Optimal control and sub-optimal control for single-input single-output deadbeat repetitive systems

2002 ◽  
Author(s):  
E. Kondo ◽  
T. Kiyota ◽  
J. Matsuda
Keyword(s):  
Optimal Control ◽  
Single Input Single Output ◽  
Single Output ◽  
Single Input ◽  
Repetitive Systems

On the Design of Adaptive Servosystems

1975 ◽  
Vol 97 (4) ◽  
pp. 326-332
Author(s):  
M. Tomizuka
Keyword(s):  
Dynamical System ◽  
Optimal Control ◽  
Computer Simulation ◽  
Tracking Error ◽  
Pole Assignment ◽  
Single Input Single Output ◽  
Assignment Method ◽  
Single Output ◽  
Single Input ◽  
Command Signal

This paper deals with tracking problems in which the plant is single-input single-output and the desired trajectory (command signal) is regarded as the output of an unknown free dynamical system. Two procedures are presented for designing adaptive servosystems which enable the plant output to follow the command signal with zero ultimate tracking error. The first procedure uses a pole assignment method and the second utilizes a result of optimal control. An illustrative example is given, and the effectiveness of the adaptive servosystem is verified by computer simulation.

Comparative analysis of SISO and wavelength diversity-based FSO systems at different transmitter power levels

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Varun Srivastava ◽  
Abhilash Mandloi ◽  
Dhiraj Kumar Patel
Keyword(s):  
Optical Signal ◽  
Free Space Optical ◽  
Optical Source ◽  
Transmit Power ◽  
Single Input Single Output ◽  
Transmitter Power ◽  
Single Output ◽  
Communication Links ◽  
Single Input ◽  
Matching Performance

AbstractFree space optical (FSO) communication refers to a line of sight technology, which comprises optical source and detector to create a link without the use of physical connections. Similar to other wireless communication links, these are severely affected by losses that emerged due to atmospheric turbulence and lead to deteriorated intensity of the optical signal at the receiver. This impairment can be compensated easily by enhancing the transmitter power. However, increasing the transmitter power has some limitations as per radiation regulations. The requirement of high transmit power can be reduced by employing diversity methods. This paper presents, a wavelength-based diversity method with equal gain combining receiver, an effective technique to provide matching performance to single input single output at a comparatively low transmit power.

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