SE0601794L - Metod och anordning för detektering och uppskattning av kvadraturdefekter - Google Patents

Metod och anordning för detektering och uppskattning av kvadraturdefekter

Info

Publication number
SE0601794L
SE0601794L SE0601794A SE0601794A SE0601794L SE 0601794 L SE0601794 L SE 0601794L SE 0601794 A SE0601794 A SE 0601794A SE 0601794 A SE0601794 A SE 0601794A SE 0601794 L SE0601794 L SE 0601794L
Authority
SE
Sweden
Prior art keywords
quadrature
counter
signals
input
detecting
Prior art date
Application number
SE0601794A
Other languages
English (en)
Other versions
SE532400C2 (sv
Inventor
Sigurd Andre Lund
Anders Vahlin
Original Assignee
Nera Asa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nera Asa filed Critical Nera Asa
Priority to SE0601794A priority Critical patent/SE532400C2/sv
Priority to AT07115285T priority patent/ATE520237T1/de
Priority to EP07115285A priority patent/EP1895736B8/en
Publication of SE0601794L publication Critical patent/SE0601794L/sv
Publication of SE532400C2 publication Critical patent/SE532400C2/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/362—Modulation using more than one carrier, e.g. with quadrature carriers, separately amplitude modulated
    • H04L27/364—Arrangements for overcoming imperfections in the modulator, e.g. quadrature error or unbalanced I and Q levels
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0016—Stabilisation of local oscillators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0018—Arrangements at the transmitter end

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
SE0601794A 2006-08-30 2006-08-30 Metod och anordning för detektering och uppskattning av kvadraturdefekter SE532400C2 (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE0601794A SE532400C2 (sv) 2006-08-30 2006-08-30 Metod och anordning för detektering och uppskattning av kvadraturdefekter
AT07115285T ATE520237T1 (de) 2006-08-30 2007-08-30 Verfahren und vorrichtung zur erkennung und schätzung von quadraturfehlern
EP07115285A EP1895736B8 (en) 2006-08-30 2007-08-30 A method and a device for the detection and estimation of quadrature defects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0601794A SE532400C2 (sv) 2006-08-30 2006-08-30 Metod och anordning för detektering och uppskattning av kvadraturdefekter

Publications (2)

Publication Number Publication Date
SE0601794L true SE0601794L (sv) 2008-03-01
SE532400C2 SE532400C2 (sv) 2010-01-12

Family

ID=38922796

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0601794A SE532400C2 (sv) 2006-08-30 2006-08-30 Metod och anordning för detektering och uppskattning av kvadraturdefekter

Country Status (3)

Country Link
EP (1) EP1895736B8 (sv)
AT (1) ATE520237T1 (sv)
SE (1) SE532400C2 (sv)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2459354C1 (ru) * 2011-11-17 2012-08-20 Закрытое акционерное общество "Научно-производственная фирма "Микран" Способ оценки сдвига несущей частоты в восходящем канале для беспроводных телекоммуникационных систем

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6421398B1 (en) * 2000-01-28 2002-07-16 Alcatel Canada Inc. Modulation system having on-line IQ calibration
NO321303B1 (no) * 2003-08-20 2006-04-24 Nera Asa Adaptiv ubalansekorrigering i en kvadraturmodulator

Also Published As

Publication number Publication date
EP1895736A2 (en) 2008-03-05
ATE520237T1 (de) 2011-08-15
EP1895736B1 (en) 2011-08-10
EP1895736A3 (en) 2008-05-21
SE532400C2 (sv) 2010-01-12
EP1895736B8 (en) 2012-07-18

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Legal Events

Date Code Title Description
NUG Patent has lapsed