Self-adaptive control systems
Thaler, George J. (George Julius)
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The control of supersonic aircraft presents a difficult problem because the variation in aerodynamic parameters over the range of flight conditions encountered is too great to be compensated for by conventional techniques It is generally recognized that the problem is basically nonlinear in nature , and the usual procedure is to use some type of nonlinear compensation to permit self adaptation within the system „ Most of the schemes which have been proposed to date are reviewed here in considerable detail 9 and it is seen that the mechanization required is rather complex The basis for a proposed study is then developed In essence it consists of the use of active networks in the autopilot to provide complex zero compensators which confine the excursions of roots during parameter variation to acceptable areas on the s-plane The proposed mechanization is simple , and it may be possible to reduce self adaptation to the status of a vernier adjustment, or eliminate it entirely.
NPS Report NumberTechnical Report No. 18
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