AR017547A1 - Un medio de control para una disposicion de control cartesiano de senales cartesianas de entrada y senales cartesianas de realimentacion detelecomunicaciones, un ajustador de fase para dicho medio de control, una disposicion de control cartesiano que incorpora dicho medio de control, y un metodopara - Google Patents
Un medio de control para una disposicion de control cartesiano de senales cartesianas de entrada y senales cartesianas de realimentacion detelecomunicaciones, un ajustador de fase para dicho medio de control, una disposicion de control cartesiano que incorpora dicho medio de control, y un metodoparaInfo
- Publication number
- AR017547A1 AR017547A1 ARP980105521A ARP980105521A AR017547A1 AR 017547 A1 AR017547 A1 AR 017547A1 AR P980105521 A ARP980105521 A AR P980105521A AR P980105521 A ARP980105521 A AR P980105521A AR 017547 A1 AR017547 A1 AR 017547A1
- Authority
- AR
- Argentina
- Prior art keywords
- control
- cartesian
- signals
- provision
- phase
- Prior art date
Links
Classifications
-
- 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
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/08—Modifications of modulator to linearise modulation, e.g. by feedback, and clearly applicable to more than one type of modulator
-
- 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
- H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
- H03F1/3229—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction
-
- 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
- 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
- H03F1/3282—Acting on the phase and the amplitude of the input signal
-
- 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
- H03F1/3294—Acting on the real and imaginary components of the input signal
-
- 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
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
- H03F1/345—Negative-feedback-circuit arrangements with or without positive feedback using hybrid or directional couplers
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/57—Separate feedback of real and complex signals being present
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
- H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
- H03F2201/3231—Adaptive predistortion using phase feedback from the output of the main amplifier
Abstract
Un medio de control para una disposicion de control cartesiano de senales cartesianas de entrada y senales cartesianas de realimentacion de comunicaciones,que comprende un rotador de fase (50) y un ajustador de fase (52). También se propone unajusta dor de fase para dicho medio de control y una disposicion decontrol cartesiano, que es incondicionalmente estable con respecto a la no alineacion de fase, independientemente de los cambios de potencia de entrada, latemperatura y elenvejecimiento de los componentes. No hay que imponer determinadas condiciones al sistema de control para garantizar la estabilidad, es decir,el sistema no es intruso y no requiere calibracion fuera de línea. La inclusion del rotador de fase (50) ylas técnicas de aju ste de fase en el sistema decontrol cartesiano lo hacen posible. Por ultimo, se propone un método para control de realimentacion cartesiano lineal que utiliza dicho medio de control.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9704011A SE512623C2 (sv) | 1997-11-03 | 1997-11-03 | Förfarande och anordning i ett telekommunikationsproblem |
Publications (1)
Publication Number | Publication Date |
---|---|
AR017547A1 true AR017547A1 (es) | 2001-09-12 |
Family
ID=20408840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP980105521A AR017547A1 (es) | 1997-11-03 | 1998-11-03 | Un medio de control para una disposicion de control cartesiano de senales cartesianas de entrada y senales cartesianas de realimentacion detelecomunicaciones, un ajustador de fase para dicho medio de control, una disposicion de control cartesiano que incorpora dicho medio de control, y un metodopara |
Country Status (12)
Country | Link |
---|---|
US (1) | US6351677B1 (es) |
EP (1) | EP1027769B1 (es) |
JP (1) | JP4016372B2 (es) |
KR (1) | KR100665455B1 (es) |
CN (1) | CN1168201C (es) |
AR (1) | AR017547A1 (es) |
