CA2025232A1 - Systeme de restitution de porteuse - Google Patents
Systeme de restitution de porteuseInfo
- Publication number
- CA2025232A1 CA2025232A1 CA2025232A CA2025232A CA2025232A1 CA 2025232 A1 CA2025232 A1 CA 2025232A1 CA 2025232 A CA2025232 A CA 2025232A CA 2025232 A CA2025232 A CA 2025232A CA 2025232 A1 CA2025232 A1 CA 2025232A1
- Authority
- CA
- Canada
- Prior art keywords
- phase
- carrier phase
- carrier
- estimator
- received signal
- 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
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
- H04L27/2275—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals
- H04L27/2276—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals using frequency multiplication or harmonic tracking
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23785589 | 1989-09-13 | ||
JP237855/1989 | 1989-09-13 | ||
JP28397189 | 1989-10-31 | ||
JP283971/1989 | 1989-10-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2025232A1 true CA2025232A1 (fr) | 1991-03-14 |
CA2025232C CA2025232C (fr) | 1993-06-29 |
Family
ID=26533406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002025232A Expired - Fee Related CA2025232C (fr) | 1989-09-13 | 1990-09-12 | Systeme de restitution de porteuse |
Country Status (4)
Country | Link |
---|---|
US (1) | US5049830A (fr) |
JP (1) | JPH082060B2 (fr) |
AU (1) | AU629502B2 (fr) |
CA (1) | CA2025232C (fr) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1244206B (it) * | 1990-12-19 | 1994-07-08 | Telettra Spa | Sistema e circuito per la stima della frequenza di portante di un segnale |
FR2672454B1 (fr) * | 1991-01-31 | 1994-10-07 | Alcatel Telspace | Procede de demodulation coherente pour modulation a deplacement de phase et dispositif de mise en óoeuvre de ce procede. |
US5289505A (en) * | 1991-12-13 | 1994-02-22 | Motorola, Inc. | Frequency translation apparatus and method |
US5422917A (en) * | 1993-01-04 | 1995-06-06 | Novatel Communications Ltd. | Frequency offset estimation using the phase rotation of channel estimates |
JPH06205062A (ja) * | 1993-01-08 | 1994-07-22 | Nec Corp | 遅延検波回路 |
JP3179267B2 (ja) * | 1993-01-19 | 2001-06-25 | 三菱電機株式会社 | フィルタ及びこのフィルタを用いたキャリア位相推定装置 |
US5361036A (en) * | 1993-08-12 | 1994-11-01 | Rockwell International Corporation | Complex digital demodulator employing Chebychev-approximation derived synthetic sinusoid generation |
JP2741336B2 (ja) * | 1993-11-26 | 1998-04-15 | エヌ・ティ・ティ移動通信網株式会社 | 帯域拡散信号受信機の周波数誤差補正装置 |
US5497400A (en) * | 1993-12-06 | 1996-03-05 | Motorola, Inc. | Decision feedback demodulator with phase and frequency estimation |
US5490148A (en) * | 1993-12-15 | 1996-02-06 | Motorola, Inc. | Bit error rate estimator |
US5436589A (en) * | 1994-01-31 | 1995-07-25 | Motorola, Inc. | Demodulator for frequency shift keyed signals |
KR100311965B1 (ko) * | 1994-03-07 | 2001-12-28 | 박종섭 | 동기검출장치및그방법 |
US5703597A (en) * | 1995-12-22 | 1997-12-30 | Alliedsignal, Inc. | Adaptive carrier phase lock loop in a GPS receiver |
US5930305A (en) * | 1996-02-23 | 1999-07-27 | Northern Telecom Limited | Signal demodulation and diversity combining in a communications system using orthogonal modulation |
US6067328A (en) * | 1996-12-12 | 2000-05-23 | Alliedsignal | High precision hardware carrier frequency and phase aiding in a GPS receiver |
US6055231A (en) * | 1997-03-12 | 2000-04-25 | Interdigital Technology Corporation | Continuously adjusted-bandwidth discrete-time phase-locked loop |
JP3185867B2 (ja) * | 1997-11-28 | 2001-07-11 | 日本電気株式会社 | 誤差検出方法および装置、信号復調方法および装置 |
JP3361995B2 (ja) * | 1998-07-03 | 2003-01-07 | 株式会社東芝 | 搬送波再生回路並びに搬送波再生方法 |
US7039130B2 (en) * | 2002-05-17 | 2006-05-02 | Samsung Electronics Co., Ltd. | RF receiver phase correction circuit using cordic and vector averaging functions and method of operation |
JP4306515B2 (ja) * | 2003-08-29 | 2009-08-05 | 株式会社デンソー | 同期検波方法及び装置 |
WO2006092641A1 (fr) * | 2005-03-01 | 2006-09-08 | Nokia Corporation | Acquisition d'un signal de liaison de retour sans fil soumis a une derive de frequence doppler |
US8401402B2 (en) * | 2009-03-10 | 2013-03-19 | Tyco Electronics Subsea Communications Llc | Detection of data in signals with data pattern dependent signal distortion |
US8306418B2 (en) * | 2009-03-10 | 2012-11-06 | Tyco Electronics Subsea Communications Llc | Data pattern dependent distortion compensation in a coherent optical signal receiver |
US8295713B2 (en) * | 2009-03-10 | 2012-10-23 | Tyco Electronics Subsea Communications Llc | Dual stage carrier phase estimation in a coherent optical signal receiver |
US8401400B2 (en) * | 2009-03-10 | 2013-03-19 | Tyco Electronics Subsea Communications Llc | Detection of data in signals with data pattern dependent signal distortion |
US8301037B2 (en) * | 2010-03-05 | 2012-10-30 | Alcatel Lucent | Iterative carrier-phase estimation and data recovery for coherent optical receivers |
US8971424B2 (en) * | 2010-05-31 | 2015-03-03 | Ceragon Networks Ltd. | Combining pilot-symbol-based phase estimation with data-symbol-based phase estimation |
US9112614B2 (en) * | 2012-03-02 | 2015-08-18 | Alcatel Lucent | Correction of a local-oscillator phase error in a coherent optical receiver |
US9077455B2 (en) | 2012-12-28 | 2015-07-07 | Alcatel Lucent | Optical receiver having a MIMO equalizer |
JP6295585B2 (ja) * | 2013-10-09 | 2018-03-20 | 富士通株式会社 | 光通信受信装置、及び、周波数オフセット補償方法 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4328587A (en) * | 1979-02-19 | 1982-05-04 | Kokusai Denshin Denwa Kabushiki Kaisha | Phase slip detector and systems employing the detector |
US4581586A (en) * | 1984-08-17 | 1986-04-08 | Ford Aerospace & Communications Corporation | Crosstalk reduction in unbalanced QPSK detectors |
-
1990
- 1990-09-11 JP JP2240691A patent/JPH082060B2/ja not_active Expired - Fee Related
- 1990-09-12 CA CA002025232A patent/CA2025232C/fr not_active Expired - Fee Related
- 1990-09-13 US US07/581,892 patent/US5049830A/en not_active Expired - Lifetime
- 1990-09-13 AU AU62502/90A patent/AU629502B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
AU6250290A (en) | 1991-03-21 |
CA2025232C (fr) | 1993-06-29 |
JPH082060B2 (ja) | 1996-01-10 |
JPH03205939A (ja) | 1991-09-09 |
US5049830A (en) | 1991-09-17 |
AU629502B2 (en) | 1992-10-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |