Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Sensorer i brownout
Swedish National Defence College.
2013 (Swedish)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesisAlternative title
Sensors in brownout (English)
Abstract [sv]

När en helikopter befinner sig i brownout saknar besättningen referenser till omvärlden vilket kan försämra det spatiala medvetandet. Om besättningen inte har koll på helikopterns position i luftrummet kan det leda till skador på både materiel och besättning i samband med landning. Denna rapport undersökte, på ett övergripande plan, vilka möjligheter sensorer inom det elektromagnetiska spektret hade att bidra med information till det spatiala medvetandet. Rapporten fann att sensorerna behöver vara anpassningsbara till följd av stoftmolnets vida varierande karaktäristik. Sensorerna hade möjlighet att generera en bild av landningsplatsen före brownout inträffar. Radar lämpade sig bäst till att uppdatera bilden när brownout inträffat då de elektrooptiska sensorerna kraftigt begränsas av stoftmolnet. Däremot genererade de elektrooptiska sensorerna en bild av omgivningen som motsvarade ögats tolkning av samma omgivning, något som en radar har svårare att göra.

Abstract [en]

When a helicopter is in brownout the crew looses references to the world outside which could decrease the spatial awareness. If the crew does not know the accurate position of the helicopter it can lead to damage on both equipment and crew when landing. This report examined, on a general level, how sensors within the electromagnetic spectrum could contribute with information to the spatial awareness. The report found that the sensors need to be adaptable due to the widely varying characteristics of the dustcloud. The sensors were able to generate an image of the landingsite prior to brownout. Radar was best suited to updating the image when brownout had occurred, whereas the electro-optical sensors are highly attenuated by the dust cloud. However, the electro-optical sensors generated an image of the environment corresponding to the eye's interpretation of the same surrounding, something that a radar has greater difficulty with accomplishing.

Place, publisher, year, edition, pages
2013. , 29 p.
Keyword [en]
Brownout, dust cloud, helicopter, sensor
Keyword [sv]
Brownout, stoftmoln, helikopter, sensor
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:fhs:diva-4024OAI: oai:DiVA.org:fhs-4024DiVA: diva2:632384
Subject / course
Militärteknik, självständigt arbete
Educational program
Officersprogrammet (OP)
Supervisors
Examiners
Available from: 2013-08-07 Created: 2013-06-24 Last updated: 2013-08-07Bibliographically approved

Open Access in DiVA

Sensorer i brownout(1432 kB)360 downloads
File information
File name FULLTEXT01.pdfFile size 1432 kBChecksum SHA-512
80b17eda78604efd720e57e2b425ae10c12f4fa85b45ff4fefd3e7e644cecb784d435c3d9eaf6c492d26ef31cc0808130df144cc4b3622d61cadf0f20923122b
Type fulltextMimetype application/pdf

By organisation
Swedish National Defence College
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 360 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 107 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf