WO2021174463A1 - Dispositif de prédistorsion numérique et émetteur - Google Patents

Dispositif de prédistorsion numérique et émetteur Download PDF

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Publication number
WO2021174463A1
WO2021174463A1 PCT/CN2020/077839 CN2020077839W WO2021174463A1 WO 2021174463 A1 WO2021174463 A1 WO 2021174463A1 CN 2020077839 W CN2020077839 W CN 2020077839W WO 2021174463 A1 WO2021174463 A1 WO 2021174463A1
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WO
WIPO (PCT)
Prior art keywords
signal
digital
power
output
predistortion device
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Application number
PCT/CN2020/077839
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English (en)
Chinese (zh)
Inventor
程文昊
吴宏星
廖连贵
Original Assignee
海能达通信股份有限公司
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 海能达通信股份有限公司 filed Critical 海能达通信股份有限公司
Priority to PCT/CN2020/077839 priority Critical patent/WO2021174463A1/fr
Publication of WO2021174463A1 publication Critical patent/WO2021174463A1/fr

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    • 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
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • 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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)

Abstract

La présente invention concerne un dispositif de prédistorsion numérique et un émetteur. Le dispositif de prédistorsion numérique comporte un circuit numérique de conversion descendante, un circuit d'acquisition d'intensité de signal et un moyen de prédistorsion numérique. Le circuit numérique de conversion descendante est utilisé pour recevoir un premier signal de rétroaction et convertir le premier signal de rétroaction en un second signal de rétroaction, la fréquence du premier signal de rétroaction étant supérieure à celle du second signal de rétroaction. Le circuit d'acquisition d'intensité de signal est utilisé pour acquérir la puissance du second signal de rétroaction, le second signal de rétroaction comportant au moins deux signaux efficaces et une composante d'intermodulation entre les signaux efficaces. Le moyen de prédistorsion numérique est utilisé pour réaliser une prédistorsion en fonction de la puissance du second signal de rétroaction de façon à réduire la puissance d'un produit non linéaire dans un signal de sortie et à délivrer un premier signal à fréquence intermédiaire, le produit non linéaire étant la composante d'intermodulation entre les signaux efficaces. À l'aide des moyens décrits, la présente invention peut maintenir la puissance du produit non linéaire à un niveau bas pendant une longue durée, limiter efficacement le brouillage et améliorer les performances antibrouillage.
PCT/CN2020/077839 2020-03-04 2020-03-04 Dispositif de prédistorsion numérique et émetteur WO2021174463A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/077839 WO2021174463A1 (fr) 2020-03-04 2020-03-04 Dispositif de prédistorsion numérique et émetteur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/077839 WO2021174463A1 (fr) 2020-03-04 2020-03-04 Dispositif de prédistorsion numérique et émetteur

Publications (1)

Publication Number Publication Date
WO2021174463A1 true WO2021174463A1 (fr) 2021-09-10

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PCT/CN2020/077839 WO2021174463A1 (fr) 2020-03-04 2020-03-04 Dispositif de prédistorsion numérique et émetteur

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WO (1) WO2021174463A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116032315A (zh) * 2022-12-02 2023-04-28 珠海笛思科技有限公司 一种无源互调干扰信号处理方法及装置
CN116436539A (zh) * 2023-06-15 2023-07-14 中星联华科技（北京）有限公司 放大器非线性校准装置及方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100220810A1 (en) * 2009-03-02 2010-09-02 Cisco Technology, Inc. Transmitter Characterization for Digital Pre-Distortion Using Offset Preamble Subcarriers
CN102724153A (zh) * 2012-06-14 2012-10-10 京信通信技术(广州)有限公司 基于数字预失真的远端机及直放站系统
CN103281274A (zh) * 2013-04-25 2013-09-04 广州海格通信集团股份有限公司 一种数字预失真测量系统及其功率值定标测量方法
CN207706212U (zh) * 2017-12-29 2018-08-07 陕西烽火电子股份有限公司 一种短波数字预失真处理装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100220810A1 (en) * 2009-03-02 2010-09-02 Cisco Technology, Inc. Transmitter Characterization for Digital Pre-Distortion Using Offset Preamble Subcarriers
CN102724153A (zh) * 2012-06-14 2012-10-10 京信通信技术(广州)有限公司 基于数字预失真的远端机及直放站系统
CN103281274A (zh) * 2013-04-25 2013-09-04 广州海格通信集团股份有限公司 一种数字预失真测量系统及其功率值定标测量方法
CN207706212U (zh) * 2017-12-29 2018-08-07 陕西烽火电子股份有限公司 一种短波数字预失真处理装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116032315A (zh) * 2022-12-02 2023-04-28 珠海笛思科技有限公司 一种无源互调干扰信号处理方法及装置
CN116436539A (zh) * 2023-06-15 2023-07-14 中星联华科技（北京）有限公司 放大器非线性校准装置及方法
CN116436539B (zh) * 2023-06-15 2023-10-03 中星联华科技（北京）有限公司 放大器非线性校准装置及方法

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