KSME International Journal

, Volume 12, Issue 3, pp 347–357 | Cite as

H control design for a seeker scan loop system

  • Ho-Pyeong Lee


TwoH Controllers are presented for a seeker scan loop system which has model uncertainty and is subject to external disturbance. The controllers are designed using a newH control framework formulated by combining the mixed sensitivity and model matching approaches for one-and two-degree-of-freedom control structures. The proposed control methods are able to reflect not only frequency domain specifications but also time domain ones such as transient response characteristics and multivariable interaction between output channels, contrary to the mixed sensitivity problem. It is shown that the two-degree-of-freedomH controller offers better performance and robustness than one-degree-of-freedomH controller, but both controllers are very effective for the seeker scan loop system.

Key Words

H Controllers Seeker Scan Loop System One-and Two-Degree-of-Freedom Control Structures Model Matching 


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Copyright information

© The Korean Society of Mechanical Engineers (KSME) 1998

Authors and Affiliations

  • Ho-Pyeong Lee
    • 1
  1. 1.Agency for Defense DevelopmentTaejonKorea

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