基于运动单站的LTE辐射源定位技术

Long term evolution (LTE) signals have become major opportunity signals for positioning with the advantages of wide coverage, large bandwidth, good autocorrelation characteristics, strong anti-fading capability and high transmission power. The positioning method based on LTE signals uses the location information of the radiation source for calculation, and obtaining the location information of the radiation source in a non-cooperative environment is the basis of the positioning using LTE signals. A positioning method of LTE radiation sources using a mobile single station is proposed. Taking time difference of arrival (TDOA) as the observation quantity, a positioning model including clock error calibration is established, and the convergence and positioning accuracy of the algorithm are analyzed in terms of the single station's moving track and initial point selection. The performance of the positioning method is tested in the actual environment by pedestrian and vehicle, and the experimental results show that the positioning error of this method is less than 10 m.