TY - JOUR
T1 - 基于滑模扰动观测器的导引头隔离度在线抑制
AU - Zhang, Wenjie
AU - Li, Wei
AU - Xia, Qunli
AU - Du, Xiao
N1 - Publisher Copyright:
© 2019, Editorial Board of Journal of Infrared and Laser Engineering. All right reserved.
PY - 2019/9/25
Y1 - 2019/9/25
N2 - In order to reduce the influence of seeker's disturbance rejection rate (DRR) on the output line-of-sight (LOS) angular rate, an online inhibition method for DRR was proposed. Firstly, the transfer functions of different guidance signal extraction points were established based on the platform seeker. Subsequently, the disturbance torque was regarded as the interference angular acceleration and the finite-time sliding mode disturbance observer (SMDOB) was used to estimate it and compensate it into the control loop in real time, so that the additional LOS angular rate caused by the DRR was greatly reduced. The simulation results show that the designed SMDOB could quickly track the disturbance, which is convenient for online compensation and inhibition for LOS deviation caused by DRR. Adopting the proposed strategy, the LOS angular rate error caused by the interference is substantially eliminated, and the accuracy of the output LOS angular rate is improved, which is beneficial for precise guidance.
AB - In order to reduce the influence of seeker's disturbance rejection rate (DRR) on the output line-of-sight (LOS) angular rate, an online inhibition method for DRR was proposed. Firstly, the transfer functions of different guidance signal extraction points were established based on the platform seeker. Subsequently, the disturbance torque was regarded as the interference angular acceleration and the finite-time sliding mode disturbance observer (SMDOB) was used to estimate it and compensate it into the control loop in real time, so that the additional LOS angular rate caused by the DRR was greatly reduced. The simulation results show that the designed SMDOB could quickly track the disturbance, which is convenient for online compensation and inhibition for LOS deviation caused by DRR. Adopting the proposed strategy, the LOS angular rate error caused by the interference is substantially eliminated, and the accuracy of the output LOS angular rate is improved, which is beneficial for precise guidance.
KW - Disturbance
KW - Disturbance rejection rate
KW - Finite time convergence
KW - On-line compensation
KW - Sliding mode observer
UR - http://www.scopus.com/inward/record.url?scp=85073197992&partnerID=8YFLogxK
U2 - 10.3788/IRLA201948.S213002
DO - 10.3788/IRLA201948.S213002
M3 - 文章
AN - SCOPUS:85073197992
SN - 1007-2276
VL - 48
JO - Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
JF - Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering
M1 - S213002
ER -