デジタルツインによるデータベース補正を用いた都市部でのGNSS測位精度向上
Improving GNSS Positioning in Challenging Urban Areas by Digital Twin Database Correction
都市部のGNSS測位を改善するため、グリッド型デジタルツイン上で仮想受信機の測位をシミュレーションし、統計モデルに基づく補正情報データベースを生成する手法を提案した。
著者: Jiarong Lian, Jiayi Zhou, Guohao Zhang, Li-Ta Hsu
分類: cs.RO
原文アブストラクト
Accurate positioning technology is the foundation for industry and business applications. Although indoor and outdoor positioning techniques have been well studied separately, positioning performance in the intermediate period of changing the positioning environment is still challenging. This paper proposed a digital twin-aided positioning correction method for seamless positioning focusing on improving the receiver's outdoor positioning performance in urban areas, where the change of the positioning environment usually happens. The proposed algorithm will simulate the positioning solution for virtual receivers in a grid-based digital twin. Based on the simulated positioning solutions, a statistical model will be used to study the positioning characteristics and generate a correction information database for real receivers to improve their positioning performance. This algorithm has a low computation load on the receiver side and does not require a specially designed antenna, making it implementable for small-sized devices.
