ID28977A - Metode dan radas untuk penentuan parameter prodistorsi dalam suatu modulator dengan mengukur daya keluaran - Google Patents
Metode dan radas untuk penentuan parameter prodistorsi dalam suatu modulator dengan mengukur daya keluaranInfo
- Publication number
- ID28977A ID28977A IDW00200101330A ID20011330A ID28977A ID 28977 A ID28977 A ID 28977A ID W00200101330 A IDW00200101330 A ID W00200101330A ID 20011330 A ID20011330 A ID 20011330A ID 28977 A ID28977 A ID 28977A
- Authority
- ID
- Indonesia
- Prior art keywords
- prodistor
- radas
- modulator
- parameters
- determining
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/38—Angle modulation by converting amplitude modulation to angle modulation
- H03C3/40—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated
- H03C3/406—Angle modulation by converting amplitude modulation to angle modulation using two signal paths the outputs of which have a predetermined phase difference and at least one output being amplitude-modulated using a feedback loop containing mixers or demodulators
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/16—Multiple-frequency-changing
- H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
- H03D7/166—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature using two or more quadrature frequency translation stages
- H03D7/168—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature using two or more quadrature frequency translation stages using a feedback loop containing mixers or demodulators
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- 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
- H03F1/3247—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using feedback acting on predistortion circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/36—Modulator circuits; Transmitter circuits
- H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
- H04L27/367—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
- H04L27/368—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion adaptive predistortion
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Transmitters (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/196,361 US6298096B1 (en) | 1998-11-19 | 1998-11-19 | Method and apparatus for determination of predistortion parameters for a quadrature modulator |
Publications (1)
Publication Number | Publication Date |
---|---|
ID28977A true ID28977A (id) | 2001-07-19 |
Family
ID=22725080
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IDW00200101330A ID28977A (id) | 1998-11-19 | 1999-11-17 | Metode dan radas untuk penentuan parameter prodistorsi dalam suatu modulator dengan mengukur daya keluaran |
Country Status (4)
Country | Link |
---|---|
US (1) | US6298096B1 (id) |
EP (1) | EP1131929A1 (id) |
ID (1) | ID28977A (id) |
WO (1) | WO2000031941A1 (id) |
Families Citing this family (51)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2791506B1 (fr) * | 1999-03-23 | 2001-06-22 | France Telecom | Emetteur radiofrequence a fort degre d'integration et avec annulation d'image, eventuellement auto-calibree |
GB2348755B (en) * | 1999-04-01 | 2001-03-07 | Wireless Systems Int Ltd | Signal processing |
US6658065B1 (en) * | 2000-02-29 | 2003-12-02 | Skyworks Solutions, Inc. | System of and method for reducing or eliminating the unwanted sideband in the output of a transmitter comprising a quadrature modulator followed by a translational loop |
US6868128B1 (en) * | 2000-07-05 | 2005-03-15 | Rfmd Wpan, Inc. | Method and apparatus for calibrating DC-offsets in a direct conversion receiver |
US7177372B2 (en) * | 2000-12-21 | 2007-02-13 | Jian Gu | Method and apparatus to remove effects of I-Q imbalances of quadrature modulators and demodulators in a multi-carrier system |
US7065154B2 (en) * | 2000-12-29 | 2006-06-20 | Nokia Corporation | Baseband predistortion method for multicarrier transmitters |
US7062231B2 (en) * | 2001-08-30 | 2006-06-13 | Mediatek Inc. | Direct modulation transmitter utilizing signals squaring |
