DK281790D0 - Fremgangsmaade og apparat til frekvensstyring for en digital radiomodtager - Google Patents

Fremgangsmaade og apparat til frekvensstyring for en digital radiomodtager

Info

Publication number
DK281790D0
DK281790D0 DK281790A DK281790A DK281790D0 DK 281790 D0 DK281790 D0 DK 281790D0 DK 281790 A DK281790 A DK 281790A DK 281790 A DK281790 A DK 281790A DK 281790 D0 DK281790 D0 DK 281790D0
Authority
DK
Denmark
Prior art keywords
control apparatus
frequency control
radio receiver
digital radio
digital
Prior art date
Application number
DK281790A
Other languages
English (en)
Other versions
DK281790A (da
Inventor
David E Borth
James F Kepler
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of DK281790D0 publication Critical patent/DK281790D0/da
Publication of DK281790A publication Critical patent/DK281790A/da

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/087—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using at least two phase detectors or a frequency and phase detector in the loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
    • 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
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2271—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals
    • H04L27/2273—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals associated with quadrature demodulation, e.g. Costas loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops
    • H04L2027/0057—Closed loops quadrature phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0063—Elements of loops
    • H04L2027/0065—Frequency error detectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Superheterodyne Receivers (AREA)
DK281790A 1989-03-31 1990-11-27 Fremgangsmaade og apparat til frekvensstyring for en digital radiomodtager DK281790A (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/331,557 US4887050A (en) 1989-03-31 1989-03-31 Frequency control apparatus and method for a digital radio receiver
PCT/US1990/000822 WO1990012457A1 (en) 1989-03-31 1990-02-20 Frequency control apparatus and method for a digital radio receiver

Publications (2)

Publication Number Publication Date
DK281790D0 true DK281790D0 (da) 1990-11-27
DK281790A DK281790A (da) 1990-11-27

Family

ID=23294456

Family Applications (2)

Application Number Title Priority Date Filing Date
DK90105506.1T DK0389974T3 (da) 1989-03-31 1990-03-23 Frekvensstyringsapparat og -fremgangsmåde til en digital radiomodtager
DK281790A DK281790A (da) 1989-03-31 1990-11-27 Fremgangsmaade og apparat til frekvensstyring for en digital radiomodtager

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DK90105506.1T DK0389974T3 (da) 1989-03-31 1990-03-23 Frekvensstyringsapparat og -fremgangsmåde til en digital radiomodtager

Country Status (15)

Country Link
US (1) US4887050A (da)
EP (1) EP0389974B1 (da)
JP (1) JP3275178B2 (da)
CN (1) CN1016034B (da)
AR (1) AR244924A1 (da)
AT (1) ATE154481T1 (da)
AU (1) AU5161190A (da)
CA (1) CA2009468C (da)
DE (1) DE69030892T2 (da)
DK (2) DK0389974T3 (da)
FI (1) FI905571A0 (da)
IE (1) IE62289B1 (da)
MX (1) MX167064B (da)
NO (1) NO905055D0 (da)
WO (1) WO1990012457A1 (da)

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DE4013384A1 (de) * 1990-04-26 1991-10-31 Philips Patentverwaltung Empfaenger mit einer anordnung zur frequenzablagenschaetzung
JP2679889B2 (ja) * 1990-07-19 1997-11-19 株式会社テック 無線通信装置及びその装置の受信制御方式
US5111162A (en) * 1991-05-03 1992-05-05 Motorola, Inc. Digital frequency synthesizer having AFC and modulation applied to frequency divider
DK168467B1 (da) * 1991-06-14 1994-03-28 Dancall Telecom As Fremgangsmåde og apparat til bestemmelse af frekvensafvigelse
SE517499C2 (sv) * 1991-08-01 2002-06-11 Ericsson Ge Mobile Communicat Förfarande för åtkomst av ett mobilradiolandsystem från en av ett antal mobilstationer
US5222144A (en) * 1991-10-28 1993-06-22 Ford Motor Company Digital quadrature radio receiver with two-step processing
US5291517A (en) * 1992-12-31 1994-03-01 Gte Government Systems Corporation Carrier freuency corrector for a DSSS communication system
JP3358183B2 (ja) * 1993-04-09 2002-12-16 ソニー株式会社 時分割多重送受信装置
JP2659060B2 (ja) * 1994-07-06 1997-09-30 日本電気株式会社 周波数誤差検出方法
US5557643A (en) * 1995-04-07 1996-09-17 Hughes Electronics Automatic frequency control system for GMSK-modulated signals
JP2755210B2 (ja) * 1995-04-11 1998-05-20 日本電気株式会社 周波数自動制御回路
CN1055495C (zh) * 1995-05-05 2000-08-16 何秀岭 婴儿胎脂清洗剂的制作方法
JPH09162936A (ja) * 1995-12-11 1997-06-20 Nec Corp 周波数オフセット補正機能付き通信装置
CN1049451C (zh) * 1996-01-18 2000-02-16 华南理工大学 一种高效机场跑道清洗剂的制备方法
JPH09219693A (ja) * 1996-02-09 1997-08-19 Mitsubishi Electric Corp デジタル放送受信機
US5745848A (en) * 1996-03-04 1998-04-28 Motorola, Inc. Method and apparatus for eliminating interference caused by spurious signals in a communication device
KR100193837B1 (ko) * 1996-08-24 1999-06-15 윤종용 시분할다윈접속 디지탈 이동통신 시스템의 주파수 교정 버스트 검출방법
FR2760926B1 (fr) * 1997-03-13 1999-04-16 Alsthom Cge Alcatel Dispositif de supression des sauts parasites de composante continue pour recepteur radio de type frequence intermediaire zero et procede de suppression correspondant
US6072841A (en) * 1997-07-01 2000-06-06 Hughes Electronics Corporation Block phase estimator for the coherent detection of non-differentially phase modulated data bursts on rician fading channels
EP0940958A1 (en) * 1998-03-03 1999-09-08 Sony International (Europe) GmbH Method and device for digitally demodulating a frequency modulated signal
FR2792794B1 (fr) * 1999-04-23 2002-10-31 Telediffusion Fse Procede de depliement d'un signal de phase, systeme de depliement de phase lineaire et dispositif de recuperation de porteuse
GB9912586D0 (en) * 1999-05-28 1999-07-28 Simoco Int Ltd Radio receivers
US6370205B1 (en) * 1999-07-02 2002-04-09 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for performing DC-offset compensation in a radio receiver
JP4123320B2 (ja) * 1999-09-17 2008-07-23 ソニー株式会社 受信機およびそのｉｃ
US8559559B2 (en) * 2002-06-20 2013-10-15 Qualcomm, Incorporated Method and apparatus for compensating DC offsets in communication systems
RU2005101209A (ru) * 2002-06-20 2005-08-27 Квэлкомм Инкорпорейтед (US) Смещения по постоянному току в системах связи
SG111094A1 (en) * 2002-12-05 2005-05-30 Oki Techno Ct Singapore Pte Digital receiver
JP4154591B2 (ja) * 2003-04-25 2008-09-24 日本電気株式会社 周波数オフセットの検出処理システム及びそれを用いた周波数オフセットの検出処理方法
DE10348846B4 (de) * 2003-10-21 2010-07-08 Infineon Technologies Ag Verfahren zur Schätzung eines Frequenzversatzes eines modulierten Bandpass-Signals
US7215724B2 (en) * 2003-11-12 2007-05-08 Benq Corporation Signal demodulation in a mobile receiver
EP1759224B1 (en) * 2004-06-24 2011-08-03 BAE Systems PLC Improvements relating to velocity extraction
CN101039125B (zh) * 2006-03-16 2013-03-13 湖北众友科技实业股份有限公司 用于td-scdma终端测试的频率偏差测量的方法和装置
US7593485B2 (en) * 2006-05-30 2009-09-22 Freescale Semiconductor, Inc. Wireless receiver for removing direct current offset component
US20080089401A1 (en) * 2006-10-16 2008-04-17 Pao-Jen Lai Signal Testing System
CN101162979B (zh) * 2007-09-21 2010-06-02 深圳市虹远通信有限责任公司 一种芯片的载频自动化校准方法
US8284704B2 (en) * 2007-09-28 2012-10-09 Broadcom Corporation Method and system for utilizing undersampling for crystal leakage cancellation
US9553565B2 (en) 2011-09-29 2017-01-24 Silicon Laboratories Inc. Automatic frequency compensation method and apparatus
US10148322B2 (en) * 2016-04-01 2018-12-04 Intel IP Corporation Demodulator of a wireless communication reader
CN107727928A (zh) * 2017-09-20 2018-02-23 戴承萍 一种数字信号鉴频器及其使用方法
US11464009B2 (en) 2020-03-05 2022-10-04 Rockwell Collins, Inc. Relays in structured ad hoc networks

