DE69429938D1 - Einrichtung zur Beseitigung der Phasenunbestimmtheit - Google Patents
Einrichtung zur Beseitigung der PhasenunbestimmtheitInfo
- Publication number
- DE69429938D1 DE69429938D1 DE69429938T DE69429938T DE69429938D1 DE 69429938 D1 DE69429938 D1 DE 69429938D1 DE 69429938 T DE69429938 T DE 69429938T DE 69429938 T DE69429938 T DE 69429938T DE 69429938 D1 DE69429938 D1 DE 69429938D1
- Authority
- DE
- Germany
- Prior art keywords
- phase uncertainty
- eliminating phase
- eliminating
- uncertainty
- 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
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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5999693A JP2513116B2 (ja) | 1993-03-19 | 1993-03-19 | 位相曖昧度除去回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69429938D1 true DE69429938D1 (de) | 2002-04-04 |
DE69429938T2 DE69429938T2 (de) | 2002-06-27 |
Family
ID=13129294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69429938T Expired - Fee Related DE69429938T2 (de) | 1993-03-19 | 1994-03-18 | Einrichtung zur Beseitigung der Phasenunbestimmtheit |
Country Status (4)
Country | Link |
---|---|
US (1) | US5566184A (de) |
EP (1) | EP0618707B1 (de) |
JP (1) | JP2513116B2 (de) |
DE (1) | DE69429938T2 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5822339A (en) * | 1996-05-30 | 1998-10-13 | Rockwell International | Data decoder and method to correct inversions or phase ambiguity for M-ary transmitted data |
JP3115255B2 (ja) * | 1997-06-13 | 2000-12-04 | 株式会社ケンウッド | 絶対位相化回路 |
CA2293629C (en) | 1997-06-30 | 2006-06-06 | Kabushiki Kaisha Kenwood | Absolute-phasing synchronization capturing circuit |
BR0206906A (pt) * | 2001-12-03 | 2004-02-25 | Nokia Corp | Método e aparelho para recuperar a informação da árvore lógica do nó móvel |
JP5168111B2 (ja) * | 2008-11-28 | 2013-03-21 | 日本電気株式会社 | 位相不確定性除去機能を有する復調器およびそのキャリアスリップ補償方法 |
EP2819327B1 (de) * | 2013-06-28 | 2018-04-11 | Alcatel Lucent | Verfahren zur optischen Datenübertragung unter Verwendung von Polarisationsmultiplexing und QPSK |
CN111147415B (zh) * | 2019-12-23 | 2022-05-31 | 东方红卫星移动通信有限公司 | 一种低轨卫星mapsk通信系统的相位跟踪方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3736507A (en) * | 1971-08-19 | 1973-05-29 | Communications Satellite Co | Phase ambiguity resolution for four phase psk communications systems |
US4022973A (en) * | 1975-05-12 | 1977-05-10 | General Electric Company | Apparatus for indicating synchronization and out-of-synchronization conditions |
US4494239A (en) * | 1982-05-26 | 1985-01-15 | At&T Bell Laboratories | Frame synchronization and phase ambiguity resolution in QAM transmission systems |
JPS59134951A (ja) * | 1983-01-24 | 1984-08-02 | Fujitsu Ltd | 軟判定位相不確定除去方式 |
JPS60227544A (ja) * | 1984-04-25 | 1985-11-12 | Fujitsu Ltd | ユニ−クワ−ド検出装置 |
JPS62216557A (ja) * | 1986-03-18 | 1987-09-24 | Nec Corp | 位相▲あい▼▲まい▼度除去回路 |
JPS63120538A (ja) * | 1986-11-08 | 1988-05-24 | Nec Corp | タイミング再生回路 |
US5025455A (en) * | 1989-11-30 | 1991-06-18 | The United States Of America As Represented By The Administer, National Aeronautics And Space Administration | Phase ambiguity resolution for offset QPSK modulation systems |
JP2999220B2 (ja) * | 1990-05-16 | 2000-01-17 | 協和醗酵工業株式会社 | 粉末酒粕の製造法 |
-
1993
- 1993-03-19 JP JP5999693A patent/JP2513116B2/ja not_active Expired - Fee Related
-
1994
- 1994-03-18 DE DE69429938T patent/DE69429938T2/de not_active Expired - Fee Related
- 1994-03-18 EP EP94104330A patent/EP0618707B1/de not_active Expired - Lifetime
- 1994-03-21 US US08/215,480 patent/US5566184A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5566184A (en) | 1996-10-15 |
EP0618707B1 (de) | 2002-02-27 |
JPH06276239A (ja) | 1994-09-30 |
EP0618707A3 (en) | 1995-09-27 |
EP0618707A2 (de) | 1994-10-05 |
JP2513116B2 (ja) | 1996-07-03 |
DE69429938T2 (de) | 2002-06-27 |
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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 |