DE10144907A1 (de) * | 2001-09-12 | 2003-04-03 | Infineon Technologies Ag | Sendeanordnung, insbesondere für den Mobilfunk |
EP1298791A1 (en) * | 2001-09-26 | 2003-04-02 | Sony International (Europe) GmbH | Direct-conversion receiver using quadrature error correction |
WO2003043206A2 (de) * | 2001-11-13 | 2003-05-22 | Infineon Technologies Ag | Sendeanordnung mit automatischem abgleich des quadraturmodulators |
DE60215608T2 (de) * | 2002-01-11 | 2007-08-30 | Mitsubishi Electric Information Technology Centre Europe B.V. | Vorverzerrungsverfahren für einen Mehrträger-CDMA-Aufwärtskanal |
EP1328071B1 (en) * | 2002-01-11 | 2006-07-19 | Mitsubishi Electric Information Technology Centre Europe B.V. | MC-CDMA uplink per carrier pre-distortion method |
US7362821B1 (en) | 2002-05-22 | 2008-04-22 | Marvel International Ltd. | Method and apparatus for amplifier linearization using adaptive predistortion |
US7085330B1 (en) | 2002-02-15 | 2006-08-01 | Marvell International Ltd. | Method and apparatus for amplifier linearization using adaptive predistortion |
JP3712985B2 (ja) * | 2002-02-22 | 2005-11-02 | アンリツ株式会社 | 直交変調器のキャリアリーク調整点検出方法、そのキャリアリーク調整方法、及び直交変調装置 |
US7346313B2 (en) | 2002-03-04 | 2008-03-18 | Cafarella John H | Calibration of I-Q balance in transceivers |
US7313198B2 (en) * | 2002-03-12 | 2007-12-25 | Motorola Inc. | Self calibrating transmit path correction system |
US6700453B2 (en) | 2002-06-18 | 2004-03-02 | Nokia Corporation | Amplitude imbalance compensation of quadrature modulator |
US6819720B1 (en) * | 2002-06-28 | 2004-11-16 | Nortel Networks Limited | Noise cancellation in a predistortion architecture |
US7092454B2 (en) * | 2002-08-14 | 2006-08-15 | Intel Corporation | Method and apparatus of compensating imbalance of a modulator |
US20040165678A1 (en) * | 2002-08-27 | 2004-08-26 | Zivi Nadiri | Method for measuring and compensating gain and phase imbalances in quadrature modulators |
TW200733582A (en) | 2002-11-15 | 2007-09-01 | Interdigital Tech Corp | Compensating for analog radio component impairments to relax specifications |
US7251290B2 (en) * | 2002-12-16 | 2007-07-31 | Nortel Networks Limited | Adaptive controller for linearization of transmitter |
US7333557B2 (en) * | 2002-12-16 | 2008-02-19 | Nortel Networks Limited | Adaptive controller for linearization of transmitter with impairments |
US7206557B2 (en) * | 2003-01-08 | 2007-04-17 | Lucent Technologies Inc. | Method and apparatus for suppressing local oscillator leakage in a wireless transmitter |
DE602004025561D1 (de) * | 2003-04-24 | 2010-04-01 | Nxp Bv | Quadraturmodulator und kalibrierungsverfahren dafür |
US6768434B1 (en) * | 2003-05-15 | 2004-07-27 | Tektronix, Inc. | High speed x/sine(x) correction circuit |
TWI236233B (en) * | 2003-12-26 | 2005-07-11 | Winbond Electronics Corp | Apparatus and method for detecting and compensating current offset |
DE602004007136T2 (de) * | 2004-09-24 | 2008-02-21 | Alcatel Lucent | Sender und Übertragungsverfahren |
US7288988B2 (en) * | 2005-04-13 | 2007-10-30 | Powerwave Technologies, Inc. | Adaptive predistortion linearized amplifier system employing selective sampling |
US7680176B2 (en) * | 2005-11-21 | 2010-03-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Simplified generalized rake receiver method and apparatus |
US7796960B1 (en) | 2006-04-04 | 2010-09-14 | Nortel Networks Limited | Signal transmitter linearization |
US8886341B1 (en) | 2006-04-04 | 2014-11-11 | Microsoft Corporation | Adaptive sample-by-sample controller for under-determined systems |
US8995502B1 (en) | 2006-04-04 | 2015-03-31 | Apple Inc. | Transceiver with spectral analysis |
US8498590B1 (en) | 2006-04-04 | 2013-07-30 | Apple Inc. | Signal transmitter linearization |
EP1850488B1 (fr) * | 2006-04-26 | 2009-10-07 | STMicroelectronics N.V. | Procédé de détection d'imperfections de la voie d'émission d'un dispositif radiofréquence du type à conversion directe et dispositif correspondant |
US8654885B2 (en) * | 2006-06-06 | 2014-02-18 | Qualcomm Incorporated | Fast in-phase and quadrature imbalance calibration |
