DE69131167D1 - Vorrichtung und verfahren zum entzerren eines verzerrten signals in einem empfänger - Google Patents

Vorrichtung und verfahren zum entzerren eines verzerrten signals in einem empfänger

Info

Publication number
DE69131167D1
DE69131167D1 DE69131167T DE69131167T DE69131167D1 DE 69131167 D1 DE69131167 D1 DE 69131167D1 DE 69131167 T DE69131167 T DE 69131167T DE 69131167 T DE69131167 T DE 69131167T DE 69131167 D1 DE69131167 D1 DE 69131167D1
Authority
DE
Germany
Prior art keywords
distorbed
equalizing
receiver
signal
distorbed signal
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
Application number
DE69131167T
Other languages
English (en)
Other versions
DE69131167T2 (de
Inventor
Gerald Labedz
Michael Kotzin
Joseph Schuler
Eric Ziolko
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of DE69131167D1 publication Critical patent/DE69131167D1/de
Application granted granted Critical
Publication of DE69131167T2 publication Critical patent/DE69131167T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006Arrangements for removing intersymbol interference
    • H04L25/03178Arrangements involving sequence estimation techniques
    • H04L25/03248Arrangements for operating in conjunction with other apparatus
    • H04L25/03299Arrangements for operating in conjunction with other apparatus with noise-whitening circuitry
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202Channel estimation
    • H04L25/0212Channel estimation of impulse response
    • H04L25/0218Channel estimation of impulse response with detection of nulls
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202Channel estimation
    • H04L25/0224Channel estimation using sounding signals
    • H04L25/0228Channel estimation using sounding signals with direct estimation from sounding signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Dc Digital Transmission (AREA)
  • Radio Transmission System (AREA)
  • Noise Elimination (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Filters That Use Time-Delay Elements (AREA)
DE69131167T 1990-12-20 1991-12-17 Vorrichtung und verfahren zum entzerren eines verzerrten signals in einem empfänger Expired - Lifetime DE69131167T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/630,922 US5251233A (en) 1990-12-20 1990-12-20 Apparatus and method for equalizing a corrupted signal in a receiver
PCT/US1991/009479 WO1992011708A1 (en) 1990-12-20 1991-12-17 Apparatus and method for equalizing a corrupted signal in a receiver

Publications (2)

Publication Number Publication Date
DE69131167D1 true DE69131167D1 (de) 1999-05-27
DE69131167T2 DE69131167T2 (de) 1999-11-11

Family

ID=24529123

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69131167T Expired - Lifetime DE69131167T2 (de) 1990-12-20 1991-12-17 Vorrichtung und verfahren zum entzerren eines verzerrten signals in einem empfänger

Country Status (17)

Country Link
US (1) US5251233A (de)
EP (1) EP0563300B1 (de)
JP (1) JPH06506324A (de)
KR (1) KR970007362B1 (de)
CN (1) CN1035854C (de)
AR (1) AR247048A1 (de)
AU (1) AU657287B2 (de)
BR (1) BR9107237A (de)
CA (1) CA2097694A1 (de)
DE (1) DE69131167T2 (de)
ES (1) ES2131068T3 (de)
FI (1) FI106664B (de)
IL (1) IL100456A (de)
MX (1) MX9102720A (de)
MY (1) MY107671A (de)
NZ (2) NZ270872A (de)
WO (1) WO1992011708A1 (de)

