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Aerospace and Electronic Systems Magazine, IEEE

Issue 6 • Date June 2003

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Displaying Results 1 - 7 of 7
  • Nature's efficient energy production, storage, and data processing

    Publication Year: 2003 , Page(s): 37 - 40
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (325 KB)  

    Converting the solar energy received on the surface of the Earth has not been practical with heat engines because of the low density of this energy. On a clear bright day in the summer, the sun generally delivers less than 80 W per square foot. Also, heat engines are prohibited from exceeding the Carnot-cycle efficiency limit. On the other hand, plants perform their energy conversion electrochemic... View full abstract»

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  • Collaborative testing & support via the Internet

    Publication Year: 2003 , Page(s): 25 - 29
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (461 KB)  

    The Internet and its current infrastructure provide many opportunities to exploit improved electronics testing by increasing collaboration among individuals worldwide. This paper proposes several ways to take advantage of the ubiquitous Internet infrastructure, its applications, and increasing network bandwidth to better share knowledge between engineering and test technicians, and to build and ma... View full abstract»

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  • Hypothesis management for information fusion

    Publication Year: 2003 , Page(s): 3 - 8
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (487 KB)  

    The efficient management of large collections of fusion hypotheses presents a critical challenge for scaling high-level information fusion systems to solve large problems. We motivate this challenge in the context of two Alphatech research projects, and discuss several partial solutions. A recurring theme is the exploitation of space-efficient, factored representations of multiple hypotheses to en... View full abstract»

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  • Timekeeping at the US Naval Observatory

    Publication Year: 2003 , Page(s): 9 - 14
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (629 KB)  

    No one can stop time, but time can stop a system. Users need to be aware of the different flavors of time, depending upon their needs. Most systems require that all their components be on common time (synchrony), but they cannot keep them on time unless they are also on a common frequency (syntony). Other systems simply require syntony. The US Naval Observatory (USNO) is the timing reference for G... View full abstract»

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  • Commercial aviation VDL choices

    Publication Year: 2003 , Page(s): 15 - 20
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (456 KB)  

    The purpose of this study was to analyze digital data link communications technologies in a line-of-sight environment. Because there is a global debate over selecting the next generation VHF data link (VDL) technology, this paper evaluates each of them for the terminal and enroute airspace only. First, this study provides a historical review of the purpose of data link applications; second, how th... View full abstract»

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  • Information technology security using cryptography

    Publication Year: 2003 , Page(s): 21 - 24
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (330 KB) |  | HTML iconHTML  

    It is widely known that information technology applications should be secured. During the last years, special efforts have been applied to achieve a great level of security. These efforts have increased security in some aspects, such as cryptographic algorithms and authentication techniques, etc. But many other security holes have appeared in these applications, making the improvements achieved a ... View full abstract»

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  • Flight-critical distributed systems: design considerations [avionics]

    Publication Year: 2003 , Page(s): 30 - 36
    Cited by:  Papers (12)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (569 KB)  

    With the proliferation of so-called "smart" components and the availability of small, low-cost, and high-speed data networks, avionics that have traditionally been centralized are becoming distributed. A distributed approach offers many potential benefits, such as reduced development time and cost, simplified system installation, increased flexibility for system expansion or modifications, and gre... View full abstract»

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Aims & Scope

 IEEE Aerospace and Electronic Systems Magazine is a monthly magazine that publishes articles concerned with the various aspects of systems for space, air, ocean, or ground environments as well as news and information of interest to IEEE Aerospace and Electronic Systems Society members.

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Meet Our Editors

Editor-in-Chief
Teresa Pace, PhD EE
Chief Engineer SenTech
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