By Topic

Potentials, IEEE

Issue 4 • Date Oct.-Nov. 1998

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Displaying Results 1 - 7 of 7
  • Automated highway systems

    Page(s): 7 - 11
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (826 KB)  

    Currently, intelligent transportation systems are being developed and implemented in various forms. Advanced traffic management systems (ATMS), automatic traveler information systems (ATIS) and driver support systems are all a reality today. However, many challenges remain on the road to realizing a fully automated highway system (AHS). The complexity of developing large distributed systems such as AHS has raised warning flags in the computer science community. Unexpected complex interactions between the software and hardware can induce errors that can be fatal. The authors argue that these issues should provide a cautionary note to practicing engineers before deploying a fully automated highway system. View full abstract»

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  • Controller area network [automotive applications]

    Page(s): 12 - 14
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (744 KB)  

    The controller area network (CAN) is becoming a de facto standard for data transmission in automotive applications. Such applications are characterized by their obligation to respect stringent time and dependability constraints. This is why it is vital, at the design step, to validate their behavior. The verification is based on the performance evaluation of the operational architecture. The authors' approach involves: (1) building models (both analytic and simulation) and solving them (model-based evaluation); and (2) performing network monitoring on a prototype of the system (prototype-based evaluation). Automotive communications systems face an extremely hostile electrical environment (strong electromagnetic disturbances). To assume it is a 100% reliable medium is irresponsible in the face of such reality. So, the authors focus on transmission errors that may cause missed deadlines because of retransmitting corrupted frames. They propose using a flexible error-model for assessing the transmission's reliability and for designing well-suited message scheduling policies View full abstract»

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  • Liquid crystal displays

    Page(s): 38 - 42
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    The author begins with an introduction to the study of liquid crystals and goes on to consider their use as liquid crystal displays. The processes involved and their operation and evolution are also considered View full abstract»

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  • The World Wide Web

    Page(s): 33 - 37
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    After a brief discussion of what the World Wide Web is the authors go on to discuss: client server architecture, hypertext transfer protocol and setting up a Web server View full abstract»

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  • Fiber optics [geophysical strain sensor]

    Page(s): 15 - 18
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    Discusses the use of phase-based fiber optic sensors for Earth strain measurements in order to monitor stress changes. After discussing the measurement principles the authors consider the design of the sensor and read-out system. The system has been installed at White Sands Missile Range View full abstract»

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  • LANDMARC [land mine detection]

    Page(s): 19 - 20
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    Discusses the detection of land mines. For this purpose the Lawrence Livermore National Laboratory (LANL) has combined its micropower impulse radar and imaging technologies. The system is called the land-mine detection advanced radar concept, or LANDMARC View full abstract»

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  • Telecommunication and networking solutions

    Page(s): 29 - 32
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    Discusses some of the latest developments in the telecommunication network and computer network industries. ATM is considered with particular reference to LANs. Digital subscriber lines and wavelength division multiplexing are also considered. The advantages and limitations of each are discussed View full abstract»

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Aims & Scope

IEEE Potentials is the magazine dedicated to undergraduate and graduate students and young professionals.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
David Tian
Carnegie Mellon University
david.tian@ieee.org