复杂环境下罗兰C/北斗组合导航系统GDOP仿真分析  

Emulational analysis for the GDOP of Loran C/Beidou integrated navigation system in complex environment

作　　者：佟海鹏[1] 徐海刚[1] 刘兆平[1] 

机构地区：[1]海军兵种指挥学院,广东广州510430

出　　处：《舰船科学技术》2012年第5期108-112,128,共6页Ship Science and Technology

摘　　要：导航系统的定位精度是影响舰船航行的重要因素。罗兰C系统和北斗定位系统由于受到台链地理位置、定位方式等因素的影响分别存在着定位精度低、安全保密性差等缺点。罗兰C/北斗组合导航系统则较好地解决了上述问题。针对几何精度因子(GDOP)方面对比研究了罗兰C系统和北斗定位系统组合前后的定位误差,并进行仿真分析。结果表明,组合后弥补了北斗定位系统有源定位的不足,一定程度上改善了罗兰C定位精度,提高了有效定位范围。The positioning precision of navigation system plays an important role in shipping. For the limitation of stations place and positioning mode, there are different problems such as low positioning precision and unsafe quality in Loran C and Beidou. Loran C/ Beidou integrated navigation system can settle above problems. In the paper, the positioning errors of Loran C, Beidou and Loran C/ Beidou integrated navigation were researched in allusion to GDOP contrastively. The simulation of GDOP was presented. The conclusion indicate：the positioning precision and useable extension of Loran C were improved and the shortage of active Beidou position system was made up after integrated.

关 键 词：罗兰C 北斗 组合导航 几何精度因子 定位误差 

分 类 号：U666.11[交通运输工程—船舶及航道工程]