From 25th.Nov to 27th Nov, at the invitation of Electronic engineering institute, Professor Jietai Mao from Beijing University paid a visit to CUIT and respectively delivered three academic lectures entitled the imagination about the system of No ball sounding, Networking Radar Observation and Remote sensing ABC and also holding a forum about Academic frontier issues and research direction and project application. Some teachers, postgraduates and undergraduates of atmosphere major attended this lecture.