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The cancellation of random disturbances in automatic control systems


Hartlieb, Robert Joseph (1956) The cancellation of random disturbances in automatic control systems. Dissertation (Ph.D.), California Institute of Technology.


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.

Item Type:Thesis (Dissertation (Ph.D.))
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Aeronautics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Tsien, Hsue Shen
Thesis Committee:
  • Unknown, Unknown
Defense Date:1 January 1956
Record Number:CaltechETD:etd-03232004-132254
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1064
Deposited By: Imported from ETD-db
Deposited On:23 Mar 2004
Last Modified:26 Dec 2012 02:35

Thesis Files

PDF (Hartlieb,jr_rj.pdf) - Final Version
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