|Table of Contents|

Design of Active Disturbances Rejection Control Law ofLow Altitude Sea-skimming Tow Target

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2012年05期
Page:
835-
Research Field:
Publishing date:

Info

Title:
Design of Active Disturbances Rejection Control Law ofLow Altitude Sea-skimming Tow Target
Author(s):
FANG Xiao-xing1WANG Yong1WANG Ying-xun2
1. Research Institute of Unmanned Aerial Vehicle,Beihang University,Beijing 100191,China;2. Department of Major Program Management,Aviation Industry Corporation of China,Beijing 100022,China
Keywords:
tow targets active disturbance rejection control track differentiators nonlinearfeedbackextended-state observers
PACS:
V249. 12
DOI:
-
Abstract:
To solve the problems that the modeling error and the internal and external disturbances ofthe low altitude sea-skimming tow target are great,an altitude control scheme based on the active dis-turbance rejection control technique is proposed. The contradiction of over-control and rapidity isharmonized by arranging the transient process,and the feedback of differential signal is achieved bytrack differentiator extracting the differential error signal. A nonlinear feedback method is used toimprove the control efficiency avoid using integrator. Finally,the un-modeled dynamics and unknowndisturbances in the system are estimated and compensated by the extended-state observer. Thesimulation results show that the control system has good dynamic capability, stable precision andstrong robustness when being imported several kinds of disturbances.

References:

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Last Update: 2012-11-26