This undated photograph shows a model of the Beidou Satellite Navigation System. (PHOTO / IC)

WUHAN - China will employ BeiDou satellite-based augmentation system (BDSBAS) to provide high-precision positioning service in railway survey and construction, according to the China Railway Siyuan Survey and Design Group Co, Ltd.

Four satellite-based and 12 ground-based observation stations will be set up along the Wufeng-Enshi railway section in central China's Hubei province.

Users can access the real-time centimeter-level positioning service after receiving relevant signals through a wireless network or satellite-to-earth communication

This is the first time that the BDSBAS will be used in the field of intelligent railway surveys, according to the company.

Users can access the real-time centimeter-level positioning service after receiving relevant signals through a wireless network or satellite-to-earth communication.

Compared with the BeiDou ground-based augmentation system (BDGBAS), the BDSBAS is more efficient in network construction and wide-range constant positioning in mountainous regions.

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The construction of BDSBAS and BDGBAS in the Wufeng-Enshi section will further enhance the railway survey efficiency, and lay the foundation for high-precision geographic information services of intelligent survey and design, said the company.