Linear Observer Based Control with the Nonlinear Macroeconometric Model

1998 ◽  
pp. 211-238
Author(s):  
Ric D. Herbert
Keyword(s):  
Macroeconometric Model ◽  
Linear Observer

Application of Practical Observer to Semi-Active Suspensions

1998 ◽  
Vol 122 (2) ◽  
pp. 284-289 ◽  
Author(s):  
H. Nakai ◽  
S. Oosaku ◽  
Y. Motozono
Keyword(s):  
Ride Comfort ◽  
Difficult Problem ◽  
Nonlinear Observer ◽  
Vertical Acceleration ◽  
Acceleration Sensor ◽  
Active Suspensions ◽  
Linear Observer ◽  
Gain Scheduled

This paper presents the development of gain-scheduled observers for semi-active suspensions. The states of the semi-active suspensions must be accurately obtained because the accuracy directly affects system performances such as ride comfort. Nonlinearity in the absorber of the semi-active suspensions is a difficult problem for estimating the accurate states using conventional linear observer theories. To solve this problem, we have designed a new gain-scheduled observer by introducing two improvements. The validity of this nonlinear observer was confirmed by simulations and experiments. The results indicate that the present observer can accurately estimate the suspension stroke velocity using the vertical acceleration sensor on the sprung mass. [S0022-0434(00)02302-9]

A block triangular observer form for non-linear observer design

2008 ◽  
Vol 81 (2) ◽  
pp. 177-188 ◽  
Author(s):  
Y. Wang ◽  
A. F. Lynch
Keyword(s):  
Observer Design ◽  
Non Linear ◽  
Linear Observer

scholarly journals Comparative investigations of nonlinear and linear observers for a highly manoeuvrable target in sliding mode guidance

2017 ◽  
Vol 65 (2) ◽  
pp. 233-245
Author(s):  
Y. Wang ◽  
M. Sun ◽  
S. Du ◽  
Z. Chen
Keyword(s):  
Sliding Mode ◽  
Guidance System ◽  
Key Factors ◽  
Factors Affecting ◽  
First Order ◽  
Guidance Law ◽  
Linear Observer ◽  
Overall Performance ◽  
Twisting Algorithm ◽  
Different Levels

Abstract Target manoeuvre is one of the key factors affecting guidance accuracy. To intercept highly maneuverable targets, a second-order sliding-mode guidance law, which is based on the super-twisting algorithm, is designed without depending on any information about the target motion. In the designed guidance system, the target estimator plays an essential role. Besides the existing higher-order sliding-mode observer (HOSMO), a first-order linear observer (FOLO) is also proposed to estimate the target manoeuvre, and this is the major contribution of this paper. The closed-loop guidance system can be guaranteed to be uniformly ultimately bounded (UUB) in the presence of the FOLO. The comparative simulations are carried out to investigate the overall performance resulting from these two categories of observers. The results show that the guidance law with the proposed linear observer can achieve better comprehensive criteria for the amplitude of normalised acceleration and elevator deflection requirements. The reasons for the different levels of performance of these two observer-based methods are thoroughly investigated.

SOVMOD. A Macroeconometric Model of the Soviet Union.

1979 ◽  
Vol 89 (355) ◽  
pp. 669 ◽  
Author(s):  
R. Portes ◽  
Donald W. Green ◽  
Christopher I. Higgins
Keyword(s):  
Soviet Union ◽  
Macroeconometric Model ◽  
The Soviet Union

High and Low-Skilled Labour in a Macroeconometric Model of the Netherlands

1998 ◽  
pp. 243-271 ◽  
Author(s):  
D. P. Broer ◽  
D. A. G. Draper ◽  
A. Houweling ◽  
F. H. Huizinga ◽  
P. A. de Jongh
Keyword(s):  
The Netherlands ◽  
Skilled Labour ◽  
Macroeconometric Model
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