China intends to finish their Beidou Navigation Satellite System (BDS, formerly known in English as "Compass") by 2020. When complete, the constellation will will consist of 35
satellites: 5 geostationary orbit (GEO) satellites, 27 in Medium Earth Orbit (MEO) and 3 in Inclined
Geosynchronous Orbit (IGSO).
BDS began providing services to civilian users in China and surrounding areas in the Asia-Pacific in December 2012.
China intends to finish their Beidou Navigation Satellite System (BDS, formerly known in English as "Compass") by 2020. When complete, the constellation will will consist of 35
satellites: 5 geostationary orbit (GEO) satellites, 27 in Medium Earth Orbit (MEO) and 3 in Inclined
Geosynchronous Orbit (IGSO).
BDS began providing services to civilian users in China and surrounding areas in the Asia-Pacific in December 2012.
In 2015, the system began its transition towards global coverage with the first launch of a new-generation of satellites. BeiDou Phase III includes the migration of its civil Beidou 1 or B1 signal from 1561.098 MHz to a frequency centered at 1575.42 MHz — the
same as the GPS L1 and Galileo E1 civil signals — and its transformation
from a quadrature phase shift keying (QPSK) modulation to a multiplexed
binary offset carrier (MBOC) modulation similar to the future GPS L1C
and Galileo’s E1.
