A Dynamic Target Real-time Tracking Method Based on Two-dimensional Galvanometer Mirror System
LIU Xiangyu
QIAN Jiaxin
LI Maoran
GENG Shuqiao
WANG Lichao
Abstract：To address the problem that traditional target tracking methods were difficult to achieve continuous and effective tracking due to limited observation field of view and external occlusion of the target,a dynamic target real-time tracking method based on two-dimensional galvanometer mirror system(GDTM)was proposed.Firstly,a forward-shifted field of view module was adopted to improve the two-dimensional galvanometer mirror system,which enabled the observation field of view to move rapidly with dynamic targets and expanded the observation range simultaneously.Secondly,a nonlinear constrained window(NCW)was designed to allow dynamic targets to be stably maintained within the local region of interest.Finally,the average peak-to-correlation energy(APCE)was used as the occlusion judgment criterion,and the unscented Kalman filter(UKF)was adopted to predict the optical axis angle of the galvanometer,thereby achieving the tracking of occluded targets.The results showed that in terms of prediction tracking accuracy,the UKF used in GDTM was improved by 28.57%and 16.67%respectively,compared with the Kalman filter(KF)and the extended Kalman filter(EKF).This method was characterized by such advantages as fast response,strong robustness,and low cost,and could continuously and stably track occluded dynamic targets over a large range.
Keywords：restricted observation fieldsexternal occlusiontwo-dimensional galvanometer systemlocal region of interestunscented Kalman filter
Publication Date：2025-12-30
Online Publishing Date：2025-12-10(First online date of this platform, not the publication date of the document)
Pages：7( 529-534,540 )