Accession Number : AD0480522


Title :   CONTROL SYSTEM IDENTIFICATION THROUGH MODEL MODULATION METHODS


Descriptive Note : Master's thesis


Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA


Personal Author(s) : Dreesen, Robert F ; Hoover, Harry A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/480522.pdf


Report Date : Jan 1963


Pagination or Media Count : 98


Abstract : Adaptive control system techniques have been utilized to investigate identification of the dynamic equations of operating control systems. The identification has been achieved by using model modulation techniques to drive dynamic models into correspondence with operating control systems. The system identification then proceeded from examination of the model and the adaptive loop. The model modulation techniques applied to adaptive control systems are briefly discussed. These techniques applied to simulation studies on an analog computer and a digital computer, and applied directly to a position servo- mechanism, are then discussed. The discussion presents data showing the accuracy of identification of the dominant characteristics of the dynamic equations when the order of the equation is either known or approximated. It was found that these dominant roots could be found within an average accuracy of 5% for both complex phase angle and undamped natural frequency.


Descriptors :   *ADAPTIVE CONTROL SYSTEMS , ANALOG COMPUTERS , COMPUTER PROGRAMMING , DIGITAL COMPUTERS , EXPERIMENTAL DATA , GRAPHICS , IDENTIFICATION SYSTEMS , MATHEMATICAL ANALYSIS , MATHEMATICAL MODELS , MODULATION , SERVOMECHANISMS


Subject Categories : Aircraft
      Electrical and Electronic Equipment


Distribution Statement : APPROVED FOR PUBLIC RELEASE