WO1998042082A3 - Method and arrangement for forming an address - Google Patents

Method and arrangement for forming an address Download PDF

Info

Publication number
WO1998042082A3
WO1998042082A3 PCT/FI1998/000225 FI9800225W WO9842082A3 WO 1998042082 A3 WO1998042082 A3 WO 1998042082A3 FI 9800225 W FI9800225 W FI 9800225W WO 9842082 A3 WO9842082 A3 WO 9842082A3
Authority
WO
WIPO (PCT)
Prior art keywords
address
arrangement
forming
corrector
signal
Prior art date
Application number
PCT/FI1998/000225
Other languages
French (fr)
Other versions
WO1998042082A2 (en
Inventor
Olli Tapio
Original Assignee
Nokia Telecommunications Oy
Olli Tapio
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 Nokia Telecommunications Oy, Olli Tapio filed Critical Nokia Telecommunications Oy
Priority to AU64028/98A priority Critical patent/AU741822B2/en
Priority to EP98909524A priority patent/EP0968571B1/en
Priority to US09/380,701 priority patent/US6799021B1/en
Priority to JP54016798A priority patent/JP2001517391A/en
Priority to DE69840540T priority patent/DE69840540D1/en
Publication of WO1998042082A2 publication Critical patent/WO1998042082A2/en
Publication of WO1998042082A3 publication Critical patent/WO1998042082A3/en
Priority to NO994494A priority patent/NO994494D0/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio

Abstract

The invention relates to a method and arrangement for forming an address, the arrangement being used for forming a corrector table (130) address employed in signal predistortion that is used for compensating for signal distortions. The distortions are compensated for by means of corrector coefficients placed in the corrector table (130), the corrector coefficient being retrieved from the table on the basis of the address. The arrangement comprises calculation means (210, 220) that, on the basis of the received signal, calculate a result corresponding to the squaring of the received signal. The arrangement further comprises summing means (240) that, if required, sum up the results corresponding to the squaring, the sum forming a base address. The arrangement further comprises address correction means (250) that correct the above calculated base address by means of an address correction value.
PCT/FI1998/000225 1997-03-17 1998-03-13 Method and arrangement for forming an address WO1998042082A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AU64028/98A AU741822B2 (en) 1997-03-17 1998-03-13 Method and arrangement for forming an address
EP98909524A EP0968571B1 (en) 1997-03-17 1998-03-13 Method and arrangement for forming an address for corrector table employed in signal predistortion
US09/380,701 US6799021B1 (en) 1997-03-17 1998-03-13 Method and arrangement for forming an address
JP54016798A JP2001517391A (en) 1997-03-17 1998-03-13 Method and structure for forming an address
DE69840540T DE69840540D1 (en) 1997-03-17 1998-03-13 Method and arrangement for address formation for a correction table for use in signal predistortion
NO994494A NO994494D0 (en) 1997-03-17 1999-09-16 Procedure and apparatus for forming an address

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI971121A FI103306B (en) 1997-03-17 1997-03-17 Procedure for designing an address and arrangement
FI971121 1997-03-17

Publications (2)

Publication Number Publication Date
WO1998042082A2 WO1998042082A2 (en) 1998-09-24
WO1998042082A3 true WO1998042082A3 (en) 1998-12-03

Family

ID=8548412

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1998/000225 WO1998042082A2 (en) 1997-03-17 1998-03-13 Method and arrangement for forming an address

Country Status (10)

