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Development and verification of a mathematical model to investigate the effects of earth-surface-based multipath reflections at a differential global positioning system ground reference site.

机译:开发和验证数学模型,以研究在差分全球定位系统地面参考站点处基于地球表面的多径反射的影响。

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This dissertation investigates errors on the pseudorange observable due to earth-surface induced multipath reflections. This research is important to Differential Global Positioning System (DGPS) users since multipath at the ground reference site is the major source of error. The theory used to develop this model is described. The model is then verified with real GPS data for various surfaces. The verification procedure was designed such that it could test the model's ability to predict the amplitude, phase, and phase-rate-of-change for multipath reflections from various media. Furthermore, the model was subjected to various antenna polarizations. This research provides a database of measured multipath errors from various surfaces that may be encountered at a DGPS ground reference site.
机译:本文研究了由于地表引起的多径反射引起的可观测伪距误差。这项研究对差分全球定位系统(DGPS)用户很重要,因为地面参考站的多径是主要的误差来源。描述了用于开发该模型的理论。然后使用各种表面的真实GPS数据验证模型。设计验证程序,以便可以测试模型预测各种介质的多径反射的幅度,相位和相位变化率的能力。此外,模型经受了各种天线极化。这项研究提供了一个在DGPS地面参考站点可能遇到的,来自各种表面的测得的多径误差数据库。

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