Research of Coastal Station Distribution Algorithm Based on GDOP in Wireless Positioning System

Based on analyzing the principle of wireless navigation positioning, the geometrical dilution of precision is calculated. Using the optimal estimate principle, the geometrical dilution of precision reduced with the increase number of the coastal stations is proved. The coastal station distributed model is proposed under the condition of using the least number of coastal stations. The simulation based on the model is put up, the influence of the base length and the included angle on GDOP is obtained. The convenient and effective theory basis for the realization coastal stations establishment is provided.