CN105745641A - 一种曲线拟合电路、模拟预失真器和射频信号发射机 - Google Patents
一种曲线拟合电路、模拟预失真器和射频信号发射机 Download PDFInfo
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- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
- H03F1/3247—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using feedback acting on predistortion circuits
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
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- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
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- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/32—Modifications of amplifiers to reduce non-linear distortion
- H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
- H03F1/3258—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits based on polynomial terms
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- H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
- H03F3/245—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages with semiconductor devices only
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Abstract
本发明实施例提供了一种曲线拟合电路、模拟预失真器和射频信号发射机,用以解决在射频信号分解时采用现有的多项式拟合经常会用到高阶多项式,所导致的拟合结果对高次项系数和量化噪声都非常敏感的问题。该曲线拟合电路中的每个分段处理电路,按照预设规则截取接收到的输入信号中的一部分,以及根据截取的部分生成待处理信号,并采用多项式拟合的方法根据所述待处理信号生成q个输出信号;不同分段处理电路截取的部分不完全相同;每个第一加法电路,接收各个分段处理电路的q个输出信号中的一个信号,并根据接收到的n个信号之和得到所述曲线拟合电路的一个输出信号;不同第一加法电路接收同一个分段处理电路的q个输出信号中的不同输出信号。
Description
PCT国内申请,说明书已公开。
Claims (11)
- PCT国内申请,权利要求书已公开。
Applications Claiming Priority (1)
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PCT/CN2014/090095 WO2016065633A1 (zh) | 2014-10-31 | 2014-10-31 | 一种曲线拟合电路、模拟预失真器和射频信号发射机 |
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CN105745641A true CN105745641A (zh) | 2016-07-06 |
CN105745641B CN105745641B (zh) | 2019-02-19 |
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US (1) | US10141896B2 (zh) |
EP (1) | EP3197045B1 (zh) |
JP (1) | JP6442053B2 (zh) |
KR (1) | KR101926665B1 (zh) |
CN (1) | CN105745641B (zh) |
WO (1) | WO2016065633A1 (zh) |
Families Citing this family (16)
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US9590668B1 (en) | 2015-11-30 | 2017-03-07 | NanoSemi Technologies | Digital compensator |
EP3523856A4 (en) | 2016-10-07 | 2020-06-24 | NanoSemi, Inc. | DIGITAL BEAM ORIENTATION PREDISTORSION |
BR112019015265A2 (pt) | 2017-01-25 | 2020-04-14 | Huawei Tech Co Ltd | método e dispositivo de processamento de sinal |
JP2020511822A (ja) | 2017-02-25 | 2020-04-16 | ナノセミ, インク.Nanosemi, Inc. | マルチバンド・デジタル・プリディストータ |
US10141961B1 (en) | 2017-05-18 | 2018-11-27 | Nanosemi, Inc. | Passive intermodulation cancellation |
US10581470B2 (en) | 2017-06-09 | 2020-03-03 | Nanosemi, Inc. | Linearization system |
US10931318B2 (en) * | 2017-06-09 | 2021-02-23 | Nanosemi, Inc. | Subsampled linearization system |
US11115067B2 (en) | 2017-06-09 | 2021-09-07 | Nanosemi, Inc. | Multi-band linearization system |
WO2019014422A1 (en) | 2017-07-12 | 2019-01-17 | Nanosemi, Inc. | SYSTEMS AND METHODS FOR CONTROLLING RADIOS MADE WITH DIGITAL PREDISTORSION |
US11303251B2 (en) | 2017-10-02 | 2022-04-12 | Nanosemi, Inc. | Digital predistortion adjustment based on determination of load condition characteristics |
US10644657B1 (en) | 2018-05-11 | 2020-05-05 | Nanosemi, Inc. | Multi-band digital compensator for a non-linear system |
EP3791470A1 (en) | 2018-05-11 | 2021-03-17 | Nanosemi, Inc. | Digital compensator for a non-linear system |
US10763904B2 (en) | 2018-05-25 | 2020-09-01 | Nanosemi, Inc. | Digital predistortion in varying operating conditions |
US10931238B2 (en) | 2018-05-25 | 2021-02-23 | Nanosemi, Inc. | Linearization with envelope tracking or average power tracking |
US11863210B2 (en) | 2018-05-25 | 2024-01-02 | Nanosemi, Inc. | Linearization with level tracking |
US10992326B1 (en) | 2020-05-19 | 2021-04-27 | Nanosemi, Inc. | Buffer management for adaptive digital predistortion |
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2014
- 2014-10-31 KR KR1020177012917A patent/KR101926665B1/ko active IP Right Grant
- 2014-10-31 WO PCT/CN2014/090095 patent/WO2016065633A1/zh active Application Filing
- 2014-10-31 EP EP14904793.8A patent/EP3197045B1/en active Active
- 2014-10-31 CN CN201480024986.4A patent/CN105745641B/zh active Active
- 2014-10-31 JP JP2017523242A patent/JP6442053B2/ja active Active
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- 2017-04-28 US US15/581,823 patent/US10141896B2/en active Active
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CN101068431A (zh) * | 2007-06-11 | 2007-11-07 | 北京天碁科技有限公司 | 一种射频校准的方法及装置 |
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Publication number | Publication date |
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JP6442053B2 (ja) | 2018-12-19 |
EP3197045B1 (en) | 2018-09-19 |
EP3197045A1 (en) | 2017-07-26 |
US20170302233A1 (en) | 2017-10-19 |
KR101926665B1 (ko) | 2018-12-07 |
KR20170070156A (ko) | 2017-06-21 |
CN105745641B (zh) | 2019-02-19 |
JP2017532914A (ja) | 2017-11-02 |
EP3197045A4 (en) | 2017-07-26 |
WO2016065633A1 (zh) | 2016-05-06 |
US10141896B2 (en) | 2018-11-27 |
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