Chapter
Apr 26, 2012
New Interceptor Guidance Law Using LOS Rate Only
Authors: Yuan Tian [email protected], Jian Chen, Junbo Wang, and Zhang Ren [email protected]Author Affiliations
Publication: Earth and Space 2010: Engineering, Science, Construction, and Operations in Challenging Environments
Abstract
A new guidance strategy using only the line-of-sight (LOS) rate measurement is proposed for the missiles with passive seekers. The initial relative range, initial closing velocity and their error boundaries are utilized to obtain their estimations according to the missile-target kinematics. A guidance law based on sliding mode control (SMC) theory is firstly presented, in which the boundary of target maneuvering ability is needed and the chattering phenomenon inevitably exists. In order to overcome the disadvantages above, an expression with a time-varying parameter is introduced to the new guidance law and the stability analysis is included. One of the main features of the proposed guidance strategy is that it reduces the influence of the relative range and the closing velocity on the interception and enhances the effect of LOS rate. The performance of the new guidance law is studied via a computer simulation. The effectiveness of the new guidance law is illustrated through intercepting two kinds of maneuvering target successfully.
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© 2010 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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School of Automation and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing, 100191, China. E-mail: [email protected]
Jian Chen
School of Automation and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing, 100191, China
Junbo Wang
School of Automation and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing, 100191, China
School of Automation and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing, 100191, China. E-mail: [email protected]
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