Title :
Tracking methods of high speed strong maneuvering targets in near space
Author :
Yunhe Cao ; Jie Jiang ; Shenghua Wang ; Youyou Fan
Author_Institution :
Nat. Lab. of Radar Signal Process., Xidian Univ., Xi´an, China
Abstract :
In order to alleviate the model-mismatching and improve tracking precision of high speed strong maneuvering targets in near space, a new strong tracking filter algorithm with improved jerk model is proposed. The improved jerk model, in which the acceleration is assumed to be an exponential-correlated random process with non-zero mean, is used in the paper. Moreover, a fading factor is introduced in extended kalman filter tracking which can adjust covariance matrix adaptively and improve state estimation of the maneuvering target. Finally, the simulation results show that the algorithm improves the tracking performance of the high speed strong maneuvering targets in near space.
Keywords :
Kalman filters; covariance matrices; nonlinear filters; target tracking; covariance matrix; exponential-correlated random process; extended kalman filter tracking; fading factor; high speed strong maneuvering targets; jerk model; model-mismatching; tracking filter algorithm; tracking methods; tracking precision; Abstracts; Acceleration; Measurement uncertainty; Noise; Q measurement; Target tracking; extended kalman filter; fading factor; improved jerk model; maneuvering target tracking; near space;
Conference_Titel :
Signal Processing (ICSP), 2014 12th International Conference on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4799-2188-1
DOI :
10.1109/ICOSP.2014.7015320