CA2029675A1 - Regenerateur de porteuse pour les communications mobiles par satellite - Google Patents
Regenerateur de porteuse pour les communications mobiles par satelliteInfo
- Publication number
- CA2029675A1 CA2029675A1 CA2029675A CA2029675A CA2029675A1 CA 2029675 A1 CA2029675 A1 CA 2029675A1 CA 2029675 A CA2029675 A CA 2029675A CA 2029675 A CA2029675 A CA 2029675A CA 2029675 A1 CA2029675 A1 CA 2029675A1
- Authority
- CA
- Canada
- Prior art keywords
- signal
- carrier signal
- recovered
- cross
- carrier
- 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.)
- Granted
Links
- 230000001172 regenerating effect Effects 0.000 title abstract 2
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
- H04L27/0014—Carrier regulation
- H04L2027/0044—Control loops for carrier regulation
- H04L2027/0063—Elements of loops
- H04L2027/0065—Frequency error detectors
-
- 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
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0044—Control loops for carrier regulation
- H04L2027/0071—Control of loops
- H04L2027/0073—Detection of synchronisation state
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1291320A JP2513331B2 (ja) | 1989-11-10 | 1989-11-10 | 搬送波再生器 |
JP291320/1989 | 1989-11-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2029675A1 true CA2029675A1 (fr) | 1991-05-11 |
CA2029675C CA2029675C (fr) | 1994-01-11 |
Family
ID=17767381
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002029675A Expired - Fee Related CA2029675C (fr) | 1989-11-10 | 1990-11-09 | Regenerateur de porteuse pour les communications mobiles par satellite |
Country Status (6)
Country | Link |
---|---|
US (1) | US5148451A (fr) |
EP (1) | EP0427283B1 (fr) |
JP (1) | JP2513331B2 (fr) |
AU (1) | AU627380B2 (fr) |
CA (1) | CA2029675C (fr) |
DE (1) | DE59009714T2 (fr) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0750411B1 (fr) * | 1991-07-30 | 2003-06-11 | Nec Corporation | Dispositif de détection d'un mot unique pour utilisation dans un démodulateur cohérant |
JP2812347B2 (ja) * | 1992-02-17 | 1998-10-22 | 日本電気株式会社 | 再同期復調装置 |
JP2922707B2 (ja) * | 1992-03-06 | 1999-07-26 | 三菱電機株式会社 | 自動周波数制御方式 |
SE500986C2 (sv) * | 1993-07-20 | 1994-10-17 | Telia Ab | Förfarande och anordning för synkronisering i digitalt transmissionssystem av typen OFDM |
JP2531118B2 (ja) * | 1993-12-02 | 1996-09-04 | 日本電気株式会社 | 自動周波数制御装置 |
US5692014A (en) * | 1995-02-03 | 1997-11-25 | Trw Inc. | Subsampled carrier recovery for high data rate demodulators |
GB2309866A (en) * | 1996-01-30 | 1997-08-06 | Sony Corp | Frequency error detection in mobile radio communications |
US5930687A (en) * | 1996-09-30 | 1999-07-27 | Usa Digital Radio Partners, L.P. | Apparatus and method for generating an AM-compatible digital broadcast waveform |
US5878089A (en) * | 1997-02-21 | 1999-03-02 | Usa Digital Radio Partners, L.P. | Coherent signal detector for AM-compatible digital audio broadcast waveform recovery |
US6128334A (en) * | 1997-02-21 | 2000-10-03 | Usa Digital Radio, Inc. | Receiver addressable AM compatible digital broadcast system |
SE9704497L (sv) * | 1997-12-03 | 1999-06-04 | Telia Ab | Förbättringar av, eller med avseende på, data scramblers |
