FI932823A - Anordning och foerfarande foer korrigering av en foervraengd signal i en mottagare - Google Patents

Anordning och foerfarande foer korrigering av en foervraengd signal i en mottagare Download PDF

Info

Publication number
FI932823A
FI932823A FI932823A FI932823A FI932823A FI 932823 A FI932823 A FI 932823A FI 932823 A FI932823 A FI 932823A FI 932823 A FI932823 A FI 932823A FI 932823 A FI932823 A FI 932823A
Authority
FI
Finland
Prior art keywords
procedure
adjustment
motor
signal
Prior art date
Application number
FI932823A
Other languages
English (en)
Other versions
FI106664B (fi
FI932823A0 (fi
Inventor
Gerald P Labedz
Michael D Kotzin
Joseph J Schuler
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 FI932823A0 publication Critical patent/FI932823A0/fi
Publication of FI932823A publication Critical patent/FI932823A/fi
Application granted granted Critical
Publication of FI106664B publication Critical patent/FI106664B/fi

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)
  • Filters That Use Time-Delay Elements (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
FI932823A 1990-12-20 1993-06-18 Laite ja menetelmä vääristyneen signaalin korjaamiseksi vastaanottimessa FI106664B (fi)

Applications Claiming Priority (4)

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
US63092290 1990-12-20
PCT/US1991/009479 WO1992011708A1 (en) 1990-12-20 1991-12-17 Apparatus and method for equalizing a corrupted signal in a receiver
US9109479 1991-12-17

Publications (3)

Publication Number Publication Date
FI932823A0 FI932823A0 (fi) 1993-06-18
FI932823A true FI932823A (fi) 1993-06-18
FI106664B FI106664B (fi) 2001-03-15

Family

ID=24529123

Family Applications (1)

Application Number Title Priority Date Filing Date
FI932823A FI106664B (fi) 1990-12-20 1993-06-18 Laite ja menetelmä vääristyneen signaalin korjaamiseksi vastaanottimessa

Country Status (17)

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

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
EP0684706B1 (en) * 1993-11-05 2003-02-05 Ntt Mobile Communications Network Inc. Replica producing adaptive demodulating method and demodulator using the same
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
FI102578B1 (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 (en) * 1998-06-19 2003-12-10 Motorola Semiconducteurs S.A. Method and apparatus for performing equalisation in a radio receiver
EP1099328B1 (en) 1998-07-21 2004-06-30 Nokia Corporation Channel impulse response estimation using received signal variance
EP0977384A1 (en) * 1998-07-31 2000-02-02 Hewlett-Packard Company Method and apparatus for measuring spectral energy of mobile handset
US6381271B1 (en) * 1998-08-17 2002-04-30 Telefonaktiebolaget Lm Ericsson (Publ) Low complexity decision feedback sequence estimation
ES2198758T3 (es) 1998-09-22 2004-02-01 Nokia Corporation Procedimiento y sistema de configuracion de un sistema de reconocimiento por voz.
EP1147624B1 (en) 1998-11-18 2002-08-28 Nokia Corporation A method for improved channel impulse response estimation in tdma systems
ATE244473T1 (de) 1998-11-18 2003-07-15 Nokia Corp Verfahren zum verändern 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 (en) * 2001-07-04 2003-01-08 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Method and device for providing timing information in a wireless communication system
EP1294148A1 (en) * 2001-09-12 2003-03-19 Sony International (Europe) GmbH Delay spread estimation of multipath fading channels in a OFDM receiver
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
WO2006023536A2 (en) * 2004-08-16 2006-03-02 Zte San Diego, Inc. Fast cell search and accurate sznchronization in wireless communications
EP1794961A2 (en) * 2004-09-10 2007-06-13 TTP Com Limited Refinement of a 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
US20100005853A1 (en) * 2005-08-03 2010-01-14 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
EP0563300B1 (en) 1999-04-21
MX9102720A (es) 1992-06-01
IL100456A0 (en) 1992-09-06
EP0563300A4 (en) 1993-12-22
FI106664B (fi) 2001-03-15
CN1035854C (zh) 1997-09-10
US5251233A (en) 1993-10-05
AU657287B2 (en) 1995-03-09
ES2131068T3 (es) 1999-07-16
KR970007362B1 (ko) 1997-05-07
NZ241128A (en) 1997-01-29
CN1067344A (zh) 1992-12-23
AU9165491A (en) 1992-07-22
BR9107237A (pt) 1994-04-05
FI932823A0 (fi) 1993-06-18
KR930703750A (ko) 1993-11-30
DE69131167D1 (de) 1999-05-27
AR247048A1 (es) 1994-10-31
CA2097694A1 (en) 1992-06-21
NZ270872A (en) 1997-01-29
EP0563300A1 (en) 1993-10-06
IL100456A (en) 1995-03-30
DE69131167T2 (de) 1999-11-11
JPH06506324A (ja) 1994-07-14
WO1992011708A1 (en) 1992-07-09
MY107671A (en) 1996-05-30

