DE3361666D1 - Method of correcting the frequency of the local carrier in the receiver of a data transmission system, and receiver utilizing this method - Google Patents
Method of correcting the frequency of the local carrier in the receiver of a data transmission system, and receiver utilizing this methodInfo
- Publication number
- DE3361666D1 DE3361666D1 DE8383200461T DE3361666T DE3361666D1 DE 3361666 D1 DE3361666 D1 DE 3361666D1 DE 8383200461 T DE8383200461 T DE 8383200461T DE 3361666 T DE3361666 T DE 3361666T DE 3361666 D1 DE3361666 D1 DE 3361666D1
- Authority
- DE
- Germany
- Prior art keywords
- receiver
- correcting
- frequency
- data transmission
- transmission system
- 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
Links
Classifications
-
- 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
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
- H04L27/2332—Demodulator circuits; Receiver circuits using non-coherent demodulation using a non-coherent carrier
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0024—Carrier regulation at the receiver end
- H04L2027/0026—Correction of carrier offset
- H04L2027/003—Correction of carrier offset at baseband only
-
- 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
- H04L2027/0067—Phase error detectors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/04—Speed or phase control by synchronisation signals
- H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
- H04L7/042—Detectors therefor, e.g. correlators, state machines
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8206289A FR2525055A1 (fr) | 1982-04-09 | 1982-04-09 | Procede de correction de frequence de la porteuse locale dans le recepteur d'un systeme de transmission de donnees et recepteur utilisant ce procede |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3361666D1 true DE3361666D1 (en) | 1986-02-13 |
Family
ID=9272965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8383200461T Expired DE3361666D1 (en) | 1982-04-09 | 1983-03-31 | Method of correcting the frequency of the local carrier in the receiver of a data transmission system, and receiver utilizing this method |
Country Status (8)
Country | Link |
---|---|
US (1) | US4527278A (de) |
EP (1) | EP0091167B1 (de) |
JP (1) | JPH0638611B2 (de) |
AU (1) | AU556701B2 (de) |
CA (1) | CA1211794A (de) |
DE (1) | DE3361666D1 (de) |
FR (1) | FR2525055A1 (de) |
NO (1) | NO831221L (de) |
Families Citing this family (56)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4563650A (en) * | 1984-01-13 | 1986-01-07 | Westinghouse Electric Corp. | Power line communication receiver with dual threshold signal interrogation capability |
GB2153177B (en) * | 1984-01-19 | 1987-06-03 | Standard Telephones Cables Ltd | Digital navstar receiver |
GB2155268B (en) * | 1984-03-01 | 1987-08-26 | Standard Telephones Cables Ltd | Digital navstar receiver |
JPH0821962B2 (ja) * | 1984-03-02 | 1996-03-04 | 日本電信電話株式会社 | キヤリアトラツキング回路 |
US4599732A (en) * | 1984-04-17 | 1986-07-08 | Harris Corporation | Technique for acquiring timing and frequency synchronization for modem utilizing known (non-data) symbols as part of their normal transmitted data format |
GB2181907B (en) * | 1985-10-18 | 1989-10-11 | Stc Plc | Phase rotation of signals |
US4780887A (en) * | 1986-08-21 | 1988-10-25 | Nec Corporation | Carrier recovery circuitry immune to interburst frequency variations |
GB2203303B (en) * | 1987-03-31 | 1991-02-13 | Stc Plc | Radio frequency tracking loop |
GB2207582B (en) * | 1987-07-30 | 1991-04-24 | Stc Plc | Phase error correction and carrier recovery |
FR2633471B1 (fr) * | 1988-06-28 | 1990-10-05 | Trt Telecom Radio Electr | Procede de demodulation coherente d'un signal module numeriquement en phase continue et a enveloppe constante |
JP2632707B2 (ja) * | 1988-07-30 | 1997-07-23 | 三菱プレシジョン株式会社 | デモジュレーション装置 |
US5027352A (en) * | 1989-01-05 | 1991-06-25 | Motorola, Inc. | Receiver frequency offset bias circuit for TDM radios |
SE462943B (sv) * | 1989-01-26 | 1990-09-17 | Ericsson Telefon Ab L M | Saett och anordning foer frekvensstyrning av en koherent radiomottagare |
