Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2015, Vol. 38 ›› Issue (3): 94-98.doi: 10.13190/j.jbupt.2015.03.015

• Papers • Previous Articles     Next Articles

A Satellite Mobile Terminals Cooperative Autonomous Positioning Algorithm Based on Enhanced Kalman Filter

HE Yi-zhou1,2, CUI Gao-feng1, LI Peng-xu1, WANG Cheng1, WANG Wei-dong1   

  1. 1. The School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China;
    2. The Science and Technology on Information Transmission and Dissemination in Communication Networks Laboratory, Shijiazhuang 050081, China
  • Received:2015-02-11 Online:2015-06-28 Published:2015-06-28

Abstract:

In order to improve satellite mobile communication system's capability to carry out independent and accurate location, a satellite mobile terminals cooperative autonomous positioning algorithm based on Kalman filter(K-ACT) is proposed. Utilize unlocated user terminals in the same beam to execute signal interaction, acquire center parameters of satellites and beams through satellite broadcasting channel, and carry out Kalman filter optimization to finalize accurate coordinates. The result of simulation suggests that K-ACT algorithm is capable of realizing relatively accurate user terminal location, and fluctuation of location decreases as the number of assistant user terminals increases, resulting in higher stability of location.

Key words: mobile satellite communications, terminal cooperation, location estimate, Kalman filter

CLC Number: