NO985995L - FremgangsmÕte og anordning til bruk ved fase-modulerte signaler - Google Patents
FremgangsmÕte og anordning til bruk ved fase-modulerte signalerInfo
- Publication number
- NO985995L NO985995L NO985995A NO985995A NO985995L NO 985995 L NO985995 L NO 985995L NO 985995 A NO985995 A NO 985995A NO 985995 A NO985995 A NO 985995A NO 985995 L NO985995 L NO 985995L
- Authority
- NO
- Norway
- Prior art keywords
- phase
- segments
- deviation
- sequences
- modulated signals
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
-
- 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
- H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Fremgangsmåte og anordning for detektering av deviasjon, for bruk under overføring av et faseskiftmodulert informasjonsbærende signal mellom en sender og en mottaker. Deviasjonsdetektoren gjør bruk av tilstedeværelsen av faselineære segmenter, dvs. deler av sekvenser av faseendringer med fortløpende samme faseendring. Deviasjonsdetektoren ekstraherer segmenter som består av tre eller flere fortløpende faseendringer med fastslått samme faseendring. Identifisering av de utfiltrerte segmentene blir utført for å kunne slå fast hvilke nominelt faselineære sekvenser segmentene tilhører. Deretter er det mulig å beregne deviasjonen og eventuelt et korreksjonssignal.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9602563A SE506847C2 (sv) | 1996-06-28 | 1996-06-28 | Förfarande och anordning vid fasmodulerade signaler |
PCT/SE1997/001158 WO1998000906A1 (en) | 1996-06-28 | 1997-06-27 | Method and device for use with phase modulated signals |
Publications (2)
Publication Number | Publication Date |
---|---|
NO985995D0 NO985995D0 (no) | 1998-12-18 |
NO985995L true NO985995L (no) | 1999-02-25 |
Family
ID=20403201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO985995A NO985995L (no) | 1996-06-28 | 1998-12-18 | FremgangsmÕte og anordning til bruk ved fase-modulerte signaler |
Country Status (11)
Country | Link |
---|---|
US (1) | US6091789A (no) |
EP (1) | EP0940005B1 (no) |
JP (1) | JP3850887B2 (no) |
CN (1) | CN1111943C (no) |
AU (1) | AU3471197A (no) |
BR (1) | BR9710057A (no) |
CA (1) | CA2258349A1 (no) |
DE (1) | DE69711214T2 (no) |
NO (1) | NO985995L (no) |
SE (1) | SE506847C2 (no) |
WO (1) | WO1998000906A1 (no) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
US6301310B1 (en) * | 1998-12-14 | 2001-10-09 | Hughes Electronics Corporation | Efficient implementation for systems using CEOQPSK |
US6570941B1 (en) * | 1999-01-05 | 2003-05-27 | Matsushita Electric Industrial Co., Ltd. | Receiver and phase extraction circuit |
Family Cites Families (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1125016A (en) * | 1913-02-05 | 1915-01-12 | John B Acton | Multiple spring. |
US3906380A (en) * | 1974-04-16 | 1975-09-16 | Rixon | Phase demodulator with phase shifted reference carrier |
US4042884A (en) * | 1975-02-20 | 1977-08-16 | Rixon, Inc. | Phase demodulator with offset frequency reference oscillator |
US4071829A (en) * | 1976-11-09 | 1978-01-31 | Harris Corporation | Coherent phase detector using a frequency discriminator |
US4234957A (en) * | 1978-12-04 | 1980-11-18 | Gte Automatic Electric Laboratories Incorporated | Method and apparatus for generating timing phase error signals in PSK demodulators |
US4267591A (en) * | 1979-04-17 | 1981-05-12 | Cincinnati Electronics Corporation | QPSK Suppressed carrier with rotating reference phase |
US4311964A (en) * | 1979-09-21 | 1982-01-19 | Westinghouse Electric Corp. | Coherent phase shift keyed demodulator for power line communication systems |
US4379284A (en) * | 1979-09-21 | 1983-04-05 | Westinghouse Electric Corp. | Coherent phase shift keyed demodulator for power line communication systems |
US4594556A (en) * | 1983-07-22 | 1986-06-10 | Sharp Kabushiki Kaisha | Demodulation circuit from FM signals and demodulation system therefor |
US4555667A (en) * | 1983-09-26 | 1985-11-26 | Rixon, Inc. | Synchronous digital QPSK demodulator with carrier error correction |
US4613976A (en) * | 1984-05-02 | 1986-09-23 | British Columbia Telephone Company | Constant envelope offset QPSK modulator |
US4581749A (en) * | 1984-07-02 | 1986-04-08 | Motorola, Inc. | Data frequency modulator with deviation control |
