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Aerospace and Electronic Systems Magazine, IEEE

Issue 2 • Date Feb. 1998

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Displaying Results 1 - 11 of 11
  • Transistor Celebrates Half Century Mark

    Publication Year: 1998 , Page(s): 13
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (118 KB)  

    First Page of the Article
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  • Radar '97 Edinburgh

    Publication Year: 1998 , Page(s): 14 - 15
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    Freely Available from IEEE
  • News from the International Carnahan Conference on Security Technology

    Publication Year: 1998 , Page(s): 21 - 22
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    Freely Available from IEEE
  • 57th AAI 1997 Frankfurt Automobile Show Hybrid Electric Vehicles on Display

    Publication Year: 1998 , Page(s): 36 - 38
    Cited by:  Papers (1)  |  Patents (1)
    Save to Project icon | Request Permissions | PDF file iconPDF (294 KB)  
    Freely Available from IEEE
  • System Engineering Management [Book Review]

    Publication Year: 1998 , Page(s): 46
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    Freely Available from IEEE
  • Battlefield awareness via synergistic SAR and MTI exploitation

    Publication Year: 1998 , Page(s): 39 - 43
    Cited by:  Papers (24)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (672 KB)  

    “Battlefield awareness” is critical to the success of future military operations. Existing and new sensor platforms will provide the necessary surveillance data; DARPA is developing the systems needed to turn the sensor data into meaningful information for the commanders. A central thrust of these efforts exploits the synergistic relationship between SAR and MTI radar. Used together, they offer comprehensive coverage of the battlefield View full abstract»

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  • Are intruder alarm systems effective as crime prevention measures?

    Publication Year: 1998 , Page(s): 8 - 15
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (332 KB)  

    Intruder alarm systems, IAS, are seen by many as an essential part of the United Kingdom's defence against the crime of burglary. IAS are intended either to deter the potential intruder or detect and give warning of an intruder directly or indirectly to the police. Unfortunately the false alarm rate, at over 90%, is so high that it leads to ineffectual use of police resources and calls into question the ability of IAS to perform effectively either as a deterrent or detector. To try and improve the situation the Police Forces in the UK have in conjunction with the alarm industry, over the past few years, implemented special measures in an attempt to reduce the number of false alarms and improve the effectiveness of the systems. However, from a study of available data on the deterrent effect of alarm systems, the national statistics for all alarm call types, the numbers of arrests arising from the calls, etc., this paper concludes that IAS on their own are not an effective police crime prevention measure. Thus a radical rethink of their use is required. The paper also suggests an alternative strategy which may improve the situation View full abstract»

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  • Characterizing wood by microwaves

    Publication Year: 1998 , Page(s): 34 - 35
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (252 KB)  

    Common properties of raw wood can be determined by measuring the microwave propagation in the media. Unlike early designs from the 1970s and 1980s, simple constructions with phase and attenuation recording are now possible, if optimal frequencies are selected. At K-band, most quality impairments can be detected from basic group delay measurements, e.g., knots or insect holes smaller than 5 mm are observable. Impairments can be detected from a non-parallel viewing direction View full abstract»

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  • Wind detection in a microcosm: Ship/aircraft environment sensors

    Publication Year: 1998 , Page(s): 26 - 33
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (804 KB)  

    One of the most demanding aspects of a Navy helicopter pilot's job is landing his aircraft on the flight deck of a pitching, rolling, heaving and yawing ship. The complex airwake velocity field associated with the ship and aircraft interface directly affects the pilot's ability to control the aircraft during takeoff, approach, hover, landing, and deck operations. Dynamic Interface (DI) testing is performed to define safe aircraft operational envelopes; however, not all conditions can be realized within the limited test period and asset/condition availability. In addition, exact wind conditions that affect the aircraft cannot be measured with existing wind sensors. These sensors measure wind in the ship's mast area which does not represent the wind flow field encountered by the aircraft. A means of non-intrusively measuring the appropriate wind data is required. This paper presents an overview of the unique aspects of the ship/aircraft interface, the overall naval DI environment and the sensor requirements for measuring this complex environment View full abstract»

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  • The realism of FAA reliability-safety requirements and alternatives

    Publication Year: 1998 , Page(s): 16 - 20
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (436 KB)  

    As avionic systems become more complex, realistic qualification requirements for the flight-critical systems becomes more important, but more difficult to define. Requirements developed to establish acceptable levels of performance must be verifiable if they are to have any meaning. This article shows that both the current FAA requirements of flight-critical systems and the FAA recommended methods for probabilistic assessment are flawed, and result in “required” safety assessments which are misleading. Alternatives are then explored View full abstract»

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  • Is information security an oxymoron?

    Publication Year: 1998 , Page(s): 6 - 7
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (188 KB)  

    Although weaknesses have been demonstrated in some security techniques (encryption, protocols, mobile code such as Java, etc.), current security technology is quite strong in many areas. Despite this, information security has proved difficult to achieve in large modern software systems. Many problems have been reported in which supposedly secure systems have been penetrated and, in some cases, significant damage done. One problem considered is a buffer-overrun attack. The idea called a ⟨wrapper⟩ which is a layer of software that logically surrounds a software artifact and enhances the functionality of the artifact in some way, is then discussed. Most proposals for the use of wrappers assume that their presence is transparent to the artifact being wrapped. In other words, the artifact sees its operating environment as unchanged and the artifact does not have to be modified in i order to permit it to be wrapped. Wrappers have been proposed as an approach to dealing with deficiencies in existing systems, deficiencies in security for example. The use of shells as a feasible solution to the problem of security is also considered View full abstract»

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Aims & Scope

The IEEE Aerospace and Electronic Systems Magazine publishes articles and tutorials concerned with the various aspects of systems for space, air, ocean, or ground environments.

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Teresa Pace, PhD EE
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