Journal of the Korean Society for Precision Engineering (한국정밀공학회지)
- Volume 7 Issue 1
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- Pages.74-85
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- 1990
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- 1225-9071(pISSN)
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- 2287-8769(eISSN)
Control of a Helicopter in Hover Using the LQG and LQG/LTR Methods
LQG와 LQG/LTR방법을 이용한 헬리콥터의 비행위치 제어
- Published : 1990.03.01
Abstract
The LQG and LQG/LTR compensators have the same structrues in dynamics. The only difference is the values of the design parameters in the two compensators. The design parameters of the LQG and LQG/LTR compensators are selected in the sense of the least-squares error minimi- zation and loop shaping, respectively. In this paper, the LQG and LQG/ LTR design methods are applied to the helicopter in hover which is modeled as a SISO fourth order system. The dynamic characteristics and the perfor- mance of the two control systems are analyzed by the computer simulation. It is found that the LQG/LTR design method is systematic and has good performance in comparision with the LQG design method.
Keywords