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US4099125A (en) * 1976-06-23 1978-07-04 Motorola, Inc. Frequency error correction circuit
US4188582A (en) * 1978-04-10 1980-02-12 Motorola, Inc. Simulcast transmission system having phase-locked remote transmitters
US4286223A (en) * 1978-05-15 1981-08-25 E-Systems, Inc. Wideband digital frequency discriminator and phase and frequency detector
US4328587A (en) * 1979-02-19 1982-05-04 Kokusai Denshin Denwa Kabushiki Kaisha Phase slip detector and systems employing the detector
US4291269A (en) * 1979-06-28 1981-09-22 Rca Corporation System and method for frequency discrimination
US4348772A (en) * 1979-11-26 1982-09-07 Bell Telephone Laboratories, Incorporated Frequency stabilization circuit for a local oscillator
FR2525055A1 (fr) * 1982-04-09 1983-10-14 Trt Telecom Radio Electr Procede de correction de frequence de la porteuse locale dans le recepteur d'un systeme de transmission de donnees et recepteur utilisant ce procede
US4471328A (en) * 1982-05-14 1984-09-11 Motorola, Inc. Variable frequency reference source responsive to digital data
US4451930A (en) * 1982-08-02 1984-05-29 Motorola Inc. Phase-locked receiver with derived reference frequency
US4518922A (en) * 1983-01-17 1985-05-21 Harris Corporation Decision-directed, automatic frequency control technique for non-coherently demodulated M-ARY frequency shift keying
US4541118A (en) * 1983-12-22 1985-09-10 Motorola, Inc. SSB System with pilot coded squelch
US4583048A (en) * 1985-02-26 1986-04-15 Rca Corporation MSK digital demodulator for burst communications
US4797635A (en) * 1987-05-11 1989-01-10 The Boeing Company Tracking loop having nonlinear amplitude filter
FR2621188B1 (fr) * 1987-09-25 1989-12-29 Labo Electronique Physique Circuit de recuperation de l'onde porteuse de systemes de transmissions numeriques

Also Published As

Publication number Publication date
JPH02288447A (ja) 1990-11-28
DE69030892T2 (de) 1998-01-02
EP0389974B1 (en) 1997-06-11
US4887050A (en) 1989-12-12
JP3275178B2 (ja) 2002-04-15
IE62289B1 (en) 1995-01-25
AR244924A1 (es) 1993-11-30
AU5161190A (en) 1990-11-05
FI905571A0 (fi) 1990-11-09
IE900871L (en) 1990-09-30
WO1990012457A1 (en) 1990-10-18
CA2009468C (en) 1994-02-01
DK0389974T3 (da) 1997-12-29
CN1016034B (zh) 1992-03-25
CN1046074A (zh) 1990-10-10
NO905055L (no) 1990-11-22
MX167064B (es) 1993-03-01
DE69030892D1 (de) 1997-07-17
CA2009468A1 (en) 1990-09-30
EP0389974A1 (en) 1990-10-03
ATE154481T1 (de) 1997-06-15
NO905055D0 (no) 1990-11-22
DK281790A (da) 1990-11-27

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment