DE69225513T2 - Regelungssystem für Phasenfehler und Fehler verursacht durch Verstärkung in einem I/Q-Direktmischempfänger - Google Patents

Regelungssystem für Phasenfehler und Fehler verursacht durch Verstärkung in einem I/Q-Direktmischempfänger

Info

Publication number
DE69225513T2
DE69225513T2 DE69225513T DE69225513T DE69225513T2 DE 69225513 T2 DE69225513 T2 DE 69225513T2 DE 69225513 T DE69225513 T DE 69225513T DE 69225513 T DE69225513 T DE 69225513T DE 69225513 T2 DE69225513 T2 DE 69225513T2
Authority
DE
Germany
Prior art keywords
errors
amplification
control system
direct mix
phase
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.)
Expired - Fee Related
Application number
DE69225513T
Other languages
English (en)
Other versions
DE69225513D1 (de
Inventor
Roger K Loper
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.)
Boeing North American Inc
Original Assignee
Rockwell International Corp
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 Rockwell International Corp filed Critical Rockwell International Corp
Publication of DE69225513D1 publication Critical patent/DE69225513D1/de
Application granted granted Critical
Publication of DE69225513T2 publication Critical patent/DE69225513T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/22—Homodyne or synchrodyne circuits
    • H03D1/2245—Homodyne or synchrodyne circuits using two quadrature channels
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0001—Circuit elements of demodulators
    • H03D2200/0025—Gain control circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0001—Circuit elements of demodulators
    • H03D2200/0029—Loop circuits with controlled phase shift
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0041—Functional aspects of demodulators
    • H03D2200/005—Analog to digital conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
DE69225513T 1991-02-25 1992-02-25 Regelungssystem für Phasenfehler und Fehler verursacht durch Verstärkung in einem I/Q-Direktmischempfänger Expired - Fee Related DE69225513T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/660,492 US5249203A (en) 1991-02-25 1991-02-25 Phase and gain error control system for use in an i/q direct conversion receiver

Publications (2)

Publication Number Publication Date
DE69225513D1 DE69225513D1 (de) 1998-06-25
DE69225513T2 true DE69225513T2 (de) 1998-09-10

Family

ID=24649756

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69225513T Expired - Fee Related DE69225513T2 (de) 1991-02-25 1992-02-25 Regelungssystem für Phasenfehler und Fehler verursacht durch Verstärkung in einem I/Q-Direktmischempfänger

Country Status (4)

Country Link
US (1) US5249203A (de)
EP (1) EP0501740B1 (de)
JP (1) JPH0690261A (de)
DE (1) DE69225513T2 (de)

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* Cited by examiner, † Cited by third party
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DE102005034032A1 (de) * 2005-07-21 2007-02-01 Selex Sistemi Intergrati Gmbh Mehrkanaliger Hochfrequenz-Empfänger

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US5604929A (en) * 1995-04-21 1997-02-18 Rockwell International System for correcting quadrature gain and phase errors in a direct conversion single sideband receiver independent of the character of the modulated signal
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US5881376A (en) * 1995-12-15 1999-03-09 Telefonaktiebolaget Lm Ericsson Digital calibration of a transceiver
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US6041035A (en) * 1997-06-30 2000-03-21 Rockwell Collins, Inc. Open system modular electronics architecture
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FR2781948B1 (fr) * 1998-07-28 2001-02-09 St Microelectronics Sa Reception radiofrequence a conversion de frequence a basse frequence intermediaire
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US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
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US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
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US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
DE69834407T2 (de) * 1998-12-23 2007-04-19 Asulab S.A. Direktmischempfänger für FSK-modulierte Signale
CN100508508C (zh) * 1999-01-19 2009-07-01 交互数字技术公司 相移键控接收机中振幅和相位不平衡的校正方法及相应信号平衡器
US6377620B1 (en) * 1999-01-19 2002-04-23 Interdigital Technology Corporation Balancing amplitude and phase
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US6853690B1 (en) 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
EP1201029B1 (de) * 1999-05-24 2003-04-02 Level One Communications, Inc Automatische verstärkungsregelung und offsetkorrektur
US6535560B1 (en) * 1999-06-03 2003-03-18 Ditrans Corporation Coherent adaptive calibration system and method
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US6289048B1 (en) 2000-01-06 2001-09-11 Cubic Communications, Inc. Apparatus and method for improving dynamic range in a receiver
US6704349B1 (en) * 2000-01-18 2004-03-09 Ditrans Corporation Method and apparatus for canceling a transmit signal spectrum in a receiver bandwidth
US7088765B1 (en) * 2000-03-15 2006-08-08 Ndsu Research Foundation Vector calibration system
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US6671336B1 (en) 2000-05-16 2003-12-30 Motorola, Inc. Gain controller for circuit having in-phase and quadrature channels, and method
US6987815B2 (en) * 2000-06-23 2006-01-17 Ntt Docomo, Inc. Receive method and receiver in communication system
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US6683926B2 (en) 2000-12-18 2004-01-27 Motorola, Inc. Gain controller with comparator offset compensation for circuit having in-phase and quadrature channels
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
KR100475124B1 (ko) * 2003-01-15 2005-03-10 삼성전자주식회사 위상 및 이득 부정합 보상 기능을 가지는 직접 변환방식의 무선신호 수신 장치
US7187916B2 (en) 2003-02-07 2007-03-06 Broadcom Corporation Method and system for measuring receiver mixer IQ mismatch
ATE311629T1 (de) 2003-02-21 2005-12-15 Cit Alcatel Stufenloser, programmierbarer taktversatzkreis
US7412222B2 (en) * 2003-05-20 2008-08-12 Broadcom Corporation Quadrature correction method for analog television reception using direct-conversion tuners
US20060183451A1 (en) * 2003-06-06 2006-08-17 Interdigital Technology Corporation Method and system for continuously compensating for phase variations introduced into a communication signal by automatic gain control adjustments
US7330501B2 (en) * 2004-01-15 2008-02-12 Broadcom Corporation Orthogonal normalization for a radio frequency integrated circuit
JP5143341B2 (ja) * 2004-02-18 2013-02-13 株式会社アドバンテスト ジッタ測定装置、ジッタ測定方法およびプログラム
KR100544777B1 (ko) * 2004-04-07 2006-01-23 삼성탈레스 주식회사 Ｉ／ｑ 부정합 보상 방법 및 장치
US7272375B2 (en) 2004-06-30 2007-09-18 Silicon Laboratories Inc. Integrated low-IF terrestrial audio broadcast receiver and associated method
GB0723892D0 (en) * 2007-12-06 2008-01-16 Cambridge Silicon Radio Ltd Adaptive IQ alignment apparatus

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US5121072A (en) * 1990-11-27 1992-06-09 Rockwell International Corporation Digital demodulator for amplitude or angle modulation using truncated nonlinear power series approximations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005034032A1 (de) * 2005-07-21 2007-02-01 Selex Sistemi Intergrati Gmbh Mehrkanaliger Hochfrequenz-Empfänger

Also Published As

Publication number Publication date
DE69225513D1 (de) 1998-06-25
EP0501740B1 (de) 1998-05-20
EP0501740A2 (de) 1992-09-02
US5249203A (en) 1993-09-28
EP0501740A3 (en) 1993-03-03
JPH0690261A (ja) 1994-03-29

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee