NO995710L - Fremgangsmåte og apparat for deteksjon av modulasjon - Google Patents
Fremgangsmåte og apparat for deteksjon av modulasjonInfo
- Publication number
- NO995710L NO995710L NO995710A NO995710A NO995710L NO 995710 L NO995710 L NO 995710L NO 995710 A NO995710 A NO 995710A NO 995710 A NO995710 A NO 995710A NO 995710 L NO995710 L NO 995710L
- Authority
- NO
- Norway
- Prior art keywords
- constellation points
- error metrics
- reference constellation
- detecting modulation
- modulation
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0012—Modulated-carrier systems arrangements for identifying the type of modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L25/03178—Arrangements involving sequence estimation techniques
- H04L25/03203—Trellis search techniques
-
- 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
- H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
- H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
- H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
- H04L27/2078—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the phase change per symbol period is constrained
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03006—Arrangements for removing intersymbol interference
- H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
- H04L2025/03375—Passband transmission
- H04L2025/03401—PSK
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)
- Error Detection And Correction (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI980652A FI104774B (fi) | 1998-03-23 | 1998-03-23 | Menetelmä ja laitteisto modulaation ilmaisemiseksi |
PCT/FI1999/000218 WO1999049634A2 (en) | 1998-03-23 | 1999-03-22 | Modulation detection method and apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
NO995710D0 NO995710D0 (no) | 1999-11-22 |
NO995710L true NO995710L (no) | 2000-01-21 |
Family
ID=8551355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO995710A NO995710L (no) | 1998-03-23 | 1999-11-22 | Fremgangsmåte og apparat for deteksjon av modulasjon |
Country Status (9)
Country | Link |
---|---|
US (1) | US6353913B2 (fi) |
EP (1) | EP0983670A2 (fi) |
CN (1) | CN1307774A (fi) |
AU (1) | AU2839399A (fi) |
CA (1) | CA2289754A1 (fi) |
FI (1) | FI104774B (fi) |
NO (1) | NO995710L (fi) |
NZ (1) | NZ501101A (fi) |
WO (1) | WO1999049634A2 (fi) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI112739B (fi) | 1998-05-25 | 2003-12-31 | Nokia Corp | Menetelmä ja laitteisto häiritsevän signaalin havaitsemiseen radiovastaanottimessa |
US6674815B2 (en) * | 1999-06-16 | 2004-01-06 | Ericsson, Inc | Method for symbol-spaced estimation and/or tracking of a fractionally-spaced fading radio channel |
EP1223717B1 (en) | 2001-01-15 | 2006-08-02 | Lucent Technologies Inc. | Maximum likelihood detection method using a sequence estimation receiver |
EP1485991B1 (en) * | 2002-03-19 | 2015-11-11 | Thomson Licensing | Slicing algorithm for multi-level modulation equalizing schemes |
JP3691449B2 (ja) * | 2002-03-25 | 2005-09-07 | 三洋電機株式会社 | ダイバーシティ回路およびこの回路を備えるダイバーシティ受信装置 |
US7876856B2 (en) * | 2005-06-23 | 2011-01-25 | Texas Instrumentals Incorporated | Quadrature receiver with correction engine, coefficient controller and adaptation engine |
TWI329435B (en) * | 2006-09-13 | 2010-08-21 | Sunplus Technology Co Ltd | Channel estimation apparatus with an optimal search and method thereof |
DE102007053091A1 (de) | 2007-11-07 | 2009-05-14 | Rohde & Schwarz Gmbh & Co. Kg | Verfahren und Vorrichtung zur Decodierung von faltungscodierten Signalen |
CN101599772B (zh) * | 2008-06-04 | 2013-04-10 | 联发科技股份有限公司 | 解调信号的方法与装置 |
