By Topic

Aerospace Applications Conference, 1995. Proceedings., 1995 IEEE

Date 4-11 Feb. 1995

Go

Filter Results

Displaying Results 1 - 23 of 23
  • 1995 IEEE Aerospace Applications Conference. Proceedings

    Publication Year: 1995
    Request permission for commercial reuse | PDF file iconPDF (26 KB)
    Freely Available from IEEE
  • Electronic scanning parabolic-reflector excited by a cluster-feed array

    Publication Year: 1995, Page(s):249 - 257 vol.1
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    A dual-polarized, electronically scanned parabolic-reflector is described that tracks and receive telemetry data from two missiles simultaneously. Beam steering is accomplished by means of a prime focus cluster-feed that is programmed using phased array processing techniques. The feed provides variable beamwidth and beamshape. Missile tracking is accomplished by employing a unique algorithm that m... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The future of military space

    Publication Year: 1995, Page(s):3 - 14 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (128 KB)

    The author discusses future developments in military Space technology and its utilisation View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Advanced silicon communications controllers

    Publication Year: 1995, Page(s):303 - 317 vol.1
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (864 KB)

    Communications controllers are increasingly becoming highly sophisticated systems integrated on a single silicon chip. The level of on-chip integration coupled with both creative system support features has provided superb flexibility that allows the transport of multiple distinct protocols and power to connect to and process multiple wide band communication channels emanating from potentially div... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Health effects of exposure to electromagnetic fields

    Publication Year: 1995, Page(s):351 - 368 vol.1
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1168 KB)

    There are numerous sources of radio frequency and microwave fields to which people are exposed in the course of their work or everyday life. These fields provide the society with invaluable services such as communication, navigation, defense and many other benefits. At the same time electromagnetic fields are known to interact with the human body and under some circumstances may detrimentally affe... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A review of research and methods for producing high-consequence software

    Publication Year: 1995, Page(s):197 - 245 vol.1
    Cited by:  Papers (4)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3436 KB)

    The development of software for use in high-consequence systems mandates rigorous (formal) processes, methods, and techniques to improve the safety characteristics of those systems. This paper provides a brief overview of current research and practices in high-consequence software, including applied design methods. Some of the practices that are discussed include: fault tree analysis, failure mode... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Antennas for wireless communications

    Publication Year: 1995, Page(s):389 - 391 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (60 KB)

    Summary form only given. This objective of this presentation is to address issues related to antenna requirements for future wireless communications systems View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On reconfiguration latency in fault-tolerant system

    Publication Year: 1995, Page(s):287 - 301 vol.1
    Cited by:  Papers (4)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (712 KB)

    Digital computers embedded in critical applications such as flight controls should be equipped with appropriate fault-tolerance schemes to ensure their reliable and safe operation in the presence of component failures. System reconfiguration, which enhances reliability by dynamically using spatial redundancy, is generally the most time-consuming fault-/error- handling stage. The reconfiguration la... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Tool-based development of man-machine interfaces

    Publication Year: 1995, Page(s):343 - 349 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    The Northrop Grumman Advanced Human Engineering Tool (AHET) is a natural outgrowth of the original reconfigurable cockpit of 1987 and the Advanced Crewstation Integration Cockpit (ACIC) of 1992. The AHET was developed by the Business and Advanced Systems Development organization at Northrop Grumman B-2 Division in Pico Rivera, California. The AHET is actively used to support both research and full... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • UCLA's new bi-polar planar near-field antenna measurement facility

    Publication Year: 1995, Page(s):169 - 196 vol.1
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1508 KB)

    A novel customized bipolar planar near-field antenna measurement technique is presented. The bipolar near-field scanner incorporates an axially rotating test antenna and a rotating probe-carrying arm to sample the near-field on a data grid consisting of concentric circles and radial arcs. This technique offers a large scan plane size with reduced “real estate” requirements and a simple... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Investment protection for heritage systems

    Publication Year: 1995, Page(s):127 - 136 vol.1
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (680 KB)

    Asset management and cost reduction are two very important considerations for today's Information Technology (IT) practitioners. This paper gives a fresh insight into the true value of Heritage Information Technology systems. Articulating the current content, size and value of IT within an organization has rarely been attempted. Lip service is frequently given to “Investment Protection,&rdqu... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Antenna diversity technique for future space telemetry modulation scheme

    Publication Year: 1995, Page(s):259 - 273 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (680 KB)

    A full-spectrum combining (FSC) technique for future telemetry modulation schemes is described and its performance is analyzed assuming imperfect carrier and symbol synchronization. The combining system consists of a bank of phase-difference maximum likelihood estimators (MLEs) to align the signals before coherently maximal-ratio combining them and then demodulate the data with a single receiver c... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Reinventing Air Force Space

