In recent years, China has continuously strengthened the manufacturing and launch of Beidou navigation satellites and the construction of ground systems. The infrastructure of the Beidou navigation system has gradually improved, and it is expected that the construction of the Beidou-3 system will be fully completed by the end of 2020. At that time, the spatial signal accuracy will be better than 0.5 meters. The Beidou system has been widely applied in fields such as transportation, agriculture, forestry, and fisheries, hydrological monitoring, meteorological forecasting, disaster relief and disaster reduction, and has been widely applied abroad in Indonesia's land ownership confirmation, Kuwait's construction, Uganda's land testing, Myanmar's precision agriculture, Maldives' offshore piling, Thailand's warehousing and logistics, Pakistan's airport time service, and Russia's power inspection.

　　. The 28 nanometer process RF baseband integrated SoC chip that supports the new signal of Beidou-3 has been widely used in the fields of the Internet of Things and consumer electronics. The latest 22 nanometer process dual frequency positioning chip has met the market application conditions, and the full frequency integrated high-precision chip is being developed. The world's first high-precision baseband chip that fully supports the civil navigation signal system of Beidou-3, the "Tianqin Second Generation", has been officially released in Beijing, The performance of Beidou chips will reach another level, with performance indicators comparable to similar international products. As of the end of 2019, the cumulative sales of domestic Beidou navigation chip modules have exceeded 80 million pieces, and the sales of high-precision boards and antennas have occupied 30% and 90% of the domestic market share, and have been exported to more than 100 countries and regions.

　　The China Satellite Navigation and Positioning Reference Service System has been put into operation, providing open real-time sub meter level navigation and positioning services to the public for free. The Beidou system has made breakthroughs in high-precision algorithms and high-precision board manufacturing, and the use of RTK (Real time Kinematic) technology can improve accuracy to the centimeter level. The future development space of high-precision positioning technology is vast. The National Beidou Precision Service Network has provided Beidou precision services for various industry applications in over 400 cities nationwide, effectively promoting the optimization and improvement of smart city infrastructure

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