像素5与Pixel 9 Pro XL-Android设备正在向更好的GNSS性能发展吗?
Julián Tomaštík1, Jorge Hernández Olcina2, Šimon Saloň1
1Department of Forest Resources Planning and Informatics, Faculty of Forestry, Technical University in Zvolen, T.G. Masaryka 24, 96001 Zvolen, Slovakia.
Sensors (Basel, Switzerland)
|July 30, 2025
概括
谷歌Pixel 9 Pro XL显示了比Pixel 5更好的全球导航卫星系统 (GNSS) 信号接收. 然而,定位准确性各不相同,Pixel 5在开放区域的单点定位方面表现出色.
科学领域:
- 地理学工程 工程地质学
- 移动传感器 移动传感器
- 卫星导航 卫星导航 卫星导航 卫星导航
背景情况:
- 智能手机全球导航卫星系统 (GNSS) 技术性能因硬件和软件差异而在Android设备上有很大差异.
- 评估新型智能手机中的GNSS功能对于了解移动定位的进步和局限性至关重要.
研究的目的:
- 为了在不同的环境条件下比较谷歌Pixel 5和Pixel 9 Pro XL的GNSS信号质量和定位精度.
- 为了评估改进的信号接收对静态测量中的定位性能的影响.
主要方法:
- 使用谷歌Pixel 5和Pixel 9 Pro XL进行了为期五小时的静态GNSS测量.
- 在三个环境中测试性能:开放区域,天棚和室内.
- 分析原始GNSS数据,重点关注信号质量指标 (例如C/N0) 和定位精度 (单点定位和精确点定位).
主要成果:
- 与Pixel 5相比,Pixel 9 Pro XL表现出更高的信号完整性,更高的载波对噪声密度 (C/N0) 和更好的L5频率接收.
- 对于单点定位 (SPP),Pixel 5在开放条件下实现了更好的平均位置错误,而Pixel 9 Pro XL在天花板下表现更好.
- 静态方法在最佳条件下为两种设备提供了小于十米的精度;Pixel 9 Pro XL具有更高的固定率.
结论:
- 像Pixel 9 Pro XL这样的新型智能手机的增强信号接收并不能始终保证卓越的定位准确性.
- 智能手机GNSS仍然存在挑战,特别是关于信号质量限制和实现移动应用的精确定位.
- 未来的研究应该集中在软件增强和外部校正源上,以提高GNSS对移动用户的准确性.
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