    Publication Year: 1995, Page(s):15 - 82 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4200 KB)

    The main objective of the US Reinventing Air Force Space Action Team was to define organizational responsibilities, programs, policies and funding profiles for providing an integrated, coherent program to solve the Air Force's most pressing Space mission needs. US Space management and operations are optimized on Cold War imperatives and outdated technical and industrial paradigms. The resultant &l... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Digital voice/data systems for commercial aircraft

    Publication Year: 1995, Page(s):319 - 331 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (916 KB)

    Designers of digital voice/data systems for commercial aircraft can make use of new, very-large-scale integrated (VLSI) chips to achieve new levels of functionality, within the bounds of existing weight and cost constraints. This paper considers several alternative architectures for such systems and presents a suggested approach using the latest in VLSI products. Specific communication protocols c... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Space system visualization and analysis using the Satellite Orbit Analysis Program (SOAP)

    Publication Year: 1995, Page(s):369 - 387 vol.1
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (948 KB)

    The Satellite Orbit Analysis Program (SOAP) is an interactive software system which employs 3D graphics animation to display the relative motion of satellites, airplanes, ships, and ground stations. Users may construct coordinate systems, sensor shapes, and wireframe spacecraft models. A variety of XY plots and data reports may also be generated. SOAP provides analysis, visualization, and simulati... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The future of public satellite communications

    Publication Year: 1995, Page(s):393 - 410 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (808 KB)

    In little more than two decades, communications satellite technology has gone from being revolutionary to commonplace, from an idea to world wide service. In both industrialized and developing countries, economic and social progress depends on improved telecommunications. Like other means of transport, telephones, computers, satellites and fiber optic cables and their proper interfaces are essenti... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The full cost of client/server computing

    Publication Year: 1995, Page(s):137 - 152 vol.1
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (836 KB)

    Client/server is a relatively new computer architecture that offers both promise and pitfalls. To accurately compare the costs of a proposed new client/server system with those of an old central mainframe system, it is necessary to identify and quantify the many component parts that were previously bundled into a single system price. A wide range of standards have made it possible for the work of ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Expanding horizons: where to invest your software bucks

    Publication Year: 1995, Page(s):275 - 286 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (580 KB)

    We all have budgets, we would all like to maximize that ephemeral quality called software productivity, and we all need to know where to put our dollars for maximum effect. The problem is that after wading through hundreds of articles promising to reveal the secret formula for revving up our development organizations, we still do not know. We discuss several areas such as programmer skill, definin... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Transmission and reception by antennas

    Publication Year: 1995, Page(s):83 - 97 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (792 KB)

    This tutorial describes the operation of transmitting and receiving antennas, including selected numerical field values. Only biconical antennas are both useful for technological applications and support an exact analytical electromagnetic solution, i.e., exact in the sense that no electromagnetic approximations are made, although approximations are necessary for numerical evaluation. A basic theo... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Enhanced angle resolution in scanning beam systems

    Publication Year: 1995, Page(s):333 - 341 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    The angular resolution of scanning systems can be improved by using equalizers to deconvolve the effect of the aperture on the input data. It was shown by Berenstein et al. (1990) that the deconvolution problem is inherently ill posed, but stable solutions can be obtained if two or more apertures, with a specified relationship, are employed. The paper presents a practical technique for designing t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Balancing performance and cost for cost-effective satellite systems design using an integrated cost engineering model

    Publication Year: 1995, Page(s):153 - 167 vol.1
    Cited by:  Papers (1)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (848 KB)

    The Early Warning Systems (EWS) application cost engineering model (CEM) described in this paper integrates the efforts of several engineering specialists and cost analysts into one process, allowing for concurrent design engineering and cost estimation. The cost engineering model (CEM) process facilitates the mapping of broader “what-if” design trades and narrower “if-what&rdquo... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Ku-band spot beam antenna for the Intelsat VIIA spacecraft

    Publication Year: 1995, Page(s):99 - 109 vol.1
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB)

    Intelsat VII is the seventh-generation telecommunication satellite designed to provide a global community of well over 100 nations with satellite communication capabilities. The three-axis, body-stabilized satellites will be positioned above the Atlantic, Pacific, or Indian Oceans, thus linking the adjacent continents via multiple antenna beams. A major modification to that satellite is termed Int... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Behavior of PCM/PM/BI-phase receivers in non-ideal channels

    Publication Year: 1995, Page(s):111 - 125 vol.1
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (628 KB)

    The performance of the residual carrier communication system that employs PCM/PM modulation technique with imperfect Bi-phase (or Bi-φ) data format and band-limited channels are investigated in this paper. Imperfect data stream consists of data imbalance and data asymmetry. Separate effects of data asymmetry, unbalanced data stream and InterSymbol Interference (ISI) caused by band-limited chan... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.