CN101044676A - Method and equipment of simulating predistortion linearization - Google Patents

Method and equipment of simulating predistortion linearization Download PDF

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Publication number
CN101044676A
CN101044676A CN 200480044206 CN200480044206A CN101044676A CN 101044676 A CN101044676 A CN 101044676A CN 200480044206 CN200480044206 CN 200480044206 CN 200480044206 A CN200480044206 A CN 200480044206A CN 101044676 A CN101044676 A CN 101044676A
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CN
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Application
Patent type
Prior art keywords
signal
exponent
predistortion
simulating
method
Prior art date
Application number
CN 200480044206
Other languages
Chinese (zh)
Other versions
CN100525079C (en )
Inventor
茹洪涛
Original Assignee
中兴通讯股份有限公司
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Classifications

    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F1/00Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03FAMPLIFIERS
    • H03F1/00Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3282Acting on the phase and the amplitude of the input signal

Abstract

A method of simulating predistortion linearization, includes: adjust the input signal's amplitude, and convert the frequency to the intermediate frequency or low frequency; produce predistortion signal; add the said predistortion signal to the input signal to transmit together, which has been delay matching processed; distortion detect the transmission signal, and adaptation optimize the predistortion signal's amplitude and phase parameter. The invention eliminates non-linearity produced by transmission channel or device by means of producing simulation (3) exponent, (5) exponent, (7) exponent even much higher exponent predistortion signal, and adaptation adjust by the output distortion detection. The invention is easy realizable and producible, and has low cost.

Description

PCT国内申请,说明书已公开。 PCT national application, the specification has been made public.

Claims (1)

  1. PCT国内申请,权利要求书已公开。 PCT national application, the claims have been disclosed.
CN 200480044206 2004-12-28 2004-12-28 Method and equipment of simulating predistortion linearization CN100525079C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2004/001542 WO2006069477A1 (en) 2004-12-28 2004-12-28 A method and equipment of simulating predistortion linearization

Publications (2)

Publication Number Publication Date
CN101044676A true true CN101044676A (en) 2007-09-26
CN100525079C CN100525079C (en) 2009-08-05

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ID=36614452

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200480044206 CN100525079C (en) 2004-12-28 2004-12-28 Method and equipment of simulating predistortion linearization

Country Status (2)

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CN (1) CN100525079C (en)
WO (1) WO2006069477A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101958861A (en) * 2010-09-21 2011-01-26 苏州锐调科技有限公司 Virtual image inhibiting method and circuit
CN103746951B (en) * 2014-01-09 2017-01-18 上海晨思电子科技有限公司 A signal processing method and apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI105366B (en) 1997-10-29 2000-07-31 Nokia Networks Oy Linearization method and the amplifier arrangement
EP1249930A3 (en) * 2001-04-10 2004-06-02 Matsushita Electric Industrial Co., Ltd. Predistortion linearizer and predistortion compensation method and program
CN1166053C (en) 2001-05-08 2004-09-08 华为技术有限公司 Adaptive RF digital pre-distortion linearization method and circuit
FR2833431B1 (en) 2001-12-06 2004-12-17 Cit Alcatel Predistortion linearizer has wide frequency band

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101958861A (en) * 2010-09-21 2011-01-26 苏州锐调科技有限公司 Virtual image inhibiting method and circuit
CN101958861B (en) 2010-09-21 2013-08-07 何伟 Virtual image inhibiting method and circuit
CN103746951B (en) * 2014-01-09 2017-01-18 上海晨思电子科技有限公司 A signal processing method and apparatus

Also Published As

Publication number Publication date Type
CN100525079C (en) 2009-08-05 grant
WO2006069477A1 (en) 2006-07-06 application

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Date Code Title Description
C06 Publication
C10 Request of examination as to substance
C14 Granted