Author(s): Hunter Mitchell, Oregon State University (First Author, Presenting Author) Brian Weaver, Oregon State University Chase Simpson, Oregon State University
This study evaluates absolute satellite-based positioning performance against traditional relative processing methods to investigate agreement of coordinates between processing strategies in preparation for the updated national reference system. The techniques developed are applied to ninety days of data collected from two reference networks that continuously observe GPS satellites. Initial results indicate that position differences (biases) between strategies are millimeter-level up to a few centimeters depending on the position component (horizontal and vertical), while internal consistency (precision) of the absolute positioning method is about 1 to 5 centimeters at a 99.7% confidence level.
