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JACIII Vol.20 No.3 pp. 412-417
doi: 10.20965/jaciii.2016.p0412
(2016)

Paper:

Impact Time Control Guidance Law Considering Seeker’s Field-of-View Constraint Without Time-to-Go Information

Zhe Yang, Defu Lin, and Luyao Zang

School of Aerospace Engineering, Beijing Institute of Technology
Zhong Guan Cun South Street, Haidian District, Beijing 10081, China

Corresponding author

Received:
September 13, 2015
Accepted:
January 5, 2016
Published:
May 19, 2016
Keywords:
impact time control, field-of-view, time-to-go, sliding mode control, salvo attack
Abstract

Accurate time-to-go estimation with large heading angle error is difficult for homing guidance laws, especially for the impact time control. Considering this, a new cooperative guidance law which requires no time-to-go estimation is investigated. First, the impact time control problem is transformed to the look angle command tracking problem. The look angle command guarantees that the range-to-go error converges to zero asymptotically. Then the proposed guidance law considering the seeker’s field-of-view constraint is derived using sliding mode control to track the desired look angle signal. Numerical simulations are performed to verify the effectiveness of the proposed guidance law for one-to-one and many-to-one engagement scenarios.

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Last updated on Oct. 19, 2017