GPS-based three-dimensional Locus fitting algorithm

摘要

To solve the problems that difficulties to obtain geographical coordinates and meet the high performance requirements of the fitting equation while making a three-dimensional locus fitting of the low-speed moving object, a GPS-based threedimensional Locus fitting algorithm is raised in this paper. The algorithm's mathematical model is built on parametric equations which do the fitting operation according to the longitude, latitude and altitude collected by a GPS receiver. The Algorithm has a feature of automatic correction that it makes the data, received by the GPS receiver, is divided into several phases according the number of parametric equations' coefficient, and the locus-fitting is done in every phase, so that the mathematical model can modify the equations in the equations automatically.