CA2502790A1 - Method of removing dc offset for a zif-based gsm radio receiver with digital frequency offset correction - Google Patents

Method of removing dc offset for a zif-based gsm radio receiver with digital frequency offset correction Download PDF

Info

Publication number
CA2502790A1
CA2502790A1 CA002502790A CA2502790A CA2502790A1 CA 2502790 A1 CA2502790 A1 CA 2502790A1 CA 002502790 A CA002502790 A CA 002502790A CA 2502790 A CA2502790 A CA 2502790A CA 2502790 A1 CA2502790 A1 CA 2502790A1
Authority
CA
Canada
Prior art keywords
offset
phase signal
digital
rotator
zif
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
CA002502790A
Other languages
English (en)
French (fr)
Inventor
Geoffrey Shippee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2502790A1 publication Critical patent/CA2502790A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/30—Circuits for homodyne or synchrodyne receivers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
    • H03D3/007—Demodulation of angle-, frequency- or phase- modulated oscillations by converting the oscillations into two quadrature related signals
    • H03D3/008—Compensating DC offsets
    • 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
    • H04L25/061—DC level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of DC offset
    • H04L25/062—Setting decision thresholds using feedforward techniques only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits

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)
  • Transceivers (AREA)
CA002502790A 2002-10-25 2003-10-27 Method of removing dc offset for a zif-based gsm radio receiver with digital frequency offset correction Abandoned CA2502790A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US42122302P 2002-10-25 2002-10-25
US60/421,223 2002-10-25
US10/454,395 US6999537B2 (en) 2002-10-25 2003-06-03 Method of removing DC offset for a ZIF-based GSM radio solution with digital frequency correlation
US10/454,395 2003-06-03
PCT/US2003/033911 WO2004038939A1 (en) 2002-10-25 2003-10-27 Method of removing dc offset for a zif-based gsm radio receiver with digital frequency offset correction

Publications (1)

Publication Number Publication Date
CA2502790A1 true CA2502790A1 (en) 2004-05-06

Family

ID=32110314

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002502790A Abandoned CA2502790A1 (en) 2002-10-25 2003-10-27 Method of removing dc offset for a zif-based gsm radio receiver with digital frequency offset correction

Country Status (7)

Country Link
US (1) US6999537B2 (https=)
EP (1) EP1554813A1 (https=)
JP (1) JP2006504368A (https=)
AU (1) AU2003284947A1 (https=)
CA (1) CA2502790A1 (https=)
RU (1) RU2359407C2 (https=)
WO (1) WO2004038939A1 (https=)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7068735B2 (en) * 2003-06-16 2006-06-27 Broadcom Corp. System and method to perform DC compensation on a radio frequency burst in a cellular wireless network
US7583765B2 (en) * 2005-04-26 2009-09-01 Skyworks Solutions, Inc. DC offset detection and cancellation in a receiver
US8036622B2 (en) * 2005-09-28 2011-10-11 Qualcomm, Incorporated DC offset cancellation circuit for a receiver
US7986929B2 (en) * 2006-12-08 2011-07-26 Silicon Laboratories Inc. Providing channel filtering in an automatic frequency control path
US7622987B1 (en) 2007-01-25 2009-11-24 Pmc-Sierra, Inc. Pattern-based DC offset correction
US11128501B2 (en) * 2007-07-30 2021-09-21 HuWoMobility, Inc. Method for fast convergence calibration of radio-frequency transceivers
US7929651B1 (en) * 2007-11-09 2011-04-19 Xilinx, Inc. Low phase noise recursive direct digital synthesis with automatic gain control gain stabilization
KR101462577B1 (ko) * 2007-11-21 2014-11-19 삼성전자주식회사 광대역 무선접속 통신시스템에서 디씨 오프셋 제거 장치 및방법
WO2013044513A1 (en) * 2011-09-30 2013-04-04 Motorola Solutions, Inc. Automatic frequency control methods and apparatus
WO2012167555A1 (zh) 2011-11-15 2012-12-13 华为技术有限公司 一种校正同相正交信号的方法和装置
US8938029B2 (en) * 2012-08-31 2015-01-20 Vixs Systems, Inc. DC removal from multicarrier signals
WO2016142424A1 (en) * 2015-03-09 2016-09-15 Sony Corporation Device and method for determining a dc component
CN105553545A (zh) * 2015-12-11 2016-05-04 中国航空工业集团公司西安航空计算技术研究所 一种fc数据采集记录仪记录条件控制策略
CN110879402B (zh) * 2019-11-28 2021-11-09 中国科学院国家空间科学中心 一种gnss干涉测高中消除直流分量的系统及方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA9510509B (en) * 1994-12-23 1996-05-30 Qualcomm Inc Dual-mode digital FM communication system
KR970002572A (ko) * 1995-06-17 1997-01-28 김광호 데이타 저장기기의 데이타 검출방법 및 장치
JP3907703B2 (ja) * 1996-09-06 2007-04-18 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 零ｉｆ受信器
JPH11284677A (ja) * 1998-03-27 1999-10-15 Nec Corp 復調器とこれを用いたディジタル無線通信システム
US6504884B1 (en) 1999-05-12 2003-01-07 Analog Devices, Inc. Method for correcting DC offsets in a receiver
DE19933266A1 (de) 1999-07-15 2000-11-02 Siemens Ag Vorrichtung zum Empfangen von Funksignalen
US6868128B1 (en) * 2000-07-05 2005-03-15 Rfmd Wpan, Inc. Method and apparatus for calibrating DC-offsets in a direct conversion receiver
ATE313166T1 (de) * 2000-10-30 2005-12-15 Texas Instruments Inc Vorrichtung zum ausgleichen des dc-offsets eines quadratur-demodulators , und verfahren dazu
EP1350332B1 (en) 2001-01-12 2017-11-29 Qualcomm Incorporated Direct conversion digital domain control
US7076225B2 (en) 2001-02-16 2006-07-11 Qualcomm Incorporated Variable gain selection in direct conversion receiver
JP3693963B2 (ja) * 2002-01-30 2005-09-14 三菱電機株式会社 デジタル復調回路
US7130359B2 (en) * 2002-03-12 2006-10-31 Motorola Inc. Self calibrating receive path correction system in a receiver

Also Published As

Publication number Publication date
JP2006504368A (ja) 2006-02-02
US20040082302A1 (en) 2004-04-29
AU2003284947A1 (en) 2004-05-13
RU2359407C2 (ru) 2009-06-20
WO2004038939A1 (en) 2004-05-06
EP1554813A1 (en) 2005-07-20
US6999537B2 (en) 2006-02-14
RU2005115571A (ru) 2005-11-10

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued
FZDE Discontinued

Effective date: 20121029