NO163120C - Fremgangsmaate ved demodulasjon i digitale kommunikasjonssystemer med flerbane-propagasjon. - Google Patents

Fremgangsmaate ved demodulasjon i digitale kommunikasjonssystemer med flerbane-propagasjon.

Info

Publication number
NO163120C
NO163120C NO872093A NO872093A NO163120C NO 163120 C NO163120 C NO 163120C NO 872093 A NO872093 A NO 872093A NO 872093 A NO872093 A NO 872093A NO 163120 C NO163120 C NO 163120C
Authority
NO
Norway
Prior art keywords
demodulation
procedure
communication systems
digital communication
multiple propagation
Prior art date
Application number
NO872093A
Other languages
English (en)
Other versions
NO163120B (no
NO872093D0 (no
NO872093L (no
Inventor
Torleiv Maseng
Odd Trandem
Original Assignee
Sintef
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sintef filed Critical Sintef
Priority to NO872093A priority Critical patent/NO163120C/no
Publication of NO872093D0 publication Critical patent/NO872093D0/no
Priority to PCT/NO1988/000040 priority patent/WO1988009591A1/en
Priority to US07/299,937 priority patent/US5029186A/en
Priority to EP88904674A priority patent/EP0318538A1/en
Publication of NO872093L publication Critical patent/NO872093L/no
Publication of NO163120B publication Critical patent/NO163120B/no
Publication of NO163120C publication Critical patent/NO163120C/no

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
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
    • H04L27/2338—Demodulator circuits; Receiver circuits using non-coherent demodulation using sampling
NO872093A 1987-05-19 1987-05-19 Fremgangsmaate ved demodulasjon i digitale kommunikasjonssystemer med flerbane-propagasjon. NO163120C (no)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NO872093A NO163120C (no) 1987-05-19 1987-05-19 Fremgangsmaate ved demodulasjon i digitale kommunikasjonssystemer med flerbane-propagasjon.
PCT/NO1988/000040 WO1988009591A1 (en) 1987-05-19 1988-05-11 Method of demodulation in digital communication systems with multipath propagation
US07/299,937 US5029186A (en) 1987-05-19 1988-05-11 Method of demodulation in digital communication systems with multipath propagation
EP88904674A EP0318538A1 (en) 1987-05-19 1988-05-11 Method of demodulation in digital communication systems with multipath propagation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO872093A NO163120C (no) 1987-05-19 1987-05-19 Fremgangsmaate ved demodulasjon i digitale kommunikasjonssystemer med flerbane-propagasjon.

Publications (4)

Publication Number Publication Date
NO872093D0 NO872093D0 (no) 1987-05-19
NO872093L NO872093L (no) 1988-11-21
NO163120B NO163120B (no) 1989-12-27
NO163120C true NO163120C (no) 1990-04-04

Family

ID=19889952

Family Applications (1)

Application Number Title Priority Date Filing Date
NO872093A NO163120C (no) 1987-05-19 1987-05-19 Fremgangsmaate ved demodulasjon i digitale kommunikasjonssystemer med flerbane-propagasjon.

Country Status (4)

Country Link
US (1) US5029186A (no)
EP (1) EP0318538A1 (no)
NO (1) NO163120C (no)
WO (1) WO1988009591A1 (no)

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GB2215567B (en) * 1988-03-05 1992-11-18 Plessey Co Plc Improvements in or relating to equalisers
SE462942B (sv) * 1989-01-26 1990-09-17 Ericsson Telefon Ab L M Saett och anordning foer snabb frekvensstyrning av en koherent radiomottagare
US5228057A (en) * 1989-11-15 1993-07-13 Telefonaktiebolaget L M Ericsson Method of determining sampling time points
SE465597B (sv) * 1990-02-16 1991-09-30 Ericsson Telefon Ab L M Foerfarande att reducera inverkan av faedning hos en viterbimottagare med minst tvaa antenner
JPH03258147A (ja) * 1990-03-08 1991-11-18 Matsushita Electric Ind Co Ltd 非同期直交復調器
GB9008613D0 (en) * 1990-04-17 1990-06-13 Marconi Gec Ltd Reducing interference in r.f.signals
US5272726A (en) * 1990-07-31 1993-12-21 Nec Corporation Blind type sequence estimator for use in communications system
JP2668455B2 (ja) * 1990-12-20 1997-10-27 富士通株式会社 ビタビ復調制御方式
US5142551A (en) * 1991-02-28 1992-08-25 Motorola, Inc. Signal weighting system for digital receiver
US5151926A (en) * 1991-05-21 1992-09-29 General Electric Company Sample timing and carrier frequency estimation circuit for sine-cosine detectors
US5263026A (en) * 1991-06-27 1993-11-16 Hughes Aircraft Company Maximum likelihood sequence estimation based equalization within a mobile digital cellular receiver
GB2258123B (en) * 1991-07-20 1994-12-07 Northern Telecom Ltd Signal processor
JP3310671B2 (ja) * 1991-10-21 2002-08-05 モトローラ・インコーポレーテッド ビータビイコライザにおける状態遷移メトリックを計算するためのシステムおよび方法
DE4135953A1 (de) * 1991-10-31 1993-05-06 Rohde & Schwarz Gmbh & Co Kg, 8000 Muenchen, De Verfahren zum bestimmen der komplexen impulsantwort eines funkkanals
US5452331A (en) * 1992-08-14 1995-09-19 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Symbol lock detection implemented with nonoverlapping integration intervals
US5406585A (en) * 1992-11-30 1995-04-11 Motorola, Inc. Method and apparatus for trellis decoding in a multiple-access system
US5424881A (en) 1993-02-01 1995-06-13 Cirrus Logic, Inc. Synchronous read channel
GB2282300B (en) * 1993-09-22 1997-10-22 Northern Telecom Ltd Communications system and receiver devices therefor
US5844951A (en) * 1994-06-10 1998-12-01 Northeastern University Method and apparatus for simultaneous beamforming and equalization
FR2730883B1 (fr) * 1995-02-17 1997-04-04 Alcatel Telspace Dispositif d'initialisation d'un decodeur de viterbi compris dans un recepteur de signaux transmis sous forme de paquets emetteur, recepteur et procede correspondants
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
US6134277A (en) * 1997-09-04 2000-10-17 Ericsson Inc System and method for self-adaptive maximum likelihood sequence detection
KR100480691B1 (ko) * 1997-12-31 2005-05-16 엘지전자 주식회사 방송수신시스템의복조기와디코더인터페이스장치
US6130894A (en) * 1998-03-09 2000-10-10 Broadcom Homenetworking, Inc. Off-line broadband network interface
JP2000315968A (ja) * 1999-04-30 2000-11-14 Nec Corp 適応型信号推定器
US6493329B1 (en) * 1999-08-23 2002-12-10 Qualcomm Incorporated Adaptive channel estimation in a wireless communication system
US7006581B2 (en) * 2000-05-25 2006-02-28 Vigil Armando J Method for demodulating a digital signal subjected to multipath propagation impairment and an associated receiver
US6961392B2 (en) * 2000-08-18 2005-11-01 Texas Instruments Incorporated Joint equalization and decoding using a search-based decoding algorithm
JP7167710B2 (ja) * 2016-06-10 2022-11-09 ソニーグループ株式会社 送信装置および方法、並びに、受信装置および方法

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US4503545A (en) * 1980-02-19 1985-03-05 Paradyne Corporation System for evaluating transmission line impairments
US4415872A (en) * 1981-08-17 1983-11-15 Bell Telephone Laboratories, Incorporated Adaptive equalizer
JPS58145258A (ja) * 1982-02-24 1983-08-30 Hitachi Ltd 受信デ−タ識別回路
US4547888A (en) * 1982-07-28 1985-10-15 Motorola, Inc. Recursive adaptive equalizer for SMSK data links
US4536878A (en) * 1982-09-20 1985-08-20 Sperry Corporation Bit serial convolutional decoder for VLSI implementation
US4516079A (en) * 1983-02-09 1985-05-07 Westinghouse Electric Corp. Coherent phase shift keyed demodulator for power line communication systems
US4555790A (en) * 1983-06-30 1985-11-26 Betts William L Digital modem having a monitor for signal-to-noise ratio
US4564952A (en) * 1983-12-08 1986-01-14 At&T Bell Laboratories Compensation of filter symbol interference by adaptive estimation of received symbol sequences
US4615038A (en) * 1984-06-06 1986-09-30 At&T Information Systems Inc. Equalization of modulated data signals utilizing tentative and final decisions and replication of non-linear channel distortion
US4631735A (en) * 1984-12-28 1986-12-23 Codex Corporation Coded modulation system with feedback
DE3610383A1 (de) * 1986-03-27 1987-10-01 Ant Nachrichtentech Adaptiver entscheidungsrueckgekoppelter entzerrer

Also Published As

Publication number Publication date
WO1988009591A1 (en) 1988-12-01
EP0318538A1 (en) 1989-06-07
NO163120B (no) 1989-12-27
NO872093D0 (no) 1987-05-19
US5029186A (en) 1991-07-02
NO872093L (no) 1988-11-21

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