Fujian Province. Nearly 100 fishing boats have been parked neatly in the Bay, and all 541 fishing boats have returned to Hong Kong

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Chihiro launched the world's largest Beidou high-precision positioning road survey

Updated： 2021-12-28
Views： 1089

On July 31, the beidou-3 global satellite navigation system was officially completed and put into operation. We also have a big move - Chihiro positionTo promote Beidou high precisionThe large-scale application of positioning technology in the field of in

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Who is better than Chinese Beidou and American GPS?

Updated： 2021-12-28
Views： 1038

Introduction: Recently, China's Beidou global satellite navigation system has attracted much attention. What are the advantages of China's Beidou global satellite navigation system compared with the GPS global positioning system of the Unit

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Common antenna connectors

Updated： 2021-12-28
Views： 1270

The basic structure of coaxial connector includes: central conductor (male or female central contact); Dielectric materials, or insulators, inside and outside the body; The outermost part is the outer contact, which plays the same role as the outer shield

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Why did China work hard to develop Beidou? It was forced to hurry!

Updated： 2021-12-28
Views： 1039

Although it is 2018, when talking about the "Beidou system", many people's impression may still stay in 2008 - during the Wenchuan earthquake relief, Beidou generation equipment sent the first message from the earthquake area. Gener

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How do we know where we are when there is no navigation system?

Updated： 2021-12-28
Views： 1004

What if you get lost somewhere on earth? By GPS? Okay, but what if there's no signal, no equipment? A map? Good idea, but what if you travel on the high seas and can't see landmarks? For thousands of years, many people have found this problem. The

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Beidou + 4G / 5G indoor positioning technology and Application

Updated： 2021-12-28
Views： 1236

Indoor positioning technology is now in a very hot research and exploration stage, showing a state of a hundred flowers in full bloom.The main existing problems in this field are operating costs and investment.Mobile communication network can not only eng

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GNSS positioning of autopilot positioning technology

Updated： 2021-12-28
Views： 1393

Automatic driving positioning technology is one of the key technologies to realize automatic driving. Generally speaking, the fundamental problem to be solved by unmanned driving is: where is it now? Where are you going? Which way? "Where is

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40 years of Zhongguancun

Updated： 2021-12-28
Views： 1269

40 years later, looking back on the legend of Zhongguancun, we still have to start with Chen Chunxian. In 1978, when the Chinese Physics delegation vis……

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