BR8705798A - Equalizador adaptativo de faixa de frequencias para sistemas digitais de radio direcional(drs) - Google Patents

Equalizador adaptativo de faixa de frequencias para sistemas digitais de radio direcional(drs)

Info

Publication number
BR8705798A
BR8705798A BR8705798A BR8705798A BR8705798A BR 8705798 A BR8705798 A BR 8705798A BR 8705798 A BR8705798 A BR 8705798A BR 8705798 A BR8705798 A BR 8705798A BR 8705798 A BR8705798 A BR 8705798A
Authority
BR
Brazil
Prior art keywords
adaptive frequency
drs
frequency band
radio systems
directional radio
Prior art date
Application number
BR8705798A
Other languages
English (en)
Portuguese (pt)
Inventor
Josef A Nossek
Georg Sebald
Berthold Lankl
Klaus Boshold
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of BR8705798A publication Critical patent/BR8705798A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/01—Equalisers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radio Relay Systems (AREA)
  • Filters That Use Time-Delay Elements (AREA)
BR8705798A 1986-10-31 1987-10-30 Equalizador adaptativo de faixa de frequencias para sistemas digitais de radio direcional(drs) BR8705798A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3637051 1986-10-31

Publications (1)

Publication Number Publication Date
BR8705798A true BR8705798A (pt) 1988-05-31

Family

ID=6312853

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8705798A BR8705798A (pt) 1986-10-31 1987-10-30 Equalizador adaptativo de faixa de frequencias para sistemas digitais de radio direcional(drs)

Country Status (10)

Country Link
US (1) US4800572A (enExample)
EP (1) EP0268842B1 (enExample)
JP (1) JPS63164537A (enExample)
AT (1) ATE72081T1 (enExample)
AU (1) AU581375B2 (enExample)
BR (1) BR8705798A (enExample)
DE (1) DE3776287D1 (enExample)
MX (1) MX161449A (enExample)
NO (1) NO174609C (enExample)
YU (1) YU47270B (enExample)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2054049C (en) * 1990-11-05 1996-02-06 Henry L. Kazecki Apparatus and method for removing distortion in a received signal
EP0524541B1 (de) * 1991-07-25 1995-10-11 Siemens Aktiengesellschaft Adaptiver Frequenzbereichsentzerrer für Digital-Richtfunksysteme
US5293405A (en) * 1991-10-31 1994-03-08 International Business Machines Corp. Adaptive equalization and regeneration system
US5418789A (en) * 1992-10-14 1995-05-23 International Business Machines Corporation Fast communication link bit error rate estimator
US5778029A (en) * 1993-05-13 1998-07-07 Lockheed Martin Aerospace Corporation Signal conditioner with symbol addressed lookup table producing values which compensate linear and non-linear distortion using transversal filter
US5533063A (en) * 1994-01-31 1996-07-02 The Regents Of The University Of California Method and apparatus for multipath channel shaping
DE10052930B4 (de) * 2000-10-25 2006-09-21 Siemens Ag Verfahren zum Betreiben einer Filtereinheit sowie zugehörige Filtereinheit und deren Verwendung
US8295392B2 (en) * 2005-12-14 2012-10-23 Nec Corporation Digital communication system, indoor unit, and outdoor unit
EP3206353B1 (en) * 2016-02-09 2020-02-05 Technische Universität München Filter banks and methods for operating filter banks

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1353018A (en) * 1970-04-21 1974-05-15 Xerox Corp Automatic transversal equalizer
US3781722A (en) * 1973-03-12 1973-12-25 Rca Corp Digitally variable delay time system
US3978435A (en) * 1974-04-26 1976-08-31 Cselt - Centro Studi E Laboratori Telecomunicazioni Spa Digital equalizer for data-transmission system
US3883830A (en) * 1974-05-13 1975-05-13 Hekimian Laboratories Inc Line conditioner with independent gain and delay control
US4100495A (en) * 1975-11-27 1978-07-11 Cselt - Centro Studi E Laboratori Telecomunicazioni Adaptive method of and means for recovering digital signals
JPS52156533A (en) * 1976-06-23 1977-12-27 Kokusai Denshin Denwa Co Ltd Frequency division equalizing system
US4361892A (en) * 1980-11-03 1982-11-30 Bell Telephone Laboratories, Incorporated Adaptive equalizer
JPS57173232A (en) * 1981-04-17 1982-10-25 Hitachi Ltd Automatic equalizer
JPS5892119A (ja) * 1981-11-27 1983-06-01 Hitachi Ltd 線路等化器
CA1181817A (en) * 1982-04-28 1985-01-29 John D. Mcnicol Intermediate frequency slope compensation control arrangements
DE3225621A1 (de) * 1982-07-08 1984-01-12 Siemens AG, 1000 Berlin und 8000 München Adaptiver entzerrer zur entzerrung mehrstufiger signale
FR2540692B1 (fr) * 1983-02-07 1985-06-14 Labo Electronique Physique Dispositif d'egalisation d'amplitude auto-adaptatif pour faisceaux hertziens numeriques
CA1238368A (en) * 1983-10-14 1988-06-21 Takayuki Ozaki Digital radio receiving apparatus
ATE42880T1 (de) * 1984-10-24 1989-05-15 Siemens Ag Zwischenfrequenz-(zf-) transversalentzerrer.
JPH0740678B2 (ja) * 1984-12-18 1995-05-01 日本電気株式会社 バ−スト信号の受信方法及び装置
AR241298A1 (es) * 1985-10-03 1992-04-30 Siemens Ag Ecualizador transversal adaptivo .

Also Published As

Publication number Publication date
NO874526L (no) 1988-05-02
NO874526D0 (no) 1987-10-30
NO174609B (no) 1994-02-21
DE3776287D1 (de) 1992-03-05
AU8046087A (en) 1988-05-05
US4800572A (en) 1989-01-24
EP0268842A1 (de) 1988-06-01
YU47270B (sh) 1995-01-31
JPH0450771B2 (enExample) 1992-08-17
AU581375B2 (en) 1989-02-16
EP0268842B1 (de) 1992-01-22
ATE72081T1 (de) 1992-02-15
JPS63164537A (ja) 1988-07-07
YU157087A (en) 1990-10-31
NO174609C (no) 1994-06-01
MX161449A (es) 1990-09-27

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Legal Events

Date Code Title Description
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 30/10/2002