UAV ground multi-user positioning algorithm with data packet loss

• 1、School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, Beijing, 100876
• 2、Key Laboratory of Universal Wireless Communications, Ministry of Education

Abstract：Regarding the problem that individual ranging data is prone to packet loss when the UAV locates multiple users on the ground, this paper designs a strategy to improve the positioning accuracy in a data packet loss environment. In this paper, a packet loss model for the UAV ground-to-ground wireless positioning process is established, and based on the characteristics of the high correlation of the ranging values of neighbor users distributed in adjacent areas at various fixed points, a data filling strategy for missing values is proposed, calculate the correlation between each user and the user with missing data based on the complete part of the fixed-point ranging data, and then estimate the missing value. Afterwards, the algorithm simulation verifies the change of positioning error before and after data filling, and proves that the data filling strategy can effectively use the relevant information between multiple users on the ground to improve the positioning accuracy of the UAV to multiple users on the ground.

Keywords： UAV locates multiple users on the ground packet loss data filling strategy