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精确点定位 (PPP) 的实施:全面审查
Mohamed Elsheikh1,2, Umar Iqbal3, Aboelmagd Noureldin2,4
1Electronics and Electrical Communication Engineering Department, Tanta University, Tanta 31512, Egypt.
Sensors (Basel, Switzerland)
|November 14, 2023
概括
精确点定位 (PPP) 通过减轻全球导航卫星系统 (GNSS) 的错误来实现厘米级的精度. 本综述详细介绍了PPP方法和错误来源,用于自动驾驶和精密农业等应用.
科学领域:
- 地理学工程 工程地质学
- 卫星导航系统 卫星导航系统
- 地测测量 测量地质测量 测量地质测量
背景情况:
- 高精度定位对于自主系统和精准农业至关重要.
- 全球导航卫星系统 (GNSS) 能够准确地确定位置.
- 精确点定位 (PPP) 为差分技术提供了一个替代方案,以提高精度.
研究的目的:
- 综合审查全球导航卫星系统 (GNSS) 影响精确点定位 (PPP) 的错误来源.
- 检查各种PPP模型和纠正策略,以减轻这些错误.
- 为了证明双频 (DF) -PPP的实际实施和准确性.
主要方法:
- 审查已建立和新兴的GNSS错误来源 (离子层,热层,卫星轨道/时钟,偏差,地点移位).
- 分析不同的精确点定位 (PPP) 模型和校正数据源.
- 使用静态国际GNSS服务 (IGS) 数据和动态道路测试进行实验验证.
主要成果:
- 确定和详细解释影响PPP准确性的关键GNSS错误来源.
- 评估双频 (DF) -PPP模型,以实现厘米至毫米级定位.
- 通过静态和动态实验来证明DF-PPP的实际性能.
结论:
- 精确点定位 (PPP) 是一种高精度GNSS应用的可行技术.
- 了解和减轻GNSS错误源对于成功实施PPP至关重要.
- 双频 (DF) -PPP显示了需要精确定位的现实应用的巨大潜力.
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