WO2009008445A1 - 信号処理装置及び信号処理方法 - Google Patents

信号処理装置及び信号処理方法 Download PDF

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Publication number
WO2009008445A1
WO2009008445A1 PCT/JP2008/062396 JP2008062396W WO2009008445A1 WO 2009008445 A1 WO2009008445 A1 WO 2009008445A1 JP 2008062396 W JP2008062396 W JP 2008062396W WO 2009008445 A1 WO2009008445 A1 WO 2009008445A1
Authority
WO
WIPO (PCT)
Prior art keywords
test signal
signal
adjustment value
compensation value
modulator
Prior art date
Application number
PCT/JP2008/062396
Other languages
English (en)
French (fr)
Inventor
Kiyoshi Yanagisawa
Noriaki Matsuno
Original Assignee
Nec Corporation
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 Nec Corporation filed Critical Nec Corporation
Priority to CN200880024084.5A priority Critical patent/CN101743730B/zh
Priority to JP2009522656A priority patent/JP5365516B2/ja
Priority to US12/668,626 priority patent/US8285508B2/en
Publication of WO2009008445A1 publication Critical patent/WO2009008445A1/ja

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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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

　簡易な構成で、直流オフセットや比較器の誤差を抑圧し、ＩＱ信号の振幅と位相におけるミスマッチを高精度に補償する変調器（無線装置、変調方法）を提供する。 テスト信号を直交変調器に供給して生成される変調信号の包絡線検波を行い、さらにこの検波結果を比較判定した判定結果に基づき、制御部１４は調整値と補償値とを導出する。そして、導出された補償値に基づき、手段１７は直交変調器の直流オフセットやＩＱミスマッチを推定する。 前記テスト信号には、第１のテスト信号（Ｉ１、Ｑ１）と、該第１のテスト信号と所定の関係を有する第２のテスト信号（Ｉ２、Ｑ２）とからなる第１セットと、該第１セットと同相・直交成分が所定の関係を有する第２セットとがあり、前記制御部１４は、前記第１セットおよび前記第２セットに対応してそれぞれ導出される第１の調整値および第２の調整値に基づいて前記補償値を求めるものである。
PCT/JP2008/062396 2007-07-10 2008-07-09 信号処理装置及び信号処理方法 WO2009008445A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN200880024084.5A CN101743730B (zh) 2007-07-10 2008-07-09 信号处理装置和信号处理方法
JP2009522656A JP5365516B2 (ja) 2007-07-10 2008-07-09 信号処理装置及び信号処理方法
US12/668,626 US8285508B2 (en) 2007-07-10 2008-07-09 Signal processing apparatus and signal processing method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007181019 2007-07-10
JP2007-181019 2007-07-10

Publications (1)

Publication Number Publication Date
WO2009008445A1 true WO2009008445A1 (ja) 2009-01-15

Family

ID=40228616

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/062396 WO2009008445A1 (ja) 2007-07-10 2008-07-09 信号処理装置及び信号処理方法

Country Status (4)

Country Link
US (1) US8285508B2 (ja)
JP (1) JP5365516B2 (ja)
CN (1) CN101743730B (ja)
WO (1) WO2009008445A1 (ja)

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JP2010283589A (ja) * 2009-06-04 2010-12-16 Ricoh Co Ltd 通信装置
JP2013009307A (ja) * 2011-05-23 2013-01-10 Anritsu Corp 直交変調器及び信号発生装置並びに直交変調方法
WO2013145762A1 (ja) * 2012-03-28 2013-10-03 パナソニック株式会社 送信機、信号生成装置、キャリブレーション方法、及び信号生成方法
JP2013207575A (ja) * 2012-03-28 2013-10-07 Panasonic Corp 送信機、信号生成装置、及び信号生成方法
WO2014141723A1 (ja) * 2013-03-15 2014-09-18 パナソニック株式会社 送信装置
JP2016039482A (ja) * 2014-08-07 2016-03-22 新日本無線株式会社 Ｉｑミスマッチ補正方法および送受信装置
CN111781546A (zh) * 2020-04-20 2020-10-16 麦歌恩电子(上海)有限公司 消除两路相互正交信号非理想性的后台校准方法及***

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US8615205B2 (en) 2007-12-18 2013-12-24 Qualcomm Incorporated I-Q mismatch calibration and method
US8970272B2 (en) 2008-05-15 2015-03-03 Qualcomm Incorporated High-speed low-power latches
US8712357B2 (en) 2008-11-13 2014-04-29 Qualcomm Incorporated LO generation with deskewed input oscillator signal
US8718574B2 (en) * 2008-11-25 2014-05-06 Qualcomm Incorporated Duty cycle adjustment for a local oscillator signal
US8847638B2 (en) * 2009-07-02 2014-09-30 Qualcomm Incorporated High speed divide-by-two circuit
US8791740B2 (en) * 2009-07-16 2014-07-29 Qualcomm Incorporated Systems and methods for reducing average current consumption in a local oscillator path
US8805286B2 (en) * 2010-04-27 2014-08-12 Nec Corporation Wireless communication device, high-frequency circuit system, and local leak reduction method
CN102064928A (zh) * 2010-12-10 2011-05-18 福建星网锐捷网络有限公司 信号补偿参数获取方法、装置及网络设备
US8854098B2 (en) * 2011-01-21 2014-10-07 Qualcomm Incorporated System for I-Q phase mismatch detection and correction
TWI466506B (zh) * 2012-02-22 2014-12-21 Realtek Semiconductor Corp 用以補償傳送器／接收器中同相訊號與正交訊號不匹配的方法
US9154077B2 (en) 2012-04-12 2015-10-06 Qualcomm Incorporated Compact high frequency divider
US9444560B1 (en) * 2013-05-10 2016-09-13 Marvell International Ltd. Method and apparatus for IQ imbalance estimation
CN104348483B (zh) * 2013-08-06 2017-07-21 博通集成电路（上海）有限公司 校准电路及其方法
WO2015105600A1 (en) * 2014-01-13 2015-07-16 Clairvoyant Technology Llc Rf system using pr-ask with orthogonal offset
US9413394B1 (en) 2014-04-01 2016-08-09 Microsemi Storage Solutions (U.S.), Inc. Digital to-analog converter system and method
CN104300994B (zh) * 2014-10-24 2016-10-05 中国科学院嘉兴微电子与***工程中心 低中频接收机的i/q失配补偿电路
JP6436303B2 (ja) * 2015-03-24 2018-12-12 パナソニックＩｐマネジメント株式会社 無線通信装置及び故障判定方法
CN105471780B (zh) * 2015-12-08 2018-08-31 扬智科技股份有限公司 校正方法及校正电路
JP6494551B2 (ja) 2016-03-28 2019-04-03 アンリツ株式会社 電界強度分布測定装置及び電界強度分布測定方法
FR3055418B1 (fr) 2016-08-24 2018-09-14 Safran Aircraft Engines Procede de test integre du fonctionnement electrique de l'inversion de poussee d'un turboreacteur d'un aeronef, et systeme associe
TWI717864B (zh) * 2019-10-16 2021-02-01 國立交通大學 用於無線接收機之基頻系統及其基頻信號處理方法
CN110943748B (zh) * 2019-11-08 2022-04-12 芯原微电子(上海)股份有限公司 一种自动失配校准电路、射频接收机***及方法
KR20210141347A (ko) * 2020-05-15 2021-11-23 삼성전자주식회사 송신 iq 불일치 교정을 위한 방법 및 장치
US11431379B1 (en) * 2021-03-31 2022-08-30 Teradyne, Inc. Front-end module

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010283589A (ja) * 2009-06-04 2010-12-16 Ricoh Co Ltd 通信装置
JP2013009307A (ja) * 2011-05-23 2013-01-10 Anritsu Corp 直交変調器及び信号発生装置並びに直交変調方法
US8724735B2 (en) 2011-05-23 2014-05-13 Anritsu Corporation Quadrature modulator, signal generating device, and quadrature modulation method
WO2013145762A1 (ja) * 2012-03-28 2013-10-03 パナソニック株式会社 送信機、信号生成装置、キャリブレーション方法、及び信号生成方法
JP2013207575A (ja) * 2012-03-28 2013-10-07 Panasonic Corp 送信機、信号生成装置、及び信号生成方法
US9166707B2 (en) 2012-03-28 2015-10-20 Panasonic Corporation Transmitter, signal generation device, calibration method, and signal generation method
WO2014141723A1 (ja) * 2013-03-15 2014-09-18 パナソニック株式会社 送信装置
JP2014179900A (ja) * 2013-03-15 2014-09-25 Panasonic Corp 送信装置
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JP2016039482A (ja) * 2014-08-07 2016-03-22 新日本無線株式会社 Ｉｑミスマッチ補正方法および送受信装置
CN111781546A (zh) * 2020-04-20 2020-10-16 麦歌恩电子(上海)有限公司 消除两路相互正交信号非理想性的后台校准方法及***

Also Published As

Publication number Publication date
CN101743730A (zh) 2010-06-16
US20100198540A1 (en) 2010-08-05
JP5365516B2 (ja) 2013-12-11
US8285508B2 (en) 2012-10-09
CN101743730B (zh) 2014-02-12
JPWO2009008445A1 (ja) 2010-09-09

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