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Graphical Representation of Signals

  • P. Atkinson

Abstract

Control engineering is mainly concerned with the control of large amounts of energy by means of ‘signals’ derived from a low-power source. A signal may be defined as a time-varying physical quantity carrying ‘information’ or ‘intelligence’. In the testing of systems the signals may be very simple in form but in actual operation they may be very complicated and even entirely random; for instance, consider a tracking radar system whose object is simply to point an aerial at a randomly moving target. During tests, artificial targets which perform simple movements such as ‘steps’, ‘ramps’ and ‘sinusoids’ will often be used. However, when the system is attempting to follow a target which is taking evasive action, the command signal will be virtually random.

Keywords

Graphical Representation Sine Wave Control Engineering Linear Position Industrial Control System 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© P. Atkinson 1968

Authors and Affiliations

  • P. Atkinson
    • 1
  1. 1.University of ReadingUK

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