Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Blind mechanism for the joint estimation of frequency offset and phase offset for QAM modulated signals
KTH, Skolan för elektro- och systemteknik (EES), Signalbehandling.ORCID-id: 0000-0002-4265-9490
2010 (engelsk)Patent (Annet (populærvitenskap, debatt, mm))
Abstract [en]

A mechanism for jointly correcting carrier phase and carrier frequency errors in a demodulated signal. A computer system may receive samples of a baseband input signal (resulting from QAM demodulation). The computer system may compute values of a cost function J over a grid in a 2D angle-frequency space. A cost function value J(theta,omega) is computed for each point (theta,omega) in the grid by (a) applying a phase adjustment of angle theta and a frequency adjustment of frequency omega to the input signal; (b) performing one or more iterations of the K-means algorithm on the samples of the adjusted signal; (c) generated a sum on each K-means cluster; and (d) adding the sums. The point (thetae,omegae) in the 2D angle-frequency space that minimizes the cost function J serves an estimate for the carrier phase error and carrier frequency error.; The estimated errors may be used to correct the input signal.

sted, utgiver, år, opplag, sider
2010.
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-120151OAI: oai:DiVA.org:kth-120151DiVA, id: diva2:613713
Patent
US 8446974-B2 (2013-05-21)
Merknad

US8755470-B2 (2014-06-17)

Tilgjengelig fra: 2013-04-01 Laget: 2013-04-01 Sist oppdatert: 2022-06-24bibliografisk kontrollert

Open Access i DiVA

fulltext(335 kB)236 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 335 kBChecksum SHA-512
98408e7a59012f52dc2d6722ff4abb4bf07e0de49f5c7a073e57ed6938e6e233a8d942b7abb6ba947752de3bd9cbed0afc9cb4608a4a62112f27db78ba502e44
Type fulltextMimetype application/pdf

Andre lenker

Espacenet.com

Person

Yajnanarayana, Vijaya

Søk i DiVA

Av forfatter/redaktør
Yajnanarayana, Vijaya
Av organisasjonen

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 236 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

urn-nbn

Altmetric

urn-nbn
Totalt: 617 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf