DE69520895D1 - Verfahren und Vorrichtung, die es einem Modem erlauben, sich auf einen Sender digitaler Daten über einen Funkkanal in Anwesenheit von Störern zu Synchronisieren - Google Patents
Verfahren und Vorrichtung, die es einem Modem erlauben, sich auf einen Sender digitaler Daten über einen Funkkanal in Anwesenheit von Störern zu SynchronisierenInfo
- Publication number
- DE69520895D1 DE69520895D1 DE69520895T DE69520895T DE69520895D1 DE 69520895 D1 DE69520895 D1 DE 69520895D1 DE 69520895 T DE69520895 T DE 69520895T DE 69520895 T DE69520895 T DE 69520895T DE 69520895 D1 DE69520895 D1 DE 69520895D1
- Authority
- DE
- Germany
- Prior art keywords
- interferers
- modem
- transmitter
- allow
- digital data
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/0848—Joint weighting
- H04B7/0854—Joint weighting using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/04—Speed or phase control by synchronisation signals
- H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
- H04L7/042—Detectors therefor, e.g. correlators, state machines
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/0848—Joint weighting
- H04B7/0851—Joint weighting using training sequences or error signal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/0848—Joint weighting
- H04B7/0857—Joint weighting using maximum ratio combining techniques, e.g. signal-to- interference ratio [SIR], received signal strenght indication [RSS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L7/00—Arrangements for synchronising receiver with transmitter
- H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
- H04L7/027—Speed or phase control by the received code signals, the signals containing no special synchronisation information extracting the synchronising or clock signal from the received signal spectrum, e.g. by using a resonant or bandpass circuit
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9400634A FR2715488B1 (fr) | 1994-01-21 | 1994-01-21 | Procédé et dispositif permettant à un modem de se synchroniser sur un transmetteur de données numériques par voie hertzienne en présence de brouilleurs. |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69520895D1 true DE69520895D1 (de) | 2001-06-21 |
DE69520895T2 DE69520895T2 (de) | 2001-09-27 |
Family
ID=9459254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69520895T Expired - Lifetime DE69520895T2 (de) | 1994-01-21 | 1995-01-13 | Verfahren und Vorrichtung, die es einem Modem erlauben, sich auf einen Sender digitaler Daten über einen Funkkanal in Anwesenheit von Störern zu Synchronisieren |
Country Status (5)
Country | Link |
---|---|
US (1) | US5812090A (de) |
EP (1) | EP0665665B1 (de) |
DE (1) | DE69520895T2 (de) |
FR (1) | FR2715488B1 (de) |
NO (1) | NO308637B1 (de) |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7035661B1 (en) | 1996-10-11 | 2006-04-25 | Arraycomm, Llc. | Power control with signal quality estimation for smart antenna communication systems |
US6463295B1 (en) | 1996-10-11 | 2002-10-08 | Arraycomm, Inc. | Power control with signal quality estimation for smart antenna communication systems |
US6275543B1 (en) | 1996-10-11 | 2001-08-14 | Arraycomm, Inc. | Method for reference signal generation in the presence of frequency offsets in a communications station with spatial processing |
US5930243A (en) * | 1996-10-11 | 1999-07-27 | Arraycomm, Inc. | Method and apparatus for estimating parameters of a communication system using antenna arrays and spatial processing |
US6335954B1 (en) | 1996-12-27 | 2002-01-01 | Ericsson Inc. | Method and apparatus for joint synchronization of multiple receive channels |
FR2758926B1 (fr) * | 1997-01-24 | 1999-04-30 | France Telecom | Procede d'egalisation multicapteurs dans un recepteur radioelectrique comportant un nombre determine de voies de reception et recepteur correspondant |
FR2762164B1 (fr) * | 1997-04-14 | 1999-09-24 | Nortel Matra Cellular | Sondage a ponderation temporelle d'un canal de transmission |
FR2764074B1 (fr) | 1997-06-03 | 1999-08-20 | Thomson Csf | Procede et dispositif de radiogoniometrie cooperative en transmission |
FR2766320B1 (fr) | 1997-07-15 | 1999-10-15 | Thomson Csf | Procede et dispositif d'analyse des interferences dans un systeme de radiocommunication cellulaire |
US6615024B1 (en) | 1998-05-01 | 2003-09-02 | Arraycomm, Inc. | Method and apparatus for determining signatures for calibrating a communication station having an antenna array |
US6501747B1 (en) * | 1998-08-20 | 2002-12-31 | Metawave Communications Corporation | Manifold assisted channel estimation and demodulation for CDMA systems in fast fading environments |
JP2000354079A (ja) * | 1999-04-28 | 2000-12-19 | Texas Instr Inc <Ti> | ワイヤライン・モデム内の多重サンプリング・フレーム同期 |
US6600914B2 (en) | 1999-05-24 | 2003-07-29 | Arraycomm, Inc. | System and method for emergency call channel allocation |
US7412018B1 (en) * | 1999-05-26 | 2008-08-12 | Alcatel Usa Sourcing, L.P. | Rapid acquisition synchronization sequences for direct sequence spread spectrum systems using code time offsets |
US7139592B2 (en) | 1999-06-21 | 2006-11-21 | Arraycomm Llc | Null deepening for an adaptive antenna based communication station |
FI111109B (fi) * | 1999-12-09 | 2003-05-30 | Nokia Corp | Menetelmä vastaanottimen tahdistamiseksi, paikannusjärjestelmä, vastaanotin ja elektroniikkalaite |
FI19992653A (fi) * | 1999-12-09 | 2001-06-10 | Nokia Mobile Phones Ltd | Menetelmä vastaanottimen tahdistamiseksi ja vastaanotin |
FI112893B (fi) | 1999-12-21 | 2004-01-30 | Nokia Corp | Menetelmä vastaanottimessa ja vastaanotin |
FR2806499B1 (fr) * | 2000-03-20 | 2003-10-10 | Thomson Csf | Procede d'estimation d'une matrice de correlation de signaux interferents recus par un reseau de capteurs |
US7043259B1 (en) | 2000-09-29 | 2006-05-09 | Arraycomm, Inc. | Repetitive paging from a wireless data base station having a smart antenna system |
US6795409B1 (en) | 2000-09-29 | 2004-09-21 | Arraycomm, Inc. | Cooperative polling in a wireless data communication system having smart antenna processing |
FR2819357B1 (fr) * | 2001-01-09 | 2016-02-12 | Thomson Csf | Procede et recepteur autodidacte pour determiner les parametres spatio-temporels d'un canal de propagation |
FR2820580B1 (fr) | 2001-02-02 | 2004-06-04 | Thomson Csf | Procede pour estimer les parametres d'un canal de propagation |
FR2821502A1 (fr) * | 2001-02-27 | 2002-08-30 | Thomson Csf | Procede et dispositif d'estimation d'un canal de propagation a partir de ses statistiques |
FR2824431A1 (fr) * | 2001-05-03 | 2002-11-08 | Mitsubishi Electric Inf Tech | Methode et dispositif de reception de signal |
CN1283059C (zh) * | 2003-01-23 | 2006-11-01 | 上海贝尔阿尔卡特股份有限公司 | 一种载频同步的方法和装置 |
FR2854290B1 (fr) | 2003-04-25 | 2005-08-26 | Thales Sa | Procede de demodulation de signaux de type ofdm en presence de signaux brouilleurs co-canaux forts |
FR2866509B1 (fr) | 2004-02-13 | 2006-04-28 | Thales Sa | Procede d'optimisation de la planification dans un systeme de communications de type cdma |
US20050232340A1 (en) * | 2004-04-16 | 2005-10-20 | Lucent Technologies, Inc. | Intelligent antenna receiver architecture |
FR2882479B1 (fr) * | 2005-02-22 | 2007-04-20 | Thales Sa | Procede et dispositif de synchronisation de liaisons rectilignes ou quasi-rectilignes en presence d'interferences |
FR2891683B1 (fr) * | 2005-10-05 | 2008-02-08 | Eads Telecom Soc Par Actions S | Reception ofdm en mode multi antennes |
FR2919931A1 (fr) * | 2007-08-08 | 2009-02-13 | Thales Sa | Procede et dispositif pour determiner la reponse impulsionnelle de canaux de propagation impliquant des emetteurs, des reflecteurs et des capteurs fixes ou mobiles |
US20100117884A1 (en) * | 2008-11-11 | 2010-05-13 | Qualcomm Incorporated | Method for performing consistency checks for multiple signals received from a transmitter |
FR2954515B1 (fr) * | 2009-12-23 | 2012-08-17 | Thales Sa | Procede et dispositif de goniometrie de signaux interferant un signal utile module par plusieurs porteuses. |
US10705176B2 (en) * | 2015-10-13 | 2020-07-07 | Northrop Grumman Systems Corporation | Signal direction processing for an antenna array |
FR3046311B1 (fr) | 2015-12-29 | 2017-12-29 | Thales Sa | Procede de lutte anti-interference adaptatif dans un recepteur multi-voies |
FR3061617A1 (fr) | 2016-12-29 | 2018-07-06 | Thales | Procede de lutte anti-interferences par filtrage spatial ou filtrage spatio-temporel dans un recepteur multi-voies |
CN114553417B (zh) * | 2022-03-22 | 2024-01-09 | 上海循态量子科技有限公司 | 连续变量量子密钥分发系统中正则分量预校准方法及系统 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4752969A (en) * | 1986-01-16 | 1988-06-21 | Kenneth Rilling | Anti-multipath signal processor |
US5144322A (en) * | 1988-11-25 | 1992-09-01 | The United States Of America As Represented By The Secretary Of The Navy | Large-aperture sparse array detector system for multiple emitter location |
DE4130863C2 (de) * | 1991-09-17 | 1999-04-15 | Daimler Benz Aerospace Ag | Digitales Nachrichtenübertragungssystem |
US5481505A (en) * | 1995-05-15 | 1996-01-02 | The United States Of America As Represented By The Secretary Of The Navy | Tracking system and method |
-
1994
- 1994-01-21 FR FR9400634A patent/FR2715488B1/fr not_active Expired - Fee Related
-
1995
- 1995-01-13 EP EP95400070A patent/EP0665665B1/de not_active Expired - Lifetime
- 1995-01-13 DE DE69520895T patent/DE69520895T2/de not_active Expired - Lifetime
- 1995-05-23 NO NO952033A patent/NO308637B1/no not_active IP Right Cessation
-
1997
- 1997-06-27 US US08/882,831 patent/US5812090A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
NO952033D0 (no) | 1995-05-23 |
NO952033L (no) | 1995-11-27 |
FR2715488A1 (fr) | 1995-07-28 |
FR2715488B1 (fr) | 1996-03-22 |
US5812090A (en) | 1998-09-22 |
EP0665665A1 (de) | 1995-08-02 |
NO308637B1 (no) | 2000-10-02 |
EP0665665B1 (de) | 2001-05-16 |
DE69520895T2 (de) | 2001-09-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |