Effects of Input and Output Predictions on Manual Control Performance

1978 ◽  
Vol 22 (1) ◽  
pp. 360-364 ◽  
Author(s):  
Tarald O. Kvålseth

This study analyzed the possible effects of providing the human operator with either input or output predictions during digital control tasks. The output predictions were generated by a method somewhat related to the fast-time model predictions used for time-continuous control systems, while the input predictions were of a statistical nature. The results indicated that output predictions tended to enhance the control performance, especially for subjects with no previous digital control experience. However, the input predictions did not have any significant effects on the performance during either the pursuit or the compensatory control mode.

2020 ◽  
Vol 11 (2) ◽  
pp. 61-73
Author(s):  
Irina Viktorovna Rasina ◽  
Oles Vla\-di\-mi\-ro\-vich Fesko

In this paper, we derive sufficient relative minimum conditions for discrete-continuous control systems on the base of Krotov’s sufficient optimality conditions counterpart. These conditions can be used as verification conditions for suggested control mode and enable one to construct new numerical methods.


Author(s):  
Vjacheslav Lachin ◽  
◽  
Anatoly Gaiduk ◽  
Alexandr Muzhenko ◽  
◽  
...  

This article is devoted to development of a method of the digital control systems design with not gaged state variables of the object with uncertain nonlinearity. Application of two observers to find the asymptotic es-timates of the nonlinearity and the state vector of the object is the main feature of the developed approach. The problem of designing is solved on the basis of the discrete-time model of the object with application of the con-trol on output and impacts and the standard normalized transfer functions. It allows to provide the required indicators of quality both in established, and in a transient mode. The numerical example illustrates effectiveness of the developed method. The obtained results can be used to design of digital control systems which can significantly increase effectiveness of the controlled objects as production and special assignment.


AIAA Journal ◽  
1970 ◽  
Vol 8 (4) ◽  
pp. 820-822
Author(s):  
CHARLES L. PHILLIPS ◽  
JOHN C. JOHNSON

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