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Type of Document	Dissertation
Author	Hartlieb, Robert Joseph
URN	etd-03232004-132254
Persistent URL	http://resolver.caltech.edu/CaltechETD:etd-03232004-132254
Title	The cancellation of random disturbances in automatic control systems
Degree	PhD
Option	Aeronautics
Advisory Committee	Advisor Name Title H.S. Tsien Committee Chair
Keywords	none
Date of Defense	1956-01-01
Availability	unrestricted
Abstract A disturbance-cancelling feedback transfer function is proposed in a preliminary study for linear systems with constant coefficients. This idea is then experimentally demonstrated. In the main theory for more general systems, expressions are obtained for a computer which generates a cancelling input from measurements of the disturbances. The cases where there are fewer measurements than disturbances and also noisy measurements are treated. Three schemes and a basis for comparison are given. An example is calculated.
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