An Improved TDOA Location Algorithm In LOS Environment

摘要：

Chan classic position algorithm based on TDOA is primarily intended for mobile base station on the ground. This paper focuses on low-altitude aircraft.and extend Chan algorithm to threedimensions space and inertial navigation system(INS) on the aircraft is used for real-time integrated navigation. Main idea is that the location algorithm is using time difference of arrival (TDOA) of CDMA cellular network pilot signals to make twice weighted least squares and absorbing recursive thought of Taylor algorithm and get vehicles location solutions and taking use of the original information of INS to eliminate fuzzy,fmally we obtain aircraft real-time location solution.Simulation show that compared with other classical algorithm under the same conditions, the algorithm is of high speed and high precision and the mean square error approach Cramer-Rao Lower Bound (CRLB). The algorithm have some reference value for Low- altitude aircraft location.

关键词： CDMA cellular network fuzzy elimination integrated navigatione

作者: Qu Baoping Shao Gang Jing Zhanrong

作者单位: School of Electronic Information Engineering Northwest Polytechnical University, NWPU Xian, China

会议类型: 国际会议

会议名称: 2012 4th International Conference on Intelligent Human-Machine Systems and Cybernetics 第4届智能人机系统与控制论国际会议 IHMSC 2012

会议地点: 南昌

会议语种:英文

页码: 70-73

在线出版日期: 2012-08-26（万方平台首次上网日期，不代表论文的发表时间）