US7844014B2 (en) * | 2006-07-07 | 2010-11-30 | Scintera Networks, Inc. | Pre-distortion apparatus |
WO2008030250A2 (en) * | 2006-09-07 | 2008-03-13 | William Marsh Rice University | Integrated embedded processor based laser spectroscopic sensor |
JP2010504678A (ja) | 2006-09-20 | 2010-02-12 | エヌエックスピー ビー ヴィ | 送信機のアナログi/q変調器をキャリブレーションするための方法およびシステム |
FR2914515B1 (fr) | 2007-04-02 | 2009-07-03 | St Microelectronics Sa | Calibration dans un module d'emission radio frequence |
US7856050B1 (en) * | 2007-08-15 | 2010-12-21 | L-3 Communications Titan Corporation | Receiver and transmitter calibration to compensate for frequency dependent I/Q imbalance |
US7795858B2 (en) * | 2007-12-18 | 2010-09-14 | Agilent Technologies, Inc. | Methods and apparatus for computing and using a spectral map for performing nonlinear calibration of a signal path |
JP5060532B2 (ja) * | 2008-09-10 | 2012-10-31 | 株式会社エヌ・ティ・ティ・ドコモ | べき級数型プリディストータ、べき級数型プリディストータの制御方法 |
US8406283B2 (en) * | 2009-07-20 | 2013-03-26 | Advantest Corporation | Modulation apparatus, test apparatus and correction method |
US8498591B1 (en) | 2009-08-21 | 2013-07-30 | Marvell International Ltd. | Digital Predistortion for nonlinear RF power amplifiers |
CN101789759B (zh) * | 2010-02-11 | 2012-12-26 | 北京无线电计量测试研究所 | 一种曲线拟合实现调制预畸变的方法 |
US8699620B1 (en) | 2010-04-16 | 2014-04-15 | Marvell International Ltd. | Digital Predistortion for nonlinear RF power amplifiers |
US9344143B2 (en) | 2012-07-24 | 2016-05-17 | Mediatek Inc. | Signal transmitting device and signal transmitting method |
US9025648B2 (en) * | 2013-02-22 | 2015-05-05 | Tektronix, Inc. | Measurement of DC offsets in IQ modulators |
US9160586B1 (en) | 2013-07-24 | 2015-10-13 | Marvell International Ltd. | Method and apparatus for estimating and compensating for in-phase and quadrature (IQ) mismatch in a receiver of a wireless communication device |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5049832A (en) * | 1990-04-20 | 1991-09-17 | Simon Fraser University | Amplifier linearization by adaptive predistortion |
JPH05130156A (ja) | 1991-11-08 | 1993-05-25 | Nec Corp | 直交変調器 |
JP2937624B2 (ja) | 1992-05-29 | 1999-08-23 | 日本電気株式会社 | ディジタル化直交変調用集積回路とその検査方法 |
DE69228816T2 (de) | 1992-10-28 | 1999-08-19 | Alcatel | Offsetgleichspannungskorrektur für Direktmisch-TDMA-Empfänger |
JP3420613B2 (ja) | 1993-06-30 | 2003-06-30 | 日本無線株式会社 | 直交変調器 |
US5524285A (en) | 1993-11-02 | 1996-06-04 | Wray; Anthony J. | Radio transmitter with power amplifier and linearization |
EP1111869A3 (en) | 1993-11-30 | 2002-09-04 | Nec Corporation | Linear transmitter for use in combination with radio communication systems |
US5604929A (en) | 1995-04-21 | 1997-02-18 | Rockwell International | System for correcting quadrature gain and phase errors in a direct conversion single sideband receiver independent of the character of the modulated signal |
FI98014C (fi) * | 1995-06-30 | 1997-03-25 | Nokia Mobile Phones Ltd | Kuutiointipiiri signaalin esisäröyttämiseksi |
FR2739239B1 (fr) | 1995-09-27 | 1997-11-14 | Alcatel Telspace | Dispositif de correction d'un defaut de quadrature d'un modulateur en quadrature et/ou d'un demodulateur d'un signal a pluralite d'etats de phase, emetteur et recepteur correspondants |
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 |
US6072364A (en) * | 1997-06-17 | 2000-06-06 | Amplix | Adaptive digital predistortion for power amplifiers with real time modeling of memoryless complex gains |
-
1998
- 1998-11-19 US US09/196,361 patent/US6298096B1/en not_active Expired - Fee Related
-
1999
- 1999-11-17 EP EP99959022A patent/EP1131929A1/en not_active Withdrawn
- 1999-11-17 WO PCT/US1999/027256 patent/WO2000031941A1/en not_active Application Discontinuation
- 1999-11-17 ID IDW00200101330A patent/ID28977A/id unknown
Also Published As
Publication number | Publication date |
---|---|
WO2000031941A1 (en) | 2000-06-02 |
US6298096B1 (en) | 2001-10-02 |
EP1131929A1 (en) | 2001-09-12 |
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