Improving the Accuracy of GNSS Data in the Absolute Point Positioning Based on Linear Relational Model

Abstract

The aim of this study is to improve GNSS based absolute point positioning accuracy to adequate many applications and reduce the observation time of surveying depending on the Improved Absolute Positioning (IAP) technique. IAP it's a new technique that uses the Linear Relational (LR) model or any other model to improve the accuracy of GNSS data in absolute positioning. Performance evaluation of the IAP technique was based on a compilation of different statistical parameters and goodness-of-fit measures and then outcomes of the LR model in different cases were compared. This study showed a series of significant improvements in the GNSS data in absolute positioning based on the IAP technique. Therefore, it can be applied for improving the accuracy of coordinates from the absolute point positioning in various works and presents suitable accuracy for different engineering applications. In addition, this technique introduces a low-cost technique as a result of reducing the observation time and using a single receiver.