New Mathematical Model for GNSS Relative Positioning Resolving

In order to overcome the problem of the traditional model, a new model was proposed for relative positioning resolving of global navigation satellite system (GNSS). With the coordinates of reference station known in advance, this model is different from the traditional model that its coefficient matrix remains unchanged in resolving, so it is convenient to describe the converging process of the least squares and benefit for error analysis and improving search efficiency in coordinate domain, and this model has certain application potentiality. The experimental results show that the proposed model has the same position accuracy as the traditional model, i.e., the first-order Taylor series expansion, to verify its validity and reliability, so it can be used to replace the traditional model in relative positioning.