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A methodology for the analysis of the interdiction os a primitive logistic system /Friel, John A. January 1971 (has links)
No description available.
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A broadband microwave limiting amplifierNeethling, M. (Marthinus) 12 1900 (has links)
Thesis (MScIng)--University of Stellenbosch, 2004. / ENGLISH ABSTRACT: Limiting amplifiers are employed in electronic warfare (EW) systems requiring a high measure of amplitude control. These
EW systems employ sensitive signal processing components that are unable to accept the full dynamic range of input
signals the system must face. The limiting amplifier, however, offers the unique capability of reducing the received signal
spectrum to a suitable dynamic range. A typical application of the limiting amplifier is in the instantaneous frequency
measurement (IFM) receiver where the limiting amplifier allows the receiver to accurately measure pulsed signals over a
wide input dynamic range
The aim of this study is the design and analysis of a broadband limiting amplifier. Focus is placed on the design of a socalled
backbone limiting amplifier (BLA) which forms an integral part of a proposed modular design approach for realizing
a design with improved input dynamic range. A designed BLA is discussed in this thesis while insight is given as to the
intricacies associated with its mechanism of operation. Over its 45 dB (- 40 to + 5 dBm) input dynamic range, the designed
2-18 GHz limiting amplifier offers a typical saturated output power of 7.5 dBm while harmonic suppression of better than
8.6 dBc is achieved.
The BLA design was based on an existing limiting amplifier design, the so-called baseline limiting amplifier, employing
alternating amplifiers and attenuators. Evaluation of the baseline limiting amplifier design allowed for formulation of a
design hypothesis for realizing the BLA design. Physical measurements on the BLA were then used to scrutinize and
validate the formulated design hypothesis.
The requirements for realizing the BLA design were the establishment of a thorough radio frequency (RF) amplifier design
capability, an understanding of the nonlinear phenomena associated with the RF amplifier and the utilization and control
thereof within the limiting amplifier. Different RF amplifier designs that were carried out are discussed in this thesis, while
it is shown how they were used to further investigate important design considerations for application in the BLA design.
The computer-aided design packages namely MultiMatch and Microwave Office (MWO) were successfully used in
realizing the desired broadband RF amplifier designs and the eventual BLA design. / AFRIKAANSE OPSOMMING: Beperker versterkers word gebruik in elektroniese oorlogvoering (EO) stelsels waar ’n redelike mate van amplitude beheer
noodsaaklik is. Sensitiewe seinverwerking komponente, wat nie die volle dinamiese bereik van intreeseine kan hanteer nie,
maak deel uit van hierdie EO stelsels. Die beperker versterker bied egter die unieke eienskap om die ontvangde seinspektra
te reduseer tot ’n gepaste dinamiese bereik. ’n Tipiese toepassing vir die beperker versterker is as deel van die oombliksfrekwensie-
meting ontvanger waar die beperker versterker die ontvanger toelaat om akkurate meting van gepulsde seine te
doen oor ’n wye intree dinamiese bereik.
Die doel van hierdie studie is die ontwerp en analise van ’n wye-band beperker versterker. Fokus word geplaas op die
ontwerp van ’n sogenaamde kruks beperker versterker wat ’n integrale deel uitmaak van ’n voorgestelde modulêre
ontwerpsbenadering, wat ten doel het om ’n verbeterde intree dinamiese bereik daar te stel. Oor die 45 dB (- 40 tot + 5
dBm) intree dinamiese bereik, bied die ontwerpte 2-18 GHz beperker versterker ’n tipiese versadigde uittreedrywing van
7.5 dBm terwyl harmonieke onderdrukking van beter as 8.6 dBc verkry is. Die ontwerp van hierdie komponent word in
hierdie tesis bespreek terwyl belangrike aspekte oor die werking daarvan uitgelig word.
Die ontwerp van die kruks beperker versterker is gebaseer op ’n bestaande beperker versterker ontwerp, of sogenaamde
basis ontwerp, wat gebruik maak van afwisselende versterkers en attenuators. Evaluering van die basis ontwerp het
toegelaat vir die formulering van 'n ontwerpshipotese om die kruks beperker versterker te realiseer. Fisiese metings op die
kruks beperker versterker is gebruik om die ontwerpshipotese krities te evalueer.
Om die kruks beperker versterker te realiseer moes die nodige RF versterker ontwerpsvaardigheid daargestel word, ’n
begrip vir die nie-liniêere verskynsels in die RF versterker en die gebruik en beheer daarvan in die beperker versterker
moes daargestel word. Verskeie RF versterkers wat ontwerp is word in hierdie tesis bespreek, terwyl getoon word hoe
hierdie ontwerpe gebruik is om belangrike ontwerpsaspekte te ondersoek wat uiteindelik toegepas is in die kruks beperker
versterker ontwerp. Die ontwerpspakkette naamlik MultiMatch en Microwave Office is suksesvol gebruik vir die realisering
van die nodige wye-band RF versterkers en die uiteindelike kruks beperker versterker ontwerp.
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Electronic Warfare (EW) historical perspectives and its relationship to Information Operations (IO)-considerations for TurkeyKucukozyigit, Ali Can. 09 1900 (has links)
The purpose of this thesis is the exploration of the relationship and interaction between Electronic Warfare (EW) and Information Operations (IO) core, supporting and related competencies. Understanding the definitions of information and its value, information superiority, and the decision making cycle provides the foundation for the thesis. Investigation of the historical transformation of EW from the U.S. Civil War to the First Gulf War, and also examining how the concept of IO has developed and evolved contributes to this study by helping to comprehend the modern day interaction between EW and each IO competency separately. This interaction is constructed upon the guidance and standards provided by the latest U.S. Joint Chiefs of Staff Publication Joint Publication 3-13 Information Operations. This study concludes that the relationship between EW and IO is increasingly interactive and consists of two aspects: limiting and interfering, and reinforcing and supporting. Also, the relationship between EW and each IO competency is not consistent between the core and supporting competencies. In addition to these conclusions, this study expresses some considerations for EW and IO applications with respect to the unique environment and requirements of the Turkish Republic.
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Assessment of the effects of refractive conditions on electronic warfare in central AmericaGaviria Maldonado, Mauricio. January 1990 (has links) (PDF)
Thesis (M.S. in Systems Engineering (Electronic Warfare))--Naval Postgraduate School, September 1990. / Thesis Advisor(s): Davidson, Kenneth L. Second Reader: Hershey, Scott H. "September 1990." Description based on title screen as viewed on December 29, 2009. Author(s) subject terms: Retractive conditions, prongation, Central America, radar, microwave. Includes bibliographical references (p. 60-61). Also available in print.
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Missions and mobility configurations for Red Horse /Ryburn, James T. January 1988 (has links)
Student report -- Air Command and Staff College, Air University, Maxwell AFB, AL, 1988. Submitted to the faculty in partial fulfillment of requirements for graduation; Sponsor, Col Robert J. Courter, Director, Force development, HQ/DED; Faculty advisor Lt Col Rober L. Peters, ACSC/3823 Stus / "Apr 1988" "Report number 88-2300"
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Shooting for the model :Holloway, Peter. Unknown Date (has links)
Thesis (MEngTestandEvaluation)--University of South Australia, 2001.
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Operator task analysis of a shipboard electronic warfare system /Dyess, Robert M., January 1992 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1992. / Vita. Abstract. Includes bibliographical references (leaves 79-82). Also available via the Internet.
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Electronic warfare self-protection of battlefield helicopters : a holistic view /Heikell, Johnny. January 2005 (has links) (PDF)
Thesis (Ph. D.)--Helsinki University of Technology, Applied Electronics Laboratory, 20-05. / Includes bibliographical references (p. 167-190). Also available online.
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"Reclaiming lost ground : the future of electronic warfare in the USAF" /Dobbs, William F. January 2008 (has links)
Thesis (M.S.)--School of Advanced Air and Space Studies, 2008. / "June 2008." Vita. Includes bibliographical references (p. 102-108). Also available via the Internet.
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Electronic warfare self-protection of battlefield helicopters : a holistic view /Heikell, Johnny. Unknown Date (has links) (PDF)
Thesis (Ph. D.)--Helsinki University of Technology, Applied Electronics Laboratory, 20-05. / Also available online.
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