Families Citing this family (76)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1236977B (it) * 1989-12-22 1993-05-12 Italtel Spa Ricevitore per un sistema radiomobile digitale con cancellazione di segnali interferenti isofrequenziali aventi lo stesso tipo di modulazione,e relativo metodo
FR2696301B1 (fr) * 1992-09-25 1994-11-04 Alcatel Radiotelephone Dispositif de filtrage pour égaliseur à estimation de séquence.
FR2696604B1 (fr) * 1992-10-07 1994-11-04 Alcatel Radiotelephone Dispositif d'estimation d'un canal de transmission.
US5408696A (en) * 1992-12-11 1995-04-18 Telefonaktiebolaget L M Ericsson Method and apparatus for correcting a radio signal strength information signal
JP2605566B2 (ja) * 1992-12-25 1997-04-30 日本電気株式会社 適応型等化器
US5363412A (en) * 1992-12-28 1994-11-08 Motorola, Inc. Method and apparatus of adaptive maximum likelihood sequence estimation using filtered correlation synchronization
JPH06252699A (ja) * 1993-03-01 1994-09-09 Sony Corp 時分割多重化処理方式における自動等化器
SE513657C2 (sv) * 1993-06-24 2000-10-16 Ericsson Telefon Ab L M Sätt och anordning att vid digital signalöverföring estimera överförda symboler hos en mottagare
FR2710214B1 (fr) * 1993-09-15 1995-10-20 Alcatel Mobile Comm France Détecteur à seuil pour système de transmission radionumérique, dispositifs comprenant un tel détecteur à seuil et utilisation correspondante.
US5400269A (en) * 1993-09-20 1995-03-21 Rockwell International Corporation Closed-loop baseband controller for a rebalance loop of a quartz angular rate sensor
JP3560991B2 (ja) * 1993-09-20 2004-09-02 株式会社東芝 適応型最尤系列推定装置
DE69432100T2 (de) * 1993-11-05 2003-09-25 Ntt Mobile Communications Network Inc., Tokio/Tokyo Replikherstellendes adaptives demodulationsverfahren und dieses verwendender demodulator
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
FR2719961B1 (fr) * 1994-05-11 1996-06-21 Alcatel Mobile Comm France Dispositif d'estimation de la qualité d'un canal de transmission et utilisation correspondante.
US5844951A (en) * 1994-06-10 1998-12-01 Northeastern University Method and apparatus for simultaneous beamforming and equalization
US5614914A (en) * 1994-09-06 1997-03-25 Interdigital Technology Corporation Wireless telephone distribution system with time and space diversity transmission for determining receiver location
SE503522C2 (sv) * 1994-10-31 1996-07-01 Ericsson Telefon Ab L M Förfarande och anordning för kanalestimering
JPH08307283A (ja) * 1995-03-09 1996-11-22 Oki Electric Ind Co Ltd 最尤系列推定器及び最尤系列推定方法
GB2309868A (en) * 1996-01-30 1997-08-06 Sony Corp Radio receiver detects FCCH synchronising signal
US5822368A (en) * 1996-04-04 1998-10-13 Lucent Technologies Inc. Developing a channel impulse response by using distortion
US5905757A (en) * 1996-10-04 1999-05-18 Motorola, Inc. Filter co-processor
JP3311943B2 (ja) * 1996-10-18 2002-08-05 松下電器産業株式会社 干渉信号除去装置
FI102578B (fi) 1996-11-27 1998-12-31 Nokia Telecommunications Oy Menetelmä taajuuseron mittaamiseksi ja vastaanotin
US5848108A (en) * 1996-11-29 1998-12-08 Northern Telecom Limited Selective filtering for co-channel interference reduction
KR100241890B1 (ko) 1997-01-10 2000-03-02 윤종용 디지털 통신 시스템에서 간섭 제거 회로
US5946349A (en) * 1997-04-30 1999-08-31 Lucent Technologies Inc. Method for coefficient smoothing in adaptive equalizer systems
IL121843A (en) * 1997-09-28 2000-06-29 Dspc Israel Ltd Detection in the presence of co-channel interference
JP3119351B2 (ja) * 1997-11-28 2000-12-18 日本電気株式会社 受信信号の等化方法及び回路
GB2333015B (en) * 1997-12-31 2000-03-29 Samsung Electronics Co Ltd Controlling state number of viterbi equalizer having variable state number
GB2335578B (en) * 1998-03-17 2000-07-12 Samsung Electronics Co Ltd Add-compare selection circuit
EP0966113B1 (de) * 1998-06-19 2003-12-10 Motorola Semiconducteurs S.A. Verfahren und Vorrichtung zum Entzerren in einem Funkempfänger
ATE270482T1 (de) 1998-07-21 2004-07-15 Nokia Corp Schätzung der kanalimpulsantwort mittels der streuung vom empfangenen signal
EP0977384A1 (de) * 1998-07-31 2000-02-02 Hewlett-Packard Company Verfahren und Einrichtung für die Messung des Energiespektrums eines mobiles Handapparats
US6381271B1 (en) * 1998-08-17 2002-04-30 Telefonaktiebolaget Lm Ericsson (Publ) Low complexity decision feedback sequence estimation
DE69814181T2 (de) 1998-09-22 2004-03-04 Nokia Corp. Verfahren und vorrichtung zur konfiguration eines spracherkennungssystems
EP1147623B1 (de) 1998-11-18 2003-07-02 Nokia Corporation Verfahren zum verändern der kanalimpulsantwort in tdma-systemen
DE69807535T2 (de) 1998-11-18 2003-04-24 Nokia Corp., Espoo Verfahren zur verbesserten schätzung der kanalimpulsantwort in tdma-systemen
DE19920819C1 (de) * 1999-05-06 2000-10-26 Bosch Gmbh Robert Verfahren und Vorrichtung zur Schätzung von gedächtnisbehafteten Übertragungskanälen
US6466616B1 (en) 1999-07-02 2002-10-15 Telefonaktiebolaget Lm Ericsson (Publ) Power efficient equalization
MY133723A (en) * 1999-09-17 2007-11-30 Ericsson Telefon Ab L M "apparatus and method for substantially eliminating a near-channel interfering amplitude modulated signal"
IT1314344B1 (it) * 1999-12-30 2002-12-09 Telit Mobile Terminals Spa Metodo ricevitore e sistema di trasmissione wcdma-utra/fdd
FR2805689B1 (fr) 2000-02-29 2003-07-04 Thomson Csf Procede et dispositif d'estimation d'un canal de propagation
US6721365B1 (en) * 2000-04-18 2004-04-13 Shih-Chung Yin Receiver for a home phone-lines LAN system
US6907092B1 (en) 2000-07-14 2005-06-14 Comsys Communication & Signal Processing Ltd. Method of channel order selection and channel estimation in a wireless communication system
DE60032906T2 (de) * 2000-11-07 2007-10-25 Stmicroelectronics N.V. Verfahren und Vorrichtung zur Kanalschätzung, insbesondere für ein Mobiltelefon
FI111886B (fi) 2000-12-08 2003-09-30 Nokia Corp Tiedonkäsittelymenetelmä
US7206583B2 (en) * 2001-05-15 2007-04-17 Telefonaktiebolaget L M Ericsson (Publ) Co-channel interference suppression by estimating the time of arrival (TOA)
US7079601B2 (en) 2001-06-19 2006-07-18 Telefonaktiebolaget Lm Ericsson (Publ) Efficient channel estimation in a digital communications system
EP1274193A1 (de) * 2001-07-04 2003-01-08 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Verfahren und Vorrichtung zur Bereitstellung von Taktinformation in einem drahtlosen Nachrichtenübertragungsnetzwerk
EP1294148A1 (de) * 2001-09-12 2003-03-19 Sony International (Europe) GmbH Laufzeitstreuungschätzung Mehrwegeschwundkanälen in einem OFDM-Emfänger
