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Aerospace and Electronic Systems Magazine, IEEE

Issue 6 • Date June 1999

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Displaying Results 1 - 8 of 8
  • New batteries at the 33rd IECEC

    Page(s): 11 - 14
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    Freely Available from IEEE
  • Low-cost technology for multimode radar

    Page(s): 23 - 27
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (392 KB)  

    A flexible test bed radar architecture is described which includes an integrated RF electronics package that can support multiple radar applications, including surveillance, fire control, target acquisition, and tracking. This type of architecture can significantly reduce the cost, power, size, and weight of electronics on future weapon delivery platforms. The Army Research Laboratory (ARL) is developing technology to support multimode radar requirements. These requirements include the detection and location of moving or stationary low radar cross section targets in heavy ground clutter and the classification and/or recognition of these targets. We address these requirements with commercial-off-the-shelf (COTS) products and the integration of several enabling technologies. The test bed radar includes a direct digital synthesizer (DDS) for frequency-diverse waveform generation, a flexible wideband transceiver for bandwidth extension and frequency translation, and an open architecture signal processor with embedded wideband analog-to-digital converters for real-time acquisition and processing. Efficient signal processing algorithms have been developed to demonstrate multimode radar capability. This paper discusses the various subassemblies, algorithm efficiency, and field experiment results View full abstract»

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  • VXIbus instruments: past, present and future

    Page(s): 35 - 37
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    After a brief introduction to the VXIbus specification which was designed to avoid obsolescence by being an open-architecture standard, some of the many events which have occurred in the last few years to make the VXIbus standard the main platform for test, measurement, and high-density data acquisition, are discussed View full abstract»

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  • Factory testing: reuse of design integration tests [in radar system development]

    Page(s): 29 - 33
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    The tests developed and used during the integration phase of a project are similar to the tests used during the factory production phase of a project. In order to reuse the integration tests in the factory, the test conditions, test equipment, and test procedures need to be identical. Reusing the integration tests for factory testing takes additional effort at the beginning of the project but is cost effective in the long run View full abstract»

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  • High-speed avionic optical fiber CDMA networks

    Page(s): 15 - 21
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    With applications of systems integration technology to advanced aircrafts, high-speed and high-capacity optical fiber communication networks should be employed to support airborne broadband communication services. To guarantee real-time multiuser communications over a network, the selection of medium-access schemes is critical for avionics applications. In this paper, we briefly discuss the issues on high-speed multiple-access techniques and their applicability. Then we focus on the design and operation aspects of avionic optical fiber code-division multiple access (CDMA) networks. Some practical considerations on implementing such a CDMA network are also addressed and further improvement is pointed out. It is shown that avionic optical fiber CDMA networks can find a use in real-time avionic sensor data distribution, data exchange, and computer interconnects View full abstract»

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  • Analysis and results of the 1995 Yuma ground penetration SAR measurements

    Page(s): 5 - 9
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    In July and October 1995, a large-scale airborne SAR experiment was conducted in the Yuma Proving Ground, Yuma, Arizona, to investigate ground penetration radar phenomenology and buried target detection. This paper describes the Yuma experiment and measurement results for many tactical, utility, and environmental targets deployed in the test View full abstract»

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  • Mobile military communications beyond 2000-systems engineering needed

    Page(s): 3 - 4
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    The performance of mobile military communications could be improved if the next generation equipment would be designed from the systems approach, not limited to any existing solutions. The capabilities of software and microprocessors should be utilized to enhance the primary functionality of the devices and a comprehensive study of antennas, wave propagation and mechanical aspects should be included View full abstract»

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  • Performance analysis of radar antenna systems

    Page(s): 38 - 42
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    If modern airborne radar systems are to function properly, the radar antenna radiation patterns must meet certain specifications. Until recently, most radar antennas were designed and tested in a clean antenna environment, i.e., there is no near field scattering from host structures or radome effects. However, these higher order effects are the matter of increasing concern with added performance demands in the ever-increasing jammer and clutter interference environments. We investigated the capabilities and limitations of currently available analysis techniques and computer codes for installed performance of airborne radar antenna systems. Then we developed an extended ray-optical technique that could predict total installed performance of airborne radar antenna systems, i.e., the near field scattering from aircraft structures and radome effects. The new analysis technique utilized a ray-tracing method in both airframe and radome simulation. Thus, it can efficiently predict the total installed performance of large radar antenna systems on an aircraft structure 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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