ES2114558T3 - Compensacion de intermodulacion en un receptor. - Google Patents

Compensacion de intermodulacion en un receptor.

Info

Publication number
ES2114558T3
ES2114558T3 ES92905432T ES92905432T ES2114558T3 ES 2114558 T3 ES2114558 T3 ES 2114558T3 ES 92905432 T ES92905432 T ES 92905432T ES 92905432 T ES92905432 T ES 92905432T ES 2114558 T3 ES2114558 T3 ES 2114558T3
Authority
ES
Spain
Prior art keywords
receiver
signal
gain factor
intermodulation
frequency
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES92905432T
Other languages
English (en)
Inventor
Kenneth B Riordan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Application granted granted Critical
Publication of ES2114558T3 publication Critical patent/ES2114558T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/001—Digital control of analog signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • 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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • 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
    • H04B1/06—Receivers
    • H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
    • H04B1/109—Means associated with receiver for limiting or suppressing noise or interference by improving strong signal performance of the receiver when strong unwanted signals are present at the receiver input

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Noise Elimination (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Circuits Of Receivers In General (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

UN RECEPTOR (200) QUE AUTOMATICAMENTE COMPENSA LA INTERMODULACION DE UNA SEÑAL DE ENTRADA. AL RECEPTOR (200) LE PRECEDE UN EXTREMO DELANTERO DE RECEPCION (105) QUE SE ENCUENTRA ACOPLADO A UNAS ANTENAS (100-102) QUE RECIBEN LA SEÑAL. LA GANANCIA DE LAS ANTENAS PARA EL TRAYECTO/LA FRECUENCIA SE CALIBRA Y ALMACENA PARA TODAS LAS COMBINACIONES DE TRAYECTO/FRECUENCIA DE LAS ANTENAS. CUANDO SE RECIBE UNA SEÑAL, EL RECEPTOR (200) DETERMINA EL FACTOR DE GANANCIA CORRECTO ALMACENADO QUE REPRESENTA A LA ANTENA QUE RECIBE LA SEÑAL Y LA FRECUENCIA DE LA SEÑAL. EL FACTOR DE GANANCIA SE COMPARA CON UN UMBRAL PREDETERMINADO Y, SI EL FACTOR DE GANANCIA ES MAYOR QUE EL UMBRAL, SE INTRODUCE UN ATENUADOR (400) QUE SE ENCUENTRA COLOCADO EN LA PARTE DELANTERA DEL RECEPTOR (200) PARA OPTIMIZAR LA INTERMODULACION DE LA SEÑAL. SI EL FACTOR DE GANANCIA ES MENOR QUE EL UMBRAL, SE PONE EL ATENUADOR (400) EN DERIVACION PARA OPTIMIZAR LA SENSIBILIDAD DEL RECEPTOR (200).
ES92905432T 1991-01-16 1992-01-08 Compensacion de intermodulacion en un receptor. Expired - Lifetime ES2114558T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/642,102 US5170392A (en) 1991-01-16 1991-01-16 Intermodulation compensation in a receiver

Publications (1)

Publication Number Publication Date
ES2114558T3 true ES2114558T3 (es) 1998-06-01

Family

ID=24575227

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92905432T Expired - Lifetime ES2114558T3 (es) 1991-01-16 1992-01-08 Compensacion de intermodulacion en un receptor.

Country Status (14)