US4712221A (en) * | 1986-08-29 | 1987-12-08 | International Business Machines Corporation | Carrier recovery of modulated signals |
US4932029A (en) * | 1987-07-24 | 1990-06-05 | Ant Nachrichtentechnik Gmbh | Method and apparatus for correcting errors in convolutional code signals |
GB2207582B (en) * | 1987-07-30 | 1991-04-24 | Stc Plc | Phase error correction and carrier recovery |
US4942592A (en) * | 1988-06-06 | 1990-07-17 | Motorola, Inc. | Synchronous receiver for minimum shift keying transmission |
US4896336A (en) * | 1988-08-29 | 1990-01-23 | Rockwell International Corporation | Differential phase-shift keying demodulator |
US4866395A (en) * | 1988-11-14 | 1989-09-12 | Gte Government Systems Corporation | Universal carrier recovery and data detection for digital communication systems |
FR2639497B1 (fr) * | 1988-11-21 | 1991-02-15 | France Etat | Demodulateur pour transmission numerique comportant un dispositif de correction automatique des defauts |
US5027352A (en) * | 1989-01-05 | 1991-06-25 | Motorola, Inc. | Receiver frequency offset bias circuit for TDM radios |
SE462942B (sv) * | 1989-01-26 | 1990-09-17 | Ericsson Telefon Ab L M | Saett och anordning foer snabb frekvensstyrning av en koherent radiomottagare |
JP2797668B2 (ja) * | 1989-07-17 | 1998-09-17 | 日本電気株式会社 | 直交検波方法および直交検波器 |
JP2542928B2 (ja) * | 1989-07-20 | 1996-10-09 | 三洋電機株式会社 | Fm変調器 |
US5053717A (en) * | 1989-10-05 | 1991-10-01 | Motorola, Inc. | FSK demodulator |
JPH03274844A (ja) * | 1990-03-24 | 1991-12-05 | Japan Radio Co Ltd | Psk変調信号の遅延検波回路 |
JP3101955B2 (ja) * | 1991-06-06 | 2000-10-23 | 松下電器産業株式会社 | ディジタル変調信号の復調装置 |
JP2771354B2 (ja) * | 1991-08-26 | 1998-07-02 | 日本電気株式会社 | 復調器 |
JPH05327803A (ja) * | 1992-05-15 | 1993-12-10 | Toshiba Corp | 4相psk復調装置 |
JPH05347643A (ja) * | 1992-06-12 | 1993-12-27 | Toshiba Corp | 位相比較器 |
JP2762852B2 (ja) * | 1992-07-30 | 1998-06-04 | 日本電気株式会社 | 周波数安定化回路 |
JP3360691B2 (ja) * | 1992-10-13 | 2002-12-24 | ソニー株式会社 | 検波回路 |
JPH06261086A (ja) * | 1993-03-08 | 1994-09-16 | Nippondenso Co Ltd | ディジタル携帯電話における復調装置 |
US5475705A (en) * | 1993-04-29 | 1995-12-12 | Ericsson Ge Mobile Communications Inc. | Demodulator for Manchester-coded FM signals |
CN1061489C (zh) * | 1993-06-04 | 2001-01-31 | Rca.汤姆森许可公司 | 直接变频调谐器 |
JP2643792B2 (ja) * | 1993-09-14 | 1997-08-20 | 日本電気株式会社 | 復調装置 |
JPH0787145A (ja) * | 1993-09-16 | 1995-03-31 | Toshiba Corp | Afc回路 |
US5568096A (en) * | 1995-04-19 | 1996-10-22 | Telefonaktiebolaget Lm Ericsson | Apparatus and method for using negative FM feedback in high quality oscillator devices |
SE504341C2 (sv) * | 1995-05-22 | 1997-01-20 | Ericsson Telefon Ab L M | Förfarande och anordning vid fasmodulerade signaler |
-
1996
- 1996-06-28 SE SE9602563A patent/SE506847C2/sv not_active IP Right Cessation
-
1997
- 1997-06-27 BR BR9710057A patent/BR9710057A/pt not_active IP Right Cessation
- 1997-06-27 AU AU34711/97A patent/AU3471197A/en not_active Abandoned
- 1997-06-27 CA CA002258349A patent/CA2258349A1/en not_active Abandoned
- 1997-06-27 CN CN97197419A patent/CN1111943C/zh not_active Expired - Lifetime
- 1997-06-27 DE DE69711214T patent/DE69711214T2/de not_active Expired - Lifetime
- 1997-06-27 US US08/884,383 patent/US6091789A/en not_active Expired - Lifetime
- 1997-06-27 EP EP97930957A patent/EP0940005B1/en not_active Expired - Lifetime
- 1997-06-27 JP JP50404698A patent/JP3850887B2/ja not_active Expired - Lifetime
- 1997-06-27 WO PCT/SE1997/001158 patent/WO1998000906A1/en active IP Right Grant
-
1998
- 1998-12-18 NO NO985995A patent/NO985995L/no unknown
Also Published As
Publication number | Publication date |
---|---|
US6091789A (en) | 2000-07-18 |
JP2000514261A (ja) | 2000-10-24 |
WO1998000906A1 (en) | 1998-01-08 |
CN1111943C (zh) | 2003-06-18 |
EP0940005B1 (en) | 2002-03-20 |
SE9602563L (sv) | 1997-12-29 |
SE506847C2 (sv) | 1998-02-16 |
JP3850887B2 (ja) | 2006-11-29 |
NO985995D0 (no) | 1998-12-18 |
DE69711214D1 (de) | 2002-04-25 |
DE69711214T2 (de) | 2002-11-07 |
BR9710057A (pt) | 1999-08-10 |
SE9602563D0 (sv) | 1996-06-28 |
AU3471197A (en) | 1998-01-21 |
EP0940005A1 (en) | 1999-09-08 |
CN1228884A (zh) | 1999-09-15 |
CA2258349A1 (en) | 1998-01-08 |
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