News Item

Beidou augmentation

A ground-based augmentation system (GBAS) for China's Beidou navigation satellite system is up and running.

The system - to enhance the accuracy of the Beidou Navigation Satellite System (BDS) - went live on 11 September.

The Beidou Ground Base Enhancement System - comprising 30 ground-based stations - is claimed to improve the positioning precision of the BDS to 2 cm horizontally and 5 cm vertically.

Whilst this claimed accuracy stems from tri-band real-time precision positioning technology, the system should also improve single-frequency differential navigation to 1.5 m.

China is quoted to have launched 16 Beidou satellites plus 4 experimental ones and intends to capture at least 70-80% of the now-GPS-dominated domestic market by 2020.

Details from Want China Times below.

  • 18 September 2013
  • Space

Contact Us

The Royal Institute of Navigation
1 Kensington Gore

+44 (0)20 7591 3134

E-Mail Communication

The Royal Institute of Navigation periodically sends out email updates to its membership and those who have subscribed to events and conferences run by the RIN. In doing so, the RIN takes all reasonable precautions to ensure that the emails are only sent to those who have requested them, and that no third party can make unauthorised use of any email address to send out mailings.If you receive unsolicited mail from any address then please inform us at and we will take appropriate action.

Join the RIN

You can apply for any category of RIN membership by completing the online membership application form and paying using our secure credit/debit card payment system.

Join Now