DE68908912D1 - Übertragungssystem mit MSK-Modulation und kohärenter differentieller Detektion. - Google Patents
Übertragungssystem mit MSK-Modulation und kohärenter differentieller Detektion.Info
- Publication number
- DE68908912D1 DE68908912D1 DE89400382T DE68908912T DE68908912D1 DE 68908912 D1 DE68908912 D1 DE 68908912D1 DE 89400382 T DE89400382 T DE 89400382T DE 68908912 T DE68908912 T DE 68908912T DE 68908912 D1 DE68908912 D1 DE 68908912D1
- Authority
- DE
- Germany
- Prior art keywords
- transmission system
- differential detection
- msk modulation
- coherent differential
- coherent
- 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 - Lifetime
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
- H04L27/20—Modulator circuits; Transmitter circuits
- H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
- H04L27/2007—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained
- H04L27/2014—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained in which the phase changes in a piecewise linear manner during each symbol period, e.g. minimum shift keying, fast frequency shift keying
-
- 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
- H04L27/2331—Demodulator circuits; Receiver circuits using non-coherent demodulation wherein the received signal is demodulated using one or more delayed versions of itself
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8802016A FR2627648B1 (fr) | 1988-02-19 | 1988-02-19 | Systeme de transmission a modulation msk et detection differentiellement coherente |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68908912D1 true DE68908912D1 (de) | 1993-10-14 |
DE68908912T2 DE68908912T2 (de) | 1994-03-24 |
Family
ID=9363438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE89400382T Expired - Lifetime DE68908912T2 (de) | 1988-02-19 | 1989-02-10 | Übertragungssystem mit MSK-Modulation und kohärenter differentieller Detektion. |
Country Status (4)
Country | Link |
---|---|
US (1) | US5048058A (de) |
EP (1) | EP0329537B1 (de) |
DE (1) | DE68908912T2 (de) |
FR (1) | FR2627648B1 (de) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR950003666B1 (ko) * | 1990-12-31 | 1995-04-17 | 삼성전자 주식회사 | 지엠에스케이신호복조방법 및 그 장치 |
US5117441A (en) * | 1991-02-25 | 1992-05-26 | Motorola, Inc. | Method and apparatus for real-time demodulation of a GMSK signal by a non-coherent receiver |
JP2795761B2 (ja) * | 1991-09-25 | 1998-09-10 | シャープ株式会社 | Msk信号復調回路 |
GB9312836D0 (en) * | 1993-06-22 | 1993-08-04 | Schlumberger Ind Ltd | Multipoint to point radiocommunications network |
US5386202A (en) * | 1993-11-03 | 1995-01-31 | Sicom, Inc. | Data communication modulation with managed intersymbol interference |
US5514998A (en) * | 1994-01-27 | 1996-05-07 | Hughes Aircraft Company | Method and system for demodulating GMSK signals in a cellular digital packet data system |
US5583890A (en) * | 1994-09-19 | 1996-12-10 | Motorola, Inc. | Error correction of MSK signals dependent on sample quality |
US5446423A (en) * | 1994-09-19 | 1995-08-29 | Motorola, Inc. | Digital single sideband modulator and method |
JP3508956B2 (ja) * | 1995-04-13 | 2004-03-22 | ソニー株式会社 | 周波数変調信号復調回路及び通信端末装置 |
US5748679A (en) * | 1995-04-28 | 1998-05-05 | Trw Inc. | Modulated clock MSK modulator for high data rate applications |
US5949832A (en) * | 1996-03-26 | 1999-09-07 | Sicom, Inc. | Digital receiver with tunable analog filter and method therefor |
US5721756A (en) * | 1996-03-26 | 1998-02-24 | Sicom, Inc. | Digital receiver with tunable analog parameters and method therefor |
JP2850876B2 (ja) * | 1996-09-03 | 1999-01-27 | 日本電気株式会社 | 変調方式 |
FI105750B (fi) | 1997-12-11 | 2000-09-29 | Nokia Networks Oy | Menetelmä ja järjestely signaalin moduloimiseksi |
US6694104B1 (en) * | 1998-03-04 | 2004-02-17 | Massachusetts Institute Of Technology | Variable-rate communication system with optimal filtering |
AU2214200A (en) | 1998-12-30 | 2000-07-24 | Futurewave, Inc. | Constant envelope modulation communication system |
JP2000332666A (ja) * | 1999-05-24 | 2000-11-30 | Toshiba Tec Corp | 無線通信システム |
DE19930229C1 (de) * | 1999-06-30 | 2001-07-05 | Infineon Technologies Ag | Quadricorrelator für einen Demodulator für frequenzmodulierte Signale |
US7471904B2 (en) * | 2003-07-25 | 2008-12-30 | Alcatel-Lucent Usa Inc. | Method and apparatus for electronic equalization in optical communication systems |
US7561634B2 (en) * | 2004-06-15 | 2009-07-14 | Harris Corporation | Continuous phase modulation system and method with added orthogonal signals |
US7539257B2 (en) * | 2004-11-05 | 2009-05-26 | Harris Corporation | Continuous phase modulation system and method with added phase pulse |
US7437080B2 (en) * | 2005-02-03 | 2008-10-14 | Stratalight Communications, Inc. | Optical transmission system having optimized filter wavelength offsets |
DE102005041455A1 (de) * | 2005-08-31 | 2007-03-15 | Abb Patent Gmbh | Automatisierungstechnische Einrichtung |
DE102005043479A1 (de) * | 2005-09-13 | 2007-03-15 | Abb Patent Gmbh | Automatisierungstechnische Einrichtung |
DE102005043482A1 (de) * | 2005-09-13 | 2007-03-15 | Abb Patent Gmbh | Automatisierungstechnische Einrichtung |
DE102005043485A1 (de) | 2005-09-13 | 2007-03-15 | Abb Patent Gmbh | Automatisierungstechnische Einrichtung |
DE102005043481A1 (de) * | 2005-09-13 | 2007-03-15 | Abb Patent Gmbh | Automatisierungstechnische Einrichtung |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1129180B (de) * | 1961-03-30 | 1962-05-10 | Telefunken Patent | Empfangseinrichtung fuer Impulsuebertragung durch quantisierte Phasenmodulation eines Traegers |
US3809817A (en) * | 1972-02-14 | 1974-05-07 | Avantek | Asynchronous quadriphase communications system and method |
JPS5625849A (en) * | 1979-08-10 | 1981-03-12 | Hitachi Ltd | Coding system |
US4324001A (en) * | 1980-08-15 | 1982-04-06 | Communications Satellite Corporation | Synchronizer for MSK burst communications |
US4547888A (en) * | 1982-07-28 | 1985-10-15 | Motorola, Inc. | Recursive adaptive equalizer for SMSK data links |
US4706261A (en) * | 1982-08-13 | 1987-11-10 | Hazeltine Corporation | Differential phase modulation |
FR2546011B1 (fr) * | 1983-05-09 | 1986-02-21 | Vallet Robert | Procede de demodulation non-coherente d'un signal module lineairement a energie par symbole constante et demodulateur pour la mise en oeuvre dudit procede |
JPS607251A (ja) * | 1983-06-27 | 1985-01-16 | Nec Corp | 差動符号化方式および装置 |
US4609907A (en) * | 1984-10-31 | 1986-09-02 | International Business Machines Corporation | Dual channel partial response system |
-
1988
- 1988-02-19 FR FR8802016A patent/FR2627648B1/fr not_active Expired - Fee Related
-
1989
- 1989-02-10 DE DE89400382T patent/DE68908912T2/de not_active Expired - Lifetime
- 1989-02-10 EP EP89400382A patent/EP0329537B1/de not_active Expired - Lifetime
- 1989-02-17 US US07/318,051 patent/US5048058A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5048058A (en) | 1991-09-10 |
FR2627648B1 (fr) | 1994-07-08 |
EP0329537B1 (de) | 1993-09-08 |
EP0329537A1 (de) | 1989-08-23 |
FR2627648A1 (fr) | 1989-08-25 |
DE68908912T2 (de) | 1994-03-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8330 | Complete renunciation |