On Dec. 7, 2017, Prof. Geng Jianghui was invited to visit Zhengzhou School for Surveying and Mapping and gave talk on modernized GNSS to over 500 students. He also talked to the Dean of Surveying Engineering, Mr. Zhou Rong, on student advising.

Later, Prof. Geng also visited Information Engineering University and gave a talk to the graduates and faculties on “Precise point positioning: selected topics on ambiguity resolution and rapid convergences”. Prof. Geng talked to Dean Prof. Chai Hongzhou, and answered the questions by students on various issues related to high-precision GNSS.