%A WANG Yanran, ZHENG Yongguo, YU Xin %T The algorithm of wide area sub-meter single point positioning %0 Journal Article %D 2018 %J Journal of Shandong University(Engineering Science) %R 10.6040/j.issn.1672-3961.0.2016.481 %P 31-35 %V 48 %N 1 %U {http://gxbwk.njournal.sdu.edu.cn/CN/abstract/article_1696.shtml} %8 2018-02-20 %X In order to solve the problem that the traditional single point positioning was unable to meet the increased requirements of real-time positioning accuracy in the applications, a new algorithm of wide area sub-meter single point positioning in real-time was proposed. The embedded software within hardware or the APP software to get the precise location by using the positioning model of carrier smoothed pseudorange, it obtained the corrections of precision orbit and clock errors and ionospheric grid for GNSS satellites which was broadcast by IGS through the network, and it was based on the raw observations of satellites which was provided by single-frequency GNSS receiver. A large number of experimental results showed that this algorithm could be achieved better than 0.8 meter positioning accuracy on the planar direction, and better than 2 meter positioning accuracy on the elevation direction, using the same hardware cost as single-frequency receiver to achieved sub-meter positioning accuracy in real time and with fast convergence. This algorithm could provide real-time sub-meter high-accuracy location services within the wide area for most applications, without to build a large number of the ground augmentation base stations.