An Error Analysis of 2-Dimensional Attitude Determination System Using Global Positioning System

摘要

An analytical error characteristics of GPS com- pass which determines heading and elevation of the vehicle using carrier phase measurements from 2 antennae is given. It is also shown that to obtain more precise heading, longer baseline along the vehicle is preferred and the accuracy of heading is always better than that of elevation since the vertical measurement un- certainty caused by geometry of satellites affects only on the of elevation.