Country Link
US (1) US5170392A (es)
EP (1) EP0569504B1 (es)
JP (1) JPH06504663A (es)
KR (1) KR970000795B1 (es)
CN (1) CN1024976C (es)
AU (1) AU655805B2 (es)
BR (1) BR9205515A (es)
CA (1) CA2098993C (es)
DE (1) DE69225064T2 (es)
ES (1) ES2114558T3 (es)
MX (1) MX9200188A (es)
MY (1) MY107207A (es)
NZ (1) NZ241301A (es)
WO (1) WO1992013408A1 (es)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5321847A (en) * 1991-07-26 1994-06-14 Motorola, Inc. Apparatus and method for detecting intermodulation distortion in a radio frequency receiver
US5740523A (en) * 1993-06-30 1998-04-14 Shintom Co., Ltd. Radio receiver
JP2727948B2 (ja) * 1993-12-28 1998-03-18 日本電気株式会社 無線選択呼出受信機
GB9418754D0 (en) * 1994-09-16 1994-11-02 Ionica L3 Limited Telecommunications receiver
US5697081A (en) * 1995-09-12 1997-12-09 Oki Telecom, Inc. Intermodulation distortion reduction circuit utilizing variable attenuation
US5761614A (en) * 1996-03-22 1998-06-02 Ericsson Inc. Automated system and method for optimizing receive system performance
JP3225837B2 (ja) * 1996-04-19 2001-11-05 松下電器産業株式会社 高周波信号受信装置
US5907798A (en) * 1996-06-21 1999-05-25 Lucent Technologies Inc. Wireless telephone intermodulation performance enhancement techniques
US6236863B1 (en) 1997-03-31 2001-05-22 Oki Telecom, Inc. Comprehensive transmitter power control system for radio telephones
JP3666535B2 (ja) * 1997-05-09 2005-06-29 ソニー株式会社 受信機用ｉｃ
KR100222404B1 (ko) 1997-06-21 1999-10-01 윤종용 혼변조 왜곡 성분을 억압하는 수신장치 및 방법
US6075997A (en) * 1997-11-03 2000-06-13 Telefonaktiebolaget L M Ericsson (Publ) Automatic configuration of antenna near parts equipment
JP3615065B2 (ja) * 1998-11-04 2005-01-26 ソニー株式会社 無線通信システム及び端末装置
EP1126628A1 (en) * 2000-02-17 2001-08-22 Sony Corporation Wireless communications system and terminal device
US20050164659A1 (en) * 2001-11-27 2005-07-28 Infineon Technologies Ag Apparatus and method for correcting sudden phase changes in received signals in mobile stations
DE10158079A1 (de) * 2001-11-27 2003-06-12 Infineon Technologies Ag Vorrichtung und Verfahren zur Korrektur von Phasensprüngen in Empfangssignalen von Mobilstationen
US7127211B2 (en) * 2002-02-21 2006-10-24 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for reduced intermodulation distortion in a radio transceiver
US6794938B2 (en) * 2002-03-19 2004-09-21 The University Of North Carolina At Charlotte Method and apparatus for cancellation of third order intermodulation distortion and other nonlinearities
US20050239427A1 (en) * 2002-08-20 2005-10-27 Mitsubishi Denki Kabushiki Kaisha Gain control method, gain controller, receiver having the gain controller, and mobile telephone
KR100615535B1 (ko) * 2004-07-26 2006-08-25 삼성전자주식회사 Ａｇｃ를 이용한 무선 수신장치 및 수신방법
US7596355B2 (en) * 2004-11-29 2009-09-29 Intel Corporation System and method capable of closed loop MIMO calibration
US8606321B2 (en) * 2009-04-09 2013-12-10 Alcatel Lucent High-selectivity low noise receiver front end
US8634766B2 (en) 2010-02-16 2014-01-21 Andrew Llc Gain measurement and monitoring for wireless communication systems
US9883451B2 (en) * 2015-05-14 2018-01-30 Qualcomm Incorporated Detection techniques for high gain mobile devices

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4222118A (en) * 1978-07-31 1980-09-09 The United States Of America As Represented By The Secretary Of The Navy Intelligent automatic gain control circuit
JPS5544225A (en) * 1978-09-25 1980-03-28 Nec Corp Time sharing gain adjustment circuit
JPS5643809A (en) * 1979-09-19 1981-04-22 Hitachi Ltd Automatic gain controller
DE3613048A1 (de) * 1986-04-17 1987-10-22 Bosch Gmbh Robert Mobiler funkempfaenger
US5029162A (en) * 1990-03-06 1991-07-02 Confertech International Automatic gain control using root-mean-square circuitry in a digital domain conference bridge for a telephone network

Also Published As

Publication number Publication date
EP0569504A4 (en) 1993-09-15
EP0569504B1 (en) 1998-04-08
DE69225064D1 (de) 1998-05-14
NZ241301A (en) 1995-03-28
WO1992013408A1 (en) 1992-08-06
CN1065763A (zh) 1992-10-28
CN1024976C (zh) 1994-06-08
BR9205515A (pt) 1994-04-19
MY107207A (en) 1995-10-31
JPH06504663A (ja) 1994-05-26
MX9200188A (es) 1992-07-01
AU655805B2 (en) 1995-01-12
EP0569504A1 (en) 1993-11-18
AU1320592A (en) 1992-08-27
DE69225064T2 (de) 1998-10-08
US5170392A (en) 1992-12-08
KR970000795B1 (ko) 1997-01-20
CA2098993C (en) 1995-12-12
KR930703763A (ko) 1993-11-30

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