Research on the Improvement of GDOP in the Galileo/Beidou Combined System;

BeiDou Navigation Positioning System and its Application to Unmanned Aerial Vehicle;

An Improved Algorithm for Beidou Double Satellite Positioning;

Comparison and Analysis of Improvement Schemes for RDSS Positioning Technology;

Tightly Coupled Integration Technology of RDSS Time Difference Carrier Phase/SINS and Its Experimental Research;

RDSS/SINS tightly coupled integrated navigation system for land vehicles;

On Ding Ling and the Big Dipper;

From analysis the word of TianXin in the bamboo book of The GuoDian Chu tomb ,this paper prove TianXin is Big Dipper which had been very near the northern celestial pole in remote age .

This design is going to achieve the design of a drawer chest and realize its industrial manufacture, carry out the engineering design of the plant of the furniture manufacture and solve the technology problems in practical manufactu.