CN1115030C (zh) * | 1997-12-17 | 2003-07-16 | 株式会社建伍 | 接收机接收信号绝对定相装置 |
WO1999031851A1 (fr) * | 1997-12-17 | 1999-06-24 | Kabushiki Kaisha Kenwood | Recepteur |
US6717993B1 (en) * | 1998-01-29 | 2004-04-06 | Kabushiki Kaisha Kenwood | Receiver |
KR100529150B1 (ko) | 1999-06-24 | 2005-11-16 | 매그나칩 반도체 유한회사 | 주파수 옵셋 및 위상 에러를 동시에 줄이는 반송파 주파수 복구 방법 및 장치 |
WO2004021616A1 (fr) * | 2002-08-28 | 2004-03-11 | Fujitsu Limited | Appareil de transmission/reception et procede de transmission/reception |
JP2005197968A (ja) * | 2004-01-06 | 2005-07-21 | Fujitsu Ltd | 信号処理回路並びに直交復調装置およびその誤差推定方法 |
DE102004047424A1 (de) * | 2004-09-28 | 2006-04-06 | Micronas Gmbh | Schaltung und Verfahren zur Trägerrückgewinnung |
DE102004048572A1 (de) * | 2004-10-04 | 2006-04-13 | Micronas Gmbh | Verfahren sowie Schaltungsanordnung zur Unterdrückung einer orthogonalen Störung |
DE102004054893A1 (de) * | 2004-11-12 | 2006-05-24 | Micronas Gmbh | Verfahren und Schaltungsanordnung zur Kanalfilterung analog oder digital modulierter TV-Signale |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5231126A (en) * | 1975-09-04 | 1977-03-09 | Res Inst Iron Steel Tohoku Univ | Preparation of high strength silicon carbide fibers |
FR2419614A1 (fr) * | 1978-03-10 | 1979-10-05 | Cit Alcatel | Circuit de recuperation de la porteuse d'un signal numerique synchrone transmis par modulation d'amplitude |
US4238739A (en) * | 1979-02-26 | 1980-12-09 | E-Systems, Inc. | Preset network for a phase lock loop |
JPS5738064A (en) * | 1980-08-19 | 1982-03-02 | Matsushita Graphic Commun Syst Inc | Video reader |
US4426712A (en) * | 1981-05-22 | 1984-01-17 | Massachusetts Institute Of Technology | Correlation system for global position receiver |
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 |
US4485477A (en) * | 1982-07-19 | 1984-11-27 | Rca Corporation | Fast frequency/code search |
US4538280A (en) * | 1983-05-05 | 1985-08-27 | E-Systems, Inc. | Coherent spread spectrum pseudonoise tracking loop |
JPS6116655A (ja) * | 1984-07-02 | 1986-01-24 | Fujitsu Ltd | モデムのトレ−ニング開始点検出方法 |
JPS61140260A (ja) * | 1984-12-12 | 1986-06-27 | Nec Corp | 搬送波再生回路 |
JPS61163763A (ja) * | 1985-01-14 | 1986-07-24 | Fujitsu Ltd | 搬送波再生方式 |
-
1989
- 1989-11-10 JP JP1291320A patent/JP2513331B2/ja not_active Expired - Lifetime
-
1990
- 1990-11-09 EP EP90121466A patent/EP0427283B1/fr not_active Expired - Lifetime
- 1990-11-09 DE DE59009714T patent/DE59009714T2/de not_active Expired - Fee Related
- 1990-11-09 US US07/612,087 patent/US5148451A/en not_active Expired - Fee Related
- 1990-11-09 CA CA002029675A patent/CA2029675C/fr not_active Expired - Fee Related
- 1990-11-12 AU AU66550/90A patent/AU627380B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
EP0427283A3 (en) | 1992-03-25 |
DE59009714D1 (de) | 1995-11-02 |
CA2029675C (fr) | 1994-01-11 |
EP0427283A2 (fr) | 1991-05-15 |
EP0427283B1 (fr) | 1995-09-27 |
JPH03153145A (ja) | 1991-07-01 |
JP2513331B2 (ja) | 1996-07-03 |
AU627380B2 (en) | 1992-08-20 |
US5148451A (en) | 1992-09-15 |
AU6655090A (en) | 1991-05-16 |
DE59009714T2 (de) | 1996-11-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |