Acquisition and loop control of ultra-tight INS/BeiDou integration system

作者：Zeng, Qinghua; Meng, Qian^*; Liu, Jianye; Feng, Shaojun; Wang, Huanhao

来源：Optik, 2016, 127(19): 8082-8089.

DOI：10.1016/j.ijleo.2016.06.009

• Ultra-tight integration
• BeiDou
• NH code evasion
• Vector tracking

Focus on the ultra-tight INS/GNSS integration, the NH code evasion method is proposed in BeiDou baseband signal process. An ultra-tight INS/BeiDou integration model based on vector tracking loop is built to analyze the coupling mechanism and control scheme between loop measurements and INS navigation data. Two control schemes are derived, including the relationship between code phase difference and the INS positioning error, the relationship between frequency difference and INS velocity error. A prototype based on BeiDou software-defined receiver and MEMS is designed and the model is tested.

• 出版日期2016
• 单位南京航空航天大学