Long-Baseline Differential Doppler Positioning Using Space-Based SOP Based on BPVGMM
- 所属单位：北京航空航天大学
- 发表刊物：IEEE Transactions on Instrumentation and Measurement
- 关键字：Differential positioning, Doppler, Iridium, longbaseline, signal-of-opportunity.
- 摘要：Positioning based on low Earth orbit (LEO) satellites’signals of opportunity (SOPs) is an effective complement and backup positioning solution of global navigation satellite system (GNSS). The major sources of error that have to be considered in the positioning technology based on LEO satellites’SOP are ephemeris and satellite clock errors with space–time relevance. Although the differential positioning can effectively reduce the error, positioning error is still large due to the low orbit of the satellites in the long-baseline scenario. To address the forementioned challenge, a differential Doppler positioning
algorithm based on baseline projection vector geometric model
modification (BPVGMM) is proposed. Simulation results show
that the BPVGMM algorithm has significantly better accuracy in
the long-baseline positioning case than the traditional algorithm,
and the validity of the algorithm is verified by differential positioning experiments using signals from Iridium NEXT satellites.
- 论文类型：期刊论文
- 一级学科：信息与通信工程
- 文献类型：期刊
- 是否译文：否
- 收录刊物：SCI
附件：
2023-TIM-Long baseline Differential Doppler Positioning Using Space-based SOP Based on BPVGMM.pdf
