Analysis of airships'; nodes configuration in near-space navigation and positioning system

作者：Gong Chang Qing^*; Wu Xiao Lian; Liu Yong

来源：Journal of PLA University of Science and Technology(Natural Science Edition), 2011, 12(2): 125-128.

• Configuration analysis
• Different heights
• Equilateral triangles
• Geometric dilution of precision
• MONTE CARLO
• Navigation and positioning
• Numeric simulation
• Position dilution of precision
• Position precision
• Precision improvement
• Research results

To improve the position precision the influence of the airships'; nodes configuration was analyzed by Monte-Carlo numeric simulation. In the simulation, the airship was established in square type and "Y" type at different height and distance, and then different GDOP(geometric dilution of precision) and PDOP(position dilution of precision) were found out. The research result was that the distribution of GDOP was disequilibrium if the airship was established in square type; that it has higher GDOP precision if the airship was established in "Y" type; and that under the same factors, the precision improvement approaches decuple. The conclusion is that the airship should be established in "Y" type, and that the outside three airships should be established in equilateral triangle type with one airship in the center, in which way more balanced and accurate result is provided.

• 出版日期2011