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Highest precision GPS positioning equipment in China, and what?
- Nov 30, 2016 -

nited States open free GPS positioning signals provided by 2000 in the United States announced the abolition of S/A (selection available) policy accuracy is about 100 meters before, the current single (no difference) positioning accuracy is 10--15 meters. Now whether it's driving navigation, travel adventures is a professional survey and mapping are mostly used in the field, such as the GPS signal. Achieve a high precision positioning accuracy of the method is the use of mathematical methods method and corresponding technical means. Location of Hangzhou Bay Bridge pile foundation using GPS error is less than centimeters. It's true, and now widely used, specific equipment has both domestic and imported.

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