Research on location feasibility and arithmetic of multipoint cooperative positioning model based on BDS II

Nowadays, synergetics was being applied in more and more fields. Using the satellite positioning technology to realize the multiple points cooperative positioning has become a hottest research direction. Aimed at the problem in which if the unknown nodes can't received signal from sufficient satellites then the node can't be located in the single point positioning, this article constructed a multipoint cooperative positioning model based on the method of satellite pseudo-range positioning principle of BDS II. It also analyzed the judgment conditions and location feasibility when the unknown node received different number satellites, especially explained the positioning arithmetic about how to get the coordinate values of unknown nodes when each node can only receive three or two satellite in detail. This research provides a new way to solve the cooperative positioning for a terminal node in a complied scenic spot and obtain the location information for providing LBS under complicated and harsh environment which can't receive enough satellites. The output could be as a reference to guide the construction of information service platform for LBS in mobile environment, promote the positioning technology and method based on BDS applying to informationization construction and further the intersection and development of related disciplines.