Country Link
US (1) US6799021B1 (en)
EP (1) EP0968571B1 (en)
JP (1) JP2001517391A (en)
CN (1) CN1251228A (en)
AT (1) ATE422733T1 (en)
AU (1) AU741822B2 (en)
DE (1) DE69840540D1 (en)
FI (1) FI103306B (en)
NO (1) NO994494D0 (en)
WO (1) WO1998042082A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020180891A1 (en) * 2001-04-11 2002-12-05 Cyber Operations, Llc System and method for preconditioning analog video signals
GB0123494D0 (en) * 2001-09-28 2001-11-21 Roke Manor Research Polynormial pre-disorter
US7058369B1 (en) 2001-11-21 2006-06-06 Pmc-Sierra Inc. Constant gain digital predistortion controller for linearization of non-linear amplifiers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0240055A1 (en) * 1986-03-28 1987-10-07 AT&T NETWORK SYSTEMS NEDERLAND B.V. Arrangement for compensating for non-linear distortion in an input signal to be digitized and an echo cancelling system comprising such an arrangement
WO1997049174A1 (en) * 1996-06-19 1997-12-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Pre-distortion for a non-linear transmission path in the high frequency range

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
US4462001A (en) * 1982-02-22 1984-07-24 Canadian Patents & Development Limited Baseband linearizer for wideband, high power, nonlinear amplifiers
US5008741A (en) * 1989-04-07 1991-04-16 Tektronix, Inc. Method and apparatus for processing component signals to preserve high frequency intensity information
JPH0648844B2 (en) 1990-04-18 1994-06-22 大日本スクリーン製造株式会社 Image reader
IT1265271B1 (en) * 1993-12-14 1996-10-31 Alcatel Italia BASEBAND PREDISTRITORTION SYSTEM FOR THE ADAPTIVE LINEARIZATION OF POWER AMPLIFIERS
US5920596A (en) * 1995-01-31 1999-07-06 Motorola, Inc. Apparatus for amplifying a signal using a digital processor
JP3198864B2 (en) * 1995-03-09 2001-08-13 松下電器産業株式会社 Transmission device
US5650758A (en) * 1995-11-28 1997-07-22 Radio Frequency Systems, Inc. Pipelined digital predistorter for a wideband amplifier
US5732333A (en) * 1996-02-14 1998-03-24 Glenayre Electronics, Inc. Linear transmitter using predistortion
US5740520A (en) * 1996-04-03 1998-04-14 State Of Israel Channel correction transceiver
US5920808A (en) * 1996-12-12 1999-07-06 Glenayre Electronics, Inc. Method and apparatus for reducing key-up distortion by pre-heating transistors
US5923712A (en) * 1997-05-05 1999-07-13 Glenayre Electronics, Inc. Method and apparatus for linear transmission by direct inverse modeling
US5867065A (en) * 1997-05-07 1999-02-02 Glenayre Electronics, Inc. Frequency selective predistortion in a linear transmitter
US5900778A (en) * 1997-05-08 1999-05-04 Stonick; John T. Adaptive parametric signal predistorter for compensation of time varying linear and nonlinear amplifier distortion
US6285412B1 (en) * 1997-07-23 2001-09-04 Harris Corporation Adaptive pre-equalization apparatus for correcting linear distortion of a non-ideal data transmission system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0240055A1 (en) * 1986-03-28 1987-10-07 AT&T NETWORK SYSTEMS NEDERLAND B.V. Arrangement for compensating for non-linear distortion in an input signal to be digitized and an echo cancelling system comprising such an arrangement
WO1997049174A1 (en) * 1996-06-19 1997-12-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Pre-distortion for a non-linear transmission path in the high frequency range

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN; & JP,A,08 251 246 (MATSUSHITA ELECTRIC IND CO LTD) 27 Sept. 1996. *

Also Published As

Publication number Publication date
NO994494L (en) 1999-09-16
CN1251228A (en) 2000-04-19
FI971121A0 (en) 1997-03-17
JP2001517391A (en) 2001-10-02
FI103306B1 (en) 1999-05-31
DE69840540D1 (en) 2009-03-26
EP0968571A2 (en) 2000-01-05
ATE422733T1 (en) 2009-02-15
FI103306B (en) 1999-05-31
AU741822B2 (en) 2001-12-13
EP0968571B1 (en) 2009-02-11
NO994494D0 (en) 1999-09-16
WO1998042082A2 (en) 1998-09-24
FI971121A (en) 1998-09-18
US6799021B1 (en) 2004-09-28
AU6402898A (en) 1998-10-12

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