CN103297362B (zh) * | 2013-06-05 | 2016-08-31 | 上海高清数字科技产业有限公司 | 一种基于误差更新的信道估计***及方法 |
KR101741512B1 (ko) * | 2013-12-19 | 2017-05-31 | 한국해양과학기술원 | 패킷 통신용 수신기의 채널 등화 및 수신 데이터 결정 장치 및 방법 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4247944A (en) * | 1978-11-15 | 1981-01-27 | Ricoh Co., Ltd. | V.29 Constellation detection method and apparatus |
US4884272A (en) * | 1988-02-10 | 1989-11-28 | Mcconnell Peter R H | Maximum likelihood diversity receiver |
US4937841A (en) * | 1988-06-29 | 1990-06-26 | Bell Communications Research, Inc. | Method and circuitry for carrier recovery for time division multiple access radio systems |
US5594742A (en) * | 1990-12-20 | 1997-01-14 | Communications Satellite Corporation | Bidirectional trellis coding |
US5384810A (en) * | 1992-02-05 | 1995-01-24 | At&T Bell Laboratories | Modulo decoder |
US5315617A (en) * | 1992-05-29 | 1994-05-24 | General Electric Company | QAM encoding for high-definition television system |
US5588028A (en) * | 1993-02-02 | 1996-12-24 | U.S. Robotics | Simplified trellis decoder |
JP2792812B2 (ja) | 1993-07-02 | 1998-09-03 | 沖電気工業株式会社 | 最尤系列推定器 |
US5488635A (en) * | 1993-10-29 | 1996-01-30 | General Electric Company | Low complexity adaptive equalizer radio receiver employing reduced complexity branch metric calculation |
US5467374A (en) * | 1993-10-29 | 1995-11-14 | General Electric Company | Low complexity adaptive equalizer for U.S. digital cellular radio receivers |
US5592514A (en) | 1995-03-08 | 1997-01-07 | Lucent Technologies Inc. | Method of performing signal reconstruction at the receiving end of a communications system, such as for GSM |
FR2736231A1 (fr) * | 1995-06-28 | 1997-01-03 | Trt Telecom Radio Electr | Systeme de communication numerique comportant un recepteur dote d'un dispositif de recuperation de rythme |
GB2305827B (en) * | 1995-09-30 | 2000-01-19 | Motorola Ltd | Viterbi co-processor and method of operation therefor |
EP0786872A2 (en) | 1995-12-29 | 1997-07-30 | Lucent Technologies Inc. | Viterbi decoder with reduced metric computation |
US6141384A (en) * | 1997-02-14 | 2000-10-31 | Philips Electronics North America Corporation | Decoder for trellis encoded interleaved data stream and HDTV receiver including such a decoder |
US6005898A (en) * | 1997-03-12 | 1999-12-21 | Interdigital Technology Corporation | Multichannel viterbi decoder |
-
1998
- 1998-03-23 FI FI980652A patent/FI104774B/fi active
-
1999
- 1999-03-22 NZ NZ501101A patent/NZ501101A/xx unknown
- 1999-03-22 AU AU28393/99A patent/AU2839399A/en not_active Abandoned
- 1999-03-22 CN CN99800363.8A patent/CN1307774A/zh active Pending
- 1999-03-22 WO PCT/FI1999/000218 patent/WO1999049634A2/en active Application Filing
- 1999-03-22 EP EP99908994A patent/EP0983670A2/en not_active Withdrawn
- 1999-03-22 CA CA002289754A patent/CA2289754A1/en not_active Abandoned
- 1999-11-12 US US09/439,805 patent/US6353913B2/en not_active Expired - Lifetime
- 1999-11-22 NO NO995710A patent/NO995710L/no unknown
Also Published As
Publication number | Publication date |
---|---|
WO1999049634A2 (en) | 1999-09-30 |
AU2839399A (en) | 1999-10-18 |
CN1307774A (zh) | 2001-08-08 |
NZ501101A (en) | 2001-01-26 |
FI104774B (fi) | 2000-03-31 |
WO1999049634A3 (en) | 1999-11-11 |
US20020010896A1 (en) | 2002-01-24 |
NO995710D0 (no) | 1999-11-22 |
FI980652A0 (fi) | 1998-03-23 |
EP0983670A2 (en) | 2000-03-08 |
US6353913B2 (en) | 2002-03-05 |
FI980652A (fi) | 1999-09-24 |
CA2289754A1 (en) | 1999-09-30 |
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