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- Title
低成本亚米级 PPP/ INS 组合导航定位系统研究.
- Authors
王 博; 武瑞宏; 许双安; 叶 茂; 邓 川; 张卫龙
- Abstract
In the construction of railway intelligent construction sites, there are demands for real-time positioning and safety management of vehicles, machines, and personnel. A sub-meter-level, low-cost, micro-electro-mechanical sensor (MEMS)-based PPP/INS integrated navigation and positioning system was designed. Firstly, the PPP/INS loosely-coupled navigation and positioning method based on zero velocity update (ZUPT) and non-holonomic constraints (NHC) algorithm was introduced. The system composition was introduced, and the dynamic positioning accuracy of the system in open environment and semi open environment was analyzed through vehicle experiments. The experimental results show that, the system can meet sub-meter positioning accuracy in open environment, and the positioning accuracy in semi-open environment is better than 1. 0%×loss of lock distance, which has obvious advantages compared with PPP and u-blox SPP single system positioning. The research results have certain reference value for low-cost, sub-meter navigation and positioning research and achievement transformation in railway smart site location services.
- Subjects
NONHOLONOMIC constraints; RAILROAD design &; construction; REFERENCE values; BUILDING sites; INERTIAL navigation systems; NAVIGATION; DYNAMIC positioning systems; RAILROAD management
- Publication
Railway Investigation & Surveying, 2023, Vol 49, Issue 2, p8
- ISSN
1672-7479
- Publication type
Article
- DOI
10.19630/j.cnki.tdkc.202208180004