AU (1) | AU749268B2 (es) |
DE (1) | DE69831874T2 (es) |
EE (1) | EE04573B1 (es) |
SE (1) | SE512623C2 (es) |
TW (1) | TW427054B (es) |
WO (1) | WO1999023756A1 (es) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2352570B (en) * | 1999-07-28 | 2003-12-24 | Wireless Systems Int Ltd | Distortion reduction |
SE519596C2 (sv) | 1999-10-29 | 2003-03-18 | Ericsson Telefon Ab L M | Metod och apparat för att styra fasen i en lineariserad elektronisk förstärkare |
JP2002009557A (ja) * | 2000-06-21 | 2002-01-11 | Matsushita Electric Ind Co Ltd | 線形補償増幅装置 |
US6934341B2 (en) | 2000-08-29 | 2005-08-23 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for plurality signal generation |
US7236757B2 (en) * | 2001-07-11 | 2007-06-26 | Vativ Technologies, Inc. | High-speed multi-channel communications transceiver with inter-channel interference filter |
US20030112896A1 (en) * | 2001-07-11 | 2003-06-19 | Raghavan Sreen A. | Multi-channel communications transceiver |
US7295623B2 (en) * | 2001-07-11 | 2007-11-13 | Vativ Technologies, Inc. | High-speed communications transceiver |
EP1361655A1 (en) * | 2002-05-07 | 2003-11-12 | Semiconductor Ideas to The Market (ItoM) BV | Mirror suppression circuit in a quadrature demodulator |
US7010278B2 (en) * | 2002-10-25 | 2006-03-07 | Freescale Semiconductor, Inc. | Sideband suppression method and apparatus for quadrature modulator using magnitude measurements |
NZ524630A (en) * | 2003-03-07 | 2005-10-28 | Tait Electronics Ltd | Phase & envelope generation in an EER system |
DE10316559A1 (de) * | 2003-04-10 | 2004-11-18 | Rohde & Schwarz Ftk Gmbh | Rückkopplungslinearisierte Sendereinrichtung |
US7388904B2 (en) * | 2003-06-03 | 2008-06-17 | Vativ Technologies, Inc. | Near-end, far-end and echo cancellers in a multi-channel transceiver system |
US20050200408A1 (en) * | 2004-03-15 | 2005-09-15 | Benjamin James A. | Method and apparatus for feed forward linearization of wideband RF amplifiers |
US7382834B2 (en) * | 2004-05-06 | 2008-06-03 | Beceem Communications Inc. | Phase rotation estimation |
US7113037B2 (en) * | 2004-07-14 | 2006-09-26 | Raytheon Company | Performing remote power amplifier linearization |
DE102005002207A1 (de) * | 2004-11-26 | 2006-06-01 | Rohde & Schwarz Gmbh & Co. Kg | Verfahren und System zur Ermittlung der Amplitude und/oder Phase des Ausgangssignals eines Übertragungsgliedes in Abhängigkeit der Amplitude des Eingangsignals |
DE102005037880A1 (de) * | 2005-05-19 | 2006-11-23 | Rohde & Schwarz Gmbh & Co. Kg | Verfahren und System zur Ermittlung der Amplitude und/oder Phase des Ausgangssignals eines Übertragungsgliedes in Abhängigkeit der Amplitude des Eingangssignals |
JP4299819B2 (ja) * | 2005-08-17 | 2009-07-22 | 富士通株式会社 | 歪補償装置及び歪補償方法 |
US20070160168A1 (en) | 2006-01-11 | 2007-07-12 | Beukema Troy J | Apparatus and method for signal phase control in an integrated radio circuit |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4885551A (en) * | 1988-10-31 | 1989-12-05 | American Telephone And Telegraph Company At&T Bell Laboratories | Feed forward linear amplifier |
US4943783A (en) * | 1989-07-31 | 1990-07-24 | Nippon Telegraph And Telephone Corporation | Feed forward distortion correction circuit |
GB2238197A (en) | 1989-11-16 | 1991-05-22 | Motorola Inc | Feed-forward amplifier with amplitude and phase pre-correction |
US5134718A (en) | 1990-10-31 | 1992-07-28 | Motorola, Inc. | Fast phase shift adjusting method and device for linear transmitter |
GB9209982D0 (en) * | 1992-05-08 | 1992-06-24 | British Tech Group | Method and apparatus for amplifying modulating and demodulating |
SE470455B (sv) * | 1992-08-24 | 1994-04-11 | Ericsson Telefon Ab L M | Anordning för kompensering av fasvridningen i återkopplingsslingan vid en kartesiskt återkopplad effektförstärkare |
US5420536A (en) * | 1993-03-16 | 1995-05-30 | Victoria University Of Technology | Linearized power amplifier |
GB9320078D0 (en) | 1993-09-29 | 1993-11-17 | Linear Modulation Tech | Cartesian amplifier power control and related applications |
GB2293935B (en) | 1994-10-03 | 1999-07-14 | Linear Modulation Tech | Automatic calibration of carrier suppression and loop phase in a cartesian amplifier |