US5001727A (en) * | 1989-02-15 | 1991-03-19 | Terra Marine Engineering, Inc. | Carrier and data recovery and demodulation system |
US4887050A (en) * | 1989-03-31 | 1989-12-12 | Motorola, Inc. | Frequency control apparatus and method for a digital radio receiver |
US4943982A (en) * | 1989-05-01 | 1990-07-24 | Motorola, Inc. | Baseband carrier phase corrector |
FR2650456A1 (fr) * | 1989-07-28 | 1991-02-01 | Trt Telecom Radio Electr | Procede de synchronisation par correlation |
JP2513331B2 (ja) * | 1989-11-10 | 1996-07-03 | 日本電気株式会社 | 搬送波再生器 |
DE4013384A1 (de) * | 1990-04-26 | 1991-10-31 | Philips Patentverwaltung | Empfaenger mit einer anordnung zur frequenzablagenschaetzung |
FR2661792A1 (fr) * | 1990-05-04 | 1991-11-08 | Alcatel Radiotelephone | Dispositif d'evaluation d'ecart de frequence. |
US5241702A (en) * | 1990-09-06 | 1993-08-31 | Telefonaktiebolaget L M Ericsson | D.c. offset compensation in a radio receiver |
US5123033A (en) * | 1990-09-27 | 1992-06-16 | At&T Bell Laboratories | Extraction of an exact symbol rate as applied to bandwidth compression of modem signals through demodulation and remodulation |
US5297172A (en) * | 1991-04-11 | 1994-03-22 | Comsat Corporation | Method and apparatus for clock recovery for digitally implemented modem |
DE69216972T2 (de) * | 1991-09-30 | 1997-09-04 | Nec Corp | Phasenregelschaltung die schnell in einem synchronisierten Zustand gebracht werden kann |
JP3100447B2 (ja) * | 1992-01-10 | 2000-10-16 | 三菱電機株式会社 | 適応等化器および受信機 |
IT1259013B (it) * | 1992-07-27 | 1996-03-11 | Alcatel Italia | Sistema demodulatore completamente digitale per segnalazioni qam in collegamenti di piccola capacita' |
US5376894A (en) * | 1992-12-31 | 1994-12-27 | Pacific Communication Sciences, Inc. | Phase estimation and synchronization using a PSK demodulator |
JPH07212421A (ja) * | 1994-01-19 | 1995-08-11 | Toshiba Corp | Afc回路 |
DE69533246T2 (de) * | 1994-03-25 | 2005-08-25 | Samsung Electronics Co., Ltd., Suwon | Verfahren und Vorrichtung für automatische Frequenzregelung |
DE4423763C1 (de) * | 1994-06-28 | 1996-02-01 | Siemens Ag | Verfahren zum digitalen Bestimmen des Effektivwertes eines periodischen elektrischen Meßsignals |
JPH0951295A (ja) * | 1995-08-04 | 1997-02-18 | Matsushita Electric Ind Co Ltd | データ受信装置 |
US5909471A (en) * | 1997-08-08 | 1999-06-01 | Arraycomm, Inc. | Method and system for rapid initial control signal detection in a wireless communications system |
GB2344493A (en) * | 1998-09-12 | 2000-06-07 | Roke Manor Research | Automatic frequency correction |
GB2358116B (en) * | 1999-02-24 | 2002-11-06 | Nec Corp | Demodulation circuit and demodulation method with compensation for sampling offset |
JP3252820B2 (ja) * | 1999-02-24 | 2002-02-04 | 日本電気株式会社 | 復調及び変調回路並びに復調及び変調方法 |
US9020756B2 (en) * | 1999-04-23 | 2015-04-28 | Global Locate, Inc. | Method and apparatus for processing satellite positioning system signals |
US6704348B2 (en) | 2001-05-18 | 2004-03-09 | Global Locate, Inc. | Method and apparatus for computing signal correlation at multiple resolutions |
US6606346B2 (en) * | 2001-05-18 | 2003-08-12 | Global Locate, Inc. | Method and apparatus for computing signal correlation |
JP3486576B2 (ja) * | 1999-05-18 | 2004-01-13 | シャープ株式会社 | Ofdm受信装置及びその周波数オフセット補償方法 |
US6426982B1 (en) | 1999-09-17 | 2002-07-30 | Cadonca Design Systems, Inc. | Low complexity multiple bits matched filter |
US6532271B1 (en) | 1999-10-29 | 2003-03-11 | Cadence Design Systems, Inc. | Carrier recovery and doppler frequency estimation |
US6606363B1 (en) * | 1999-12-28 | 2003-08-12 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for estimating a frequency offset by combining pilot symbols and data symbols |
US7567636B2 (en) * | 2001-05-18 | 2009-07-28 | Global Locate, Inc. | Method and apparatus for performing signal correlation using historical correlation data |
US7769076B2 (en) | 2001-05-18 | 2010-08-03 | Broadcom Corporation | Method and apparatus for performing frequency synchronization |