US7227885B2 (en) * 2001-10-17 2007-06-05 Motorola, Inc. Correlation method in a communication system and apparatus
US6640088B2 (en) * 2001-12-14 2003-10-28 Motorola, Inc. Method and system for adaptive channel estimation techniques
US6873662B2 (en) * 2002-02-14 2005-03-29 Interdigital Technology Corporation Wireless communication system having adaptive threshold for timing deviation measurement and method
US7953193B2 (en) * 2002-03-28 2011-05-31 Broadcom Corporation Sparse channel equalization
GB0209792D0 (en) * 2002-04-29 2002-06-05 Thales Plc Channel estimation
US7266146B2 (en) * 2002-06-18 2007-09-04 Ralink Technology, Inc. Symbol-based decision feedback equalizer (DFE) optimal equalization method and apparatus with maximum likelihood sequence estimation for wireless receivers under multipath channels
SG108861A1 (en) * 2002-07-18 2005-02-28 Oki Techno Ct Singapore Pte High rate receiver
US7287412B2 (en) * 2003-06-03 2007-10-30 Nano-Proprietary, Inc. Method and apparatus for sensing hydrogen gas
US7203257B2 (en) * 2003-05-23 2007-04-10 Zenith Electronics Corporation Best linear unbiased channel estimation for frequency selective multipath channels with long delay spreads
US20070240491A1 (en) * 2003-06-03 2007-10-18 Nano-Proprietary, Inc. Hydrogen Sensor
KR100575723B1 (ko) * 2003-06-14 2006-05-03 엘지전자 주식회사 시분할 동기 코드 분할 방식의 채널 판단 방법
US8391413B2 (en) 2003-12-19 2013-03-05 Qualcomm Incorporated Channel estimation for an OFDM communication system with inactive subbands
US20050232347A1 (en) * 2004-04-15 2005-10-20 Mediatek Incorporation Apparatus and method for noise enhancement reduction in an adaptive equalizer
US20060029126A1 (en) * 2004-04-15 2006-02-09 Mediatek Inc. Apparatus and method for noise enhancement reduction in an adaptive equalizer
EP1779552A4 (de) * 2004-08-16 2009-07-08 Zte San Diego Inc Schnelle zellsuche und präzise synchronisation bei drahtlosen kommunikationen
US9258149B2 (en) * 2004-09-10 2016-02-09 Mstar Semiconductor, Inc. Refinement of channel response calculation
GB0420179D0 (en) * 2004-09-10 2004-10-13 Ttp Communications Ltd Refinement of channel response calculation
US8761312B2 (en) * 2005-02-11 2014-06-24 Qualcomm Incorporated Selection of a thresholding parameter for channel estimation
US7899431B2 (en) 2005-04-04 2011-03-01 Freescale Semiconductor, Inc. DC offset correction system for a receiver with baseband gain control
US7844232B2 (en) * 2005-05-25 2010-11-30 Research In Motion Limited Joint space-time optimum filters (JSTOF) with at least one antenna, at least one channel, and joint filter weight and CIR estimation
WO2007019244A2 (en) * 2005-08-03 2007-02-15 Nano-Proprietary, Inc. Continuous range hydrogen sensor
US20070127608A1 (en) * 2005-12-06 2007-06-07 Jacob Scheim Blind interference mitigation in a digital receiver
DE102006056158B4 (de) * 2006-11-28 2011-11-17 Infineon Technologies Ag Kanalschätzung für OFDM Systeme
US8340683B2 (en) * 2009-09-21 2012-12-25 Andrew, Llc System and method for a high throughput GSM location solution
KR20130049978A (ko) * 2011-11-07 2013-05-15 한국전자통신연구원 채널 추정 장치 및 방법
US9578469B2 (en) 2014-10-02 2017-02-21 Motorola Solutions, Inc. Method and system for direct mode communication within a talkgroup