JP2967699B2 (ja) * | 1995-03-06 | 1999-10-25 | 日本電気株式会社 | 送信装置 |
US5650758A (en) * | 1995-11-28 | 1997-07-22 | Radio Frequency Systems, Inc. | Pipelined digital predistorter for a wideband amplifier |
US5862460A (en) * | 1996-09-13 | 1999-01-19 | Motorola, Inc. | Power control circuit for a radio frequency transmitter |
-
1997
- 1997-11-03 SE SE9704011A patent/SE512623C2/sv not_active IP Right Cessation
-
1998
- 1998-11-03 WO PCT/SE1998/001991 patent/WO1999023756A1/en active IP Right Grant
- 1998-11-03 EE EEP200000280A patent/EE04573B1/xx not_active IP Right Cessation
- 1998-11-03 TW TW087118263A patent/TW427054B/zh not_active IP Right Cessation
- 1998-11-03 AU AU10583/99A patent/AU749268B2/en not_active Ceased
- 1998-11-03 JP JP2000519507A patent/JP4016372B2/ja not_active Expired - Lifetime
- 1998-11-03 EP EP98953135A patent/EP1027769B1/en not_active Expired - Lifetime
- 1998-11-03 DE DE69831874T patent/DE69831874T2/de not_active Expired - Lifetime
- 1998-11-03 AR ARP980105521A patent/AR017547A1/es unknown
- 1998-11-03 CN CNB988128896A patent/CN1168201C/zh not_active Expired - Fee Related
- 1998-11-03 US US09/184,973 patent/US6351677B1/en not_active Expired - Lifetime
- 1998-11-03 KR KR1020007004811A patent/KR100665455B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN1285974A (zh) | 2001-02-28 |
SE9704011L (sv) | 1999-05-04 |
TW427054B (en) | 2001-03-21 |
EE200000280A (et) | 2001-08-15 |
KR100665455B1 (ko) | 2007-01-04 |
US6351677B1 (en) | 2002-02-26 |
KR20010031746A (ko) | 2001-04-16 |
AU749268B2 (en) | 2002-06-20 |
EE04573B1 (et) | 2005-12-15 |
SE9704011D0 (sv) | 1997-11-03 |
EP1027769B1 (en) | 2005-10-12 |
WO1999023756A1 (en) | 1999-05-14 |
EP1027769A1 (en) | 2000-08-16 |
SE512623C2 (sv) | 2000-04-10 |
DE69831874D1 (de) | 2006-02-23 |
JP4016372B2 (ja) | 2007-12-05 |
AU1058399A (en) | 1999-05-24 |
CN1168201C (zh) | 2004-09-22 |
JP2001522188A (ja) | 2001-11-13 |
DE69831874T2 (de) | 2006-07-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AR017547A1 (es) | Un medio de control para una disposicion de control cartesiano de senales cartesianas de entrada y senales cartesianas de realimentacion detelecomunicaciones, un ajustador de fase para dicho medio de control, una disposicion de control cartesiano que incorpora dicho medio de control, y un metodopara | |
DE60042157D1 (de) | Halbleiterlaser mit einem sättigbaren bragg-refektorspiegel | |
WO2005062090A3 (en) | High energy photonic arbitrary waveform source | |
DE60108174D1 (de) | Leistungsskalierbare wellenleiterverstärker- und laserbauelemente | |
DE69521157T2 (de) | Polarisationsselektiver Halbleiterlaser, Lichtsender und optisches Kommunikationssystem unter Verwendung dieses Lasers | |
WO2002084821A3 (en) | Sources of, and methods for generating, optical pulses | |
DE69607493T2 (de) | Polarisationsmodenselektiver Halbleiterlaser, Modulationsverfahren und optisches Kommunikationssystem unter Verwendung dieses Lasers | |
EP0331303A3 (en) | Second harmonic generation | |
WO2007036933A3 (en) | High power fiber laser | |
WO2007037243A1 (ja) | THz波発生装置 | |
CA2199510A1 (en) | Optical Device | |
EP0928079A4 (en) | OPTICAL TRANSMITTER | |
GR3007801T3 (es) | ||
DE69507347T2 (de) | Polarisationsselektiver Halbleiterlaser, Lichtsender, und optisches Kommunikationssystem unter Verwendung dieses Lasers | |
CA2143593A1 (en) | Optical Frequency Translator | |
ITTO940104A1 (it) | Procedimento per la generazione di impulsi ottici ultracorti. | |
EP0985954B1 (en) | Saturable absorber based optical inverter | |
KR970022375A (ko) | 광섬유 스트레인 분포 측정용 펄스광과 프로브광의 비트 주파수 안정화장치 | |
Serkland et al. | Rate multiplication of a 59-GHz soliton source at 1550 nm | |
Lee et al. | Subharmonic pulse-gating in self-seeded laser diodes for time-and wavelength-interleaved picosecond pulse generation | |
Mahgerefteh et al. | All-optical 1.5 μm to 1.3 μm wavelength conversion in a walk-off compensating nonlinear optical loop mirror | |
EP0813273A3 (en) | Lasers | |
CN109149344A (zh) | 一种利用激光差频实现超短脉冲中波红外激光输出的脉冲同步的系统 | |
DK133693A (da) | Tætningsliste, f.eks. til beklædning eller låge af el-tavle | |
JP2002062514A (ja) | 多波長発生器 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FB | Suspension of granting procedure |