Technical Progress of the Chinese VLBI Network

In recent years, the Chinese VLBI network has been greatly promoted by Chinas Lunar Exploration Project (CLEP) and the VLBI Global Observation System (VGOS). The new VGOS station will be put into trial observation in 2018. Both the new VGOS wideband VLBI terminal and the integrative data acquisition and transmission VLBI terminal for deep-space tracking have been installed. The correlator has been successfully applied to lunar probes and GEO satellites for phase reference precision positioning experiments. In combination with geodetic observations, precision comparisons have been performed with the DiFX and K5 correlators, and the CVN correlator is planned to be used for IVS data processing. According to the plan, a new VGOS station is under construction and it will join the CVN at the end of 2018. Besides, the first multi-purpose Earth-Moon baseline space VLBI experiment will be carried out, extending the CVN baseline length to 300,000 km.