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4112370A (en) * 1976-08-06 1978-09-05 Signatron, Inc. Digital communications receiver for dual input signal
FI844810A0 (fi) * 1984-12-05 1984-12-05 Nokia Oy Ab Foerfarande foer mottagning och detektering av digitala signaler.
DE3543898A1 (de) * 1985-12-12 1987-06-19 Blaupunkt Werke Gmbh Entzerrer in form eines digitalen nichtrekursiven filters
US4885757A (en) * 1987-06-01 1989-12-05 Texas Instruments Incorporated Digital adaptive receiver employing maximum-likelihood sequence estimation with neural networks
US4829543A (en) * 1987-12-04 1989-05-09 Motorola, Inc. Phase-coherent TDMA quadrature receiver for multipath fading channels
GB2215567B (en) * 1988-03-05 1992-11-18 Plessey Co Plc Improvements in or relating to equalisers
US5031193A (en) * 1989-11-13 1991-07-09 Motorola, Inc. Method and apparatus for diversity reception of time-dispersed signals
JPH03195129A (ja) * 1989-12-22 1991-08-26 Mitsubishi Electric Corp 最尤系列推定装置
US5164959A (en) * 1991-01-22 1992-11-17 Hughes Aircraft Company Digital equalization method and apparatus

Also Published As

Publication number Publication date
JPH06506324A (ja) 1994-07-14
EP0563300A1 (de) 1993-10-06
ES2131068T3 (es) 1999-07-16
EP0563300B1 (de) 1999-04-21
US5251233A (en) 1993-10-05
IL100456A0 (en) 1992-09-06
NZ241128A (en) 1997-01-29
CN1035854C (zh) 1997-09-10
MY107671A (en) 1996-05-30
WO1992011708A1 (en) 1992-07-09
EP0563300A4 (en) 1993-12-22
BR9107237A (pt) 1994-04-05
FI932823A0 (fi) 1993-06-18
MX9102720A (es) 1992-06-01
CN1067344A (zh) 1992-12-23
KR930703750A (ko) 1993-11-30
FI932823A (fi) 1993-06-18
CA2097694A1 (en) 1992-06-21
AU657287B2 (en) 1995-03-09
NZ270872A (en) 1997-01-29
AR247048A1 (es) 1994-10-31
FI106664B (fi) 2001-03-15
KR970007362B1 (ko) 1997-05-07
DE69131167T2 (de) 1999-11-11
IL100456A (en) 1995-03-30
AU9165491A (en) 1992-07-22

Similar Documents

Publication Publication Date Title
DE69131167D1 (de) Vorrichtung und verfahren zum entzerren eines verzerrten signals in einem empfänger
DE69624698D1 (de) Verfahren zum empfang und suchen eines in bursts ausgesandten signals
DE69218460D1 (de) Verfahren und vorrichtung zum erzeugen eines signals
DE69031107D1 (de) Anordnung und Verfahren zum Übertragen eines Videosignals
DE69730844D1 (de) Verfahren und vorrichtung zum empfang eines signals in einem digitalen hochfrequenz-kommunikationssystem
DE69413585D1 (de) Vorrichtung und Verfahren zum Liefern doppelter Ausgangssignale in einem Telemetrieübertrager
DE69211368D1 (de) Verfahren und Vorrichtung zur Übertragung und zum Empfang eines digitalen Mehrträgerfernsehsignals
DE69633039D1 (de) Vorrichtung und Verfahren zur Umwandlung eines Signals
DE69824873D1 (de) Verfahren und vorrichtung zum verstärken eines signals
DE69732969D1 (de) Verfahren und einrichtung zum transformieren eines signals
DE69031642D1 (de) Verfahren und Gerät zur Verbesserung eines Multipliziersignals
DE69636180D1 (de) Verfahren und Vorrichtung zum Empfang und/oder Wiedergabe von digitalen Signalen
DE69634845D1 (de) Vorrichtung und verfahren zur kohärenten verfolgung eines signals zur verwendung in einem cdma empfänger
DE69535646D1 (de) Vorrichtung und Verfahren zum Formulieren eines interaktiven Signales
DE69029136D1 (de) Gerät und verfahren zum transformieren eines digitalisierten bildsignals
DE69228108D1 (de) Verfahren und Vorrichtung zum Empfang von Informationssignalen
DE69420593D1 (de) Verfahren und Vorrichtung zum Erfassen von seismischen Signalen
DE69425020D1 (de) Verfahren zum Erfassen eines Signales und Gerät zum Erfassen eines Signales
DE69636916D1 (de) Vorrichtung und Verfahren zur Bildung eines Signals
DE69414295D1 (de) Verfahren und Vorrichtung zum Übertragen und Empfangen eines Videosignals
DE69421985D1 (de) Verfahren und Vorrichtung zum doppeltem Sichern eines Anschlusses in einem Verbinder
DE69315231D1 (de) Verfahren und Vorrichtung zum Erfassen von Rauschbursts in einem Signalprozessor
DE69320510D1 (de) Verfahren und Vorrichtung zum Auswählen der optimalen Empfangsfrequenz in einem Vielkanalempfänger
DE3484000D1 (de) Verfahren und vorrichtung zum wiedergeben eines chrominanzsignals.
DE69021196D1 (de) Verfahren und vorrichtung zur kompandierung eines signals.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: SCHUMACHER & WILLSAU, PATENTANWALTSSOZIETAET, 80335 MUENCHEN