ES2050819T3 - Control automatico de ganancia digital. - Google Patents

Control automatico de ganancia digital.

Info

Publication number
ES2050819T3
ES2050819T3 ES89312183T ES89312183T ES2050819T3 ES 2050819 T3 ES2050819 T3 ES 2050819T3 ES 89312183 T ES89312183 T ES 89312183T ES 89312183 T ES89312183 T ES 89312183T ES 2050819 T3 ES2050819 T3 ES 2050819T3
Authority
ES
Spain
Prior art keywords
agc
signal
dynamic range
receiver
level
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
ES89312183T
Other languages
English (en)
Inventor
James Frank Michael Kepler
David Edward Borth
Frank Joseph Cerny Jr
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 ES2050819T3 publication Critical patent/ES2050819T3/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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/40—TPC being performed in particular situations during macro-diversity or soft handoff
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver
    • H03G3/3078—Circuits generating control signals for digitally modