全球导航卫星系统应用
计算机科学
全球导航卫星系统增强
遥感
全球定位系统
地理
电信
作者
Ellarizza Fredeluces,Tomohiro Ozeki,Nobuaki Kubo,Ahmed El‐Mowafy
出处
期刊:Sensors
[MDPI AG]
日期:2024-04-24
卷期号:24 (9): 2712-2712
摘要
Real-Time Kinematic Global Navigation Satellite System (RTK-GNSS) is currently the premier technique for achieving centimeter-level accuracy quickly and easily. However, the robustness of RTK-GNSS diminishes in challenging environments due to severe multipath effects and a limited number of available GNSS signals. This is a pressing issue, especially for GNSS users in the navigation industry. This paper proposes and evaluates several methodologies designed to overcome these issues by enhancing the availability and reliability of RTK-GNSS solutions in urban environments. Our novel approach involves the integration of conventional methods with a new technique that leverages surplus satellites—those not initially used for positioning—to more reliably detect incorrect fix solutions. We conducted three tests in densely built-up areas within the Tokyo region. The results demonstrate that our approach not only surpasses the fix rate of the latest commercial receivers and a popular open-source RTK-GNSS program but also improves positional reliability to levels comparable to or exceeding those of the aforementioned commercial technology.
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