研究全球导航卫星系统接收器对无人驾驶汽车的准确性
Rosen Miletiev1, Peter Z Petkov1, Rumen Yordanov2
1Faculty of Telecommunication, Technical University of Sofia, 1000 Sofia, Bulgaria.
Sensors (Basel, Switzerland)
|September 28, 2024
概括
双频全球导航卫星系统 (GNSS) 接收器显著提高了无人驾驶车辆的导航精度. 分析精度稀释 (DOP) 参数显示在子计范围的精度提高,有利于自主系统.
科学领域:
- 导航系统工程 导航系统工程
- 地理学工程 工程地质学
- 机器人技术 机器人技术 机器人技术
背景情况:
- 高精度导航对于无人地面和空中飞行器至关重要,因为自主操作和交通增加.
- 现有的L1频段全球导航卫星系统 (GNSS) 接收器具有成本效益,但在许多民用应用中缺乏足够的准确性.
- 实时动态 (RTK) 系统提供亚厘米精度,但对于广泛使用来说价格过高.
研究的目的:
- 分析和比较最新一代双频GNSS接收器与L1频段接收器的精度稀释 (DOP) 参数.
- 评估双频GNSS集成对无人驾驶汽车应用中的导航精度的影响.
- 评估先进的GNSS接收器技术和多星座信号接收所带来的性能改进.
主要方法:
- 使用作者设计的L1/L5频段补丁和宽带螺旋天线对DOP参数进行比较分析.
- 一个领先的制造商对不同代GNSS接收器的评估.
- 评估增加卫星跟踪能力对位置准确性的影响.
主要成果:
- 双频段GNSS接收器在导航精度上显著提高,达到次米准确度.
- 多星座信号接收进一步增强定位能力.
- 在GNSS接收器处理能力的进步允许增加卫星跟踪,提高准确性,甚至对于L1频段系统.
结论:
- 双带GNSS接收器的集成是实现无人驾驶车辆高精度导航的实际解决方案.
- 双频技术,结合多星座支持和改进的接收器硬件,大大提高了导航性能,扩大了应用可能性.
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