China's beidou system is realized by using geometric principle of the junction of three goals positioning, now has global coverage to cover all over the world, is applied to the related the livelihood of the people in our country, has the support of China's big data, in 5 g car networking, Internet has greatly improved, the defence of our country have great help to get rid of the dependence on the us Gps, all countries in the asia-pacific region in the future will be big dipper of the popularization in our country.

　　The United States has a civilian version of Gps, military version, civilian version has been abandoned by many countries, the military version is mainly used by the United States and its Allies. Now the U.S. military is using Beidou, which is officially a backup of its GPS, and it is more accurate than GPS in the Asia-Pacific region. No doubt about it! GPS is old school in Galilee, but Beidou is the latest technology in the world. Science and technology always move forward, not cultural relics in the future, the older the more valuable. Beidou has the highest measurement accuracy at present.

　　Beidou has the function of short message broadcasting and communication, which is about 120 words in length, while GPS can only locate and has no communication function. This feature is useful in land and sea rescue! 2. The accuracy of Beidou is a little higher than that of GPS. Of course, this accuracy is of military grade, but there is still a gap in civilian accuracy, which does not affect normal daily life. Beidou has completed global coverage, but focus on the areas around China's rim, southeast Asia and the western Pacific region, such as the American satellites have serious aging, maintain ability gradually, China's beidou expand application area, formed the international orientation system of the four sets of coexistence, GPS position will decline gradually, the future or even replaced by north!

　　China's Beidou network success, marking the arrival of China's Beidou era of development, through the CCTV report we can know, has signed a contract with 137 countries in the world, to bring more than 700 billion foreign exchange income to China, Beidou terminal high-tech chip export to more than 100 countries, more than 100 countries to provide services. Many fields exceed the American GPS, especially in the military, civil fields have brought great social benefits, indicating that China's level of science and technology in many fields beyond western powers.

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