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IEEE Control Systems

Issue 3 • Date June 1999

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Displaying Results 1 - 13 of 13
  • CDC98 at Tampa Bay

    Publication Year: 1999, Page(s):83 - 87
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    Freely Available from IEEE
  • Report on the fuzzy versus conventional control debate

    Publication Year: 1999, Page(s):88 - 91
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (508 KB)

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  • Board of Governors meeting report

    Publication Year: 1999, Page(s):92 - 99
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    Freely Available from IEEE
  • Fuzzy control as a disruptive technology

    Publication Year: 1999, Page(s):100 - 102
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (427 KB)

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  • The optimal use of the solar powered automobile

    Publication Year: 1999, Page(s):12 - 22
    Cited by:  Papers (6)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1264 KB)

    Once a solar car has been built and tested, the question arises as to how to race with it. Since most teams are extremely energy limited for a race, strategy becomes critical if one is to win. In Sunrayce '97, most of the terrain, as well as the data on stop signs and stop lights, was known by the Illinois team many months before the race. We needed to determine at what speed we should be travelin... View full abstract»

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  • The no free lunch theorem and the human-machine interface

    Publication Year: 1999, Page(s):8 - 10
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    The no free lunch (NFL) theorem tells us that without any structural assumptions on an optimization problem, no algorithm can perform better on average than blind search. Although for most such impossibility theorems, the proofs are lengthy, difficult, and often not at all intuitive, we can get a feel for the NFL theorem by considering the proverbial needle in a haystack problem. Clearly, in this ... View full abstract»

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  • From Wiener to hidden Markov models

    Publication Year: 1999, Page(s):41 - 51
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1268 KB)

    The authors investigate common properties of 3 types of filters obtained by considering various stochastic models; Wiener filters, Kalman filters and hidden Markov model (HMM) filters. Unifying features which particularly stand out are the forgetting of old data and of initial conditions, and protection from round-off error effects' overpowering the calculations. They differentiate the concept of ... View full abstract»

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  • Terrain navigation using Bayesian statistics

    Publication Year: 1999, Page(s):33 - 40
    Cited by:  Papers (33)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (760 KB)

    The performance of terrain-aided navigation of aircraft depends on the size of the terrain gradient in the area. The point-mass filter (PMF) described in this work yields an approximate Bayesian solution that is well suited for the unstructured nonlinear estimation problem in terrain navigation. It recursively propagates a density function of the aircraft position. The shape of the point-mass dens... View full abstract»

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  • Vision-based control of an air hockey playing robot

    Publication Year: 1999, Page(s):23 - 32
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1176 KB)

    We demonstrate an integrated sensing and control design for high-speed ballistic manipulation in two dimensions. We show the effectiveness of a vision-based switched control scheme for precision impulsive manipulation. Vision-based hybrid control is a promising avenue of research for fully autonomous interaction between robots and complicated environments. Much work remains to be done in both comp... View full abstract»

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  • Technique for enhancing the performance of discretized controllers

    Publication Year: 1999, Page(s):52 - 57
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    This paper introduces a method to partially compensate for the zero order hold effects of a closed-loop digital control system. By multiplying a given discretized controller in the Z-domain by a pole-zero pair, a significant closed-loop performance improvement has been achieved in many design examples View full abstract»

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  • Robust computer control of an inverted pendulum

    Publication Year: 1999, Page(s):58 - 67
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (940 KB)

    This article illustrates the design of a robust digital controller using a blend of state space and frequency response methods. The specific application is that of balancing an inverted pendulum on a moving cart while controlling the cart position. This work investigates issues regarding robust stability and disturbance attenuation. Furthermore, the effectiveness of a simple nonlinear compensation... View full abstract»

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  • QMotor 2.0-a real-time PC based control environment

    Publication Year: 1999, Page(s):68 - 76
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1592 KB)

    This paper describes QMotor 2.0, a QNX based single-processor software environment that allows the implementation of real-time control programs on standard Intel processor based personal computers (PCs). The control program, as well as the development tools and graphical user interface, can all execute simultaneously on the PC due to the deterministic response of the operating system. This archite... View full abstract»

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  • Enhancing classical controls education via interactive GUI design

    Publication Year: 1999, Page(s):77 - 82
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1840 KB)

    This column presents a graphical and somewhat automated tool for performing the iteration when using classical control design methods. The graphical user interface is an easy way for students to see the effect of the gain and the compensator pole-zero locations on the closed loop step response. Thus, the tool presented extends the capabilities of classical control design methods as they are curren... View full abstract»

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As the official means of communication for the IEEE Control Systems Society, the IEEE Control Systems Magazine publishes interesting, useful, and informative material on all aspects of control system technology for the benefit of control educators, practitioners, and researchers.

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Editor-in-Chief
Jonathan P. How
jhow@mit.edu