Similar Documents

Publication Publication Date Title
FI932823A (fi) Anordning och foerfarande foer korrigering av en foervraengd signal i en mottagare
FI932809A0 (fi) Kaernreaktoranlaeggning med en kaernspaerranordning och foerfarande foer avkylning av densamma i naturligt kretslopp
FI934361A (fi) Foerfarande och anordning foer evaluering av vaegningsparametrarna foer en signal i en mottagare
FI932960A0 (fi) Kontroll av frukters mogning och vaexters foeraoldring
FI932031A0 (fi) System och foerfarande foer behandling av biologiska vaetskor
FI88426B (fi) Foerfarande och anordning foer riktande av borrmaskins matarbalk
FI925480A0 (fi) Vattenloeslig pentacyklisk triterpenkomposition och foerfarande foer framstaellning av densamma
FI924272A (fi) Foerfarande och anordning foer maskinbearbetning av valsar och liknande arbetsstycken
NO920508D0 (no) Fremgangsmaate for fremstilling av et polyolefinskum
FI912891A (fi) Foerfarande foer reglering av en troeskeldekoder foer en signal med flera nivaoer och en televisionsmottagare med en saodan dekoder.
FI924549A0 (fi) Tvaettkomposition och testanordning och -metod foer bestaemning av mikroorganismer foerknipade med tandsjukdomar
FI930275A0 (fi) Hetblaosningsugn och foerfarande foer framstaellning av en hetblaosningsugn
NO914053L (no) Fremgangsmaate for fremstilling av 8-klorokinolonderivater
FI933198A0 (fi) Flytbaeddsbraennkammare med anordningar foer foerbaettring av foerdelning avbraensle och gaser
FI930002A0 (fi) Renings- och aotervinningsfoerfarande och anordning foer utfoerande av foerfarandet
FI931687A0 (fi) Foerfarande och anlaeggning foer framstaellning av anestesigasblandning
NO914985D0 (no) Fremgangsmaate for fremstilling av 15-nitro-tabersonin-derivater
NO914452D0 (no) Fremgangsmaate for fremstilling av isokinolinderivater
FI935488A0 (fi) Foerfarande och anornding foer interpolering av en diskrettidssignal
FI89089B (fi) Foerfarande och form foer gjutning av plattbelaeggning
FI934524A0 (fi) Cellulosabaserat foerpackningsmaterial med hoejdadsorptionsfoermaoga och foerfarande foer framstaellning av detta
FI924806A0 (fi) Saett och anordning foer reglering av rumstemperaturer
FI912156A (fi) Uppvaermning och avkylning av hushaollskaellare medelst jordvaerme
FI931065A0 (fi) Austenitiskt slitstarkt staol och foerfarande foer vaermebehandling av detta
FIU920385U0 (fi) Kombination av stordiaprojektor och projektorplatta

Legal Events

Date Code Title Description
PC Transfer of assignment of patent

Owner name: MOTOROLA MOBILITY, INC.

Free format text: MOTOROLA MOBILITY, INC.