US6819707B2 (en) | 2001-05-18 | 2004-11-16 | Global Locate, Inc. | Method and apparatus for performing signal correlation using historical correlation data |
US7006556B2 (en) * | 2001-05-18 | 2006-02-28 | Global Locate, Inc. | Method and apparatus for performing signal correlation at multiple resolutions to mitigate multipath interference |
US8098716B2 (en) * | 2001-05-18 | 2012-01-17 | Broadcom Corporation | Method and apparatus for providing an energy-based signal tracking loop |
US7995682B2 (en) * | 2001-05-18 | 2011-08-09 | Broadcom Corporation | Method and apparatus for performing signal processing using historical correlation data |
US6891880B2 (en) * | 2001-05-18 | 2005-05-10 | Global Locate, Inc. | Method and apparatus for performing signal correlation |
US7190712B2 (en) * | 2001-05-18 | 2007-03-13 | Global Locate, Inc | Method and apparatus for performing signal correlation |
WO2003045026A1 (fr) * | 2001-11-20 | 2003-05-30 | Sanyo Electric Co., Ltd. | Recepteur radio et procede et programme de commande de rythme de symboles |
US7443935B2 (en) * | 2002-11-02 | 2008-10-28 | Texas Instruments Incorporated | Apparatus and method for dynamically adjusting receiver bandwidth |
JP2005303928A (ja) * | 2004-04-15 | 2005-10-27 | Fujitsu Ltd | 分割加算式マッチトフィルタシステム |
DE102005019177B4 (de) * | 2005-04-25 | 2010-02-11 | Infineon Technologies Ag | Verfahren und Vorrichtung zur Frequenzschätzung bei der Akquistition eines Spreizcode-Signals |
US7630428B2 (en) * | 2005-07-28 | 2009-12-08 | Itt Manufacturing Enterprises, Inc. | Fast digital carrier frequency error estimation algorithm using synchronization sequence |
TW200803389A (en) * | 2006-06-20 | 2008-01-01 | Nxp Bv | Method and apparatus for estimating carrier frequency offset |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3447085A (en) * | 1965-01-04 | 1969-05-27 | Gen Dynamics Corp | Synchronization of receiver time base in plural frequency differential phase shift system |
US3971996A (en) * | 1973-01-18 | 1976-07-27 | Hycom Incorporated | Phase tracking network |
DE2358288A1 (de) * | 1973-11-22 | 1975-06-05 | Standard Elektrik Lorenz Ag | Empfaenger fuer frequenzmodulierte hf-signale |
US3962637A (en) * | 1974-11-11 | 1976-06-08 | Hycom Incorporated | Ultrafast adaptive digital modem |
DE2608258C2 (de) * | 1976-02-28 | 1984-04-05 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Einseitenband- oder Zweiseitenband- Nachrichtenübertragungsverfahren ohne Träger |
DE2657914C2 (de) * | 1976-12-21 | 1978-11-30 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Schaltungsanordnung zum Grobsynchronisieren von Trägersignalen und Taktsignalen mit Datensignalen in einem Datenempfänger |
US4328587A (en) * | 1979-02-19 | 1982-05-04 | Kokusai Denshin Denwa Kabushiki Kaisha | Phase slip detector and systems employing the detector |
DE2913172B2 (de) * | 1979-04-02 | 1981-06-11 | Siemens AG, 1000 Berlin und 8000 München | Empfänger für hochfrequente elektromagneitsche Schwingungen mit einer Frequenznachregelung |
-
1982
- 1982-04-09 FR FR8206289A patent/FR2525055A1/fr active Granted
-
1983
- 1983-03-31 EP EP83200461A patent/EP0091167B1/de not_active Expired
- 1983-03-31 DE DE8383200461T patent/DE3361666D1/de not_active Expired
- 1983-04-06 AU AU13173/83A patent/AU556701B2/en not_active Ceased
- 1983-04-06 NO NO831221A patent/NO831221L/no unknown
- 1983-04-06 CA CA000425288A patent/CA1211794A/en not_active Expired
- 1983-04-07 US US06/483,085 patent/US4527278A/en not_active Expired - Lifetime
- 1983-04-09 JP JP58061574A patent/JPH0638611B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
AU1317383A (en) | 1983-10-13 |
NO831221L (no) | 1983-10-10 |
EP0091167A1 (de) | 1983-10-12 |
EP0091167B1 (de) | 1986-01-02 |
FR2525055B1 (de) | 1984-05-04 |
CA1211794A (en) | 1986-09-23 |
US4527278A (en) | 1985-07-02 |
JPH0638611B2 (ja) | 1994-05-18 |
JPS58187046A (ja) | 1983-11-01 |
AU556701B2 (en) | 1986-11-13 |
FR2525055A1 (fr) | 1983-10-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL |
|
8339 | Ceased/non-payment of the annual fee |