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Telekrig mot bandspridningsteknik
Swedish National Defence College.
2012 (Swedish)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesisAlternative title
Electronic Warfare against Spread-Spectrum technology (English)
Abstract [sv]

I denna uppsats betraktas två olika bandspridningstekniker och vilken påverkan de har på telekrigsförmågan. Uppsatsen svarar på frågan:

Vilka möjligheter finns att bedriva signalspaning och störning mot radiokommunikation som använder bandspridningsteknikerna frekvenshopp eller direktsekvens?

Inledningsvis beskrivs en modell för telekrig mot radiokommunikation, ”telekrigcykeln”. Därefter beskrivs principer för ett radiosystem samt de två bandspridningsteknikerna frekvenshopp och direktsekvens. Slutligen analyseras bandspridningsteknikernas påverkan med hjälp av telekrigcykeln och resultaten diskuteras.

Uppsatsen kommer fram till att båda signalerna går att spana mot, direktsekvens innebär större svårigheter för signalspaningen än frekvenshopp. Störning av båda signalerna görs bäst med störsändare som befinner sig nära radiomottagaren, dock är det svårt att placera störsändare nära motståndarens mottagare.

Abstract [en]

This essay examines two spread-spectrum technologies and what their effects are on the electronic warfare ability. The essay seeks to answer this question:

What are the possibilities for signals intelligence and communications jamming against radio communications using one of the two spread-spectrum technologies frequency-hopping and direct sequence?

The essay initially describes a model for how electronic warfare against radio communication is conducted, “telekrigcykeln”. It then describes the principles of a radio system as well as the two spread-spectrum technologies frequency-hopping and direct sequence. Using the model “telekrigcykeln” the essay finally analyses and discusses the impact of the spread-spectrum technologies.

The essay finds that it is possible to conduct signals intelligence towards both signals, however direct sequence pose bigger problems than frequency-hopping. Both signals are easiest to jam using a jammer in close proximity to the radio receiver. However, close-proximity jammers are harder to place close to the opponent’s receiver.

Place, publisher, year, edition, pages
2012. , 41 p.
Keyword [en]
electronic warfare, radio communication, spread-spectrum, frequency-hopping, direct sequence
Keyword [sv]
telekrig, radiokommunikation, bandspridning, frekvenshopp, direktsekvens
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:fhs:diva-2680OAI: oai:DiVA.org:fhs-2680DiVA: diva2:536106
Subject / course
Militärteknik, självständigt arbete
Educational program
Officersprogrammet (OP)
Uppsok
Technology
Supervisors
Examiners
Available from: 2012-07-19 Created: 2012-06-21 Last updated: 2012-07-19Bibliographically approved

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Alexander Andrén - Telekrig mot bandspridningsteknik(1453 kB)795 downloads
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CiteExportLink to record
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Citation style
  • apa
  • ieee
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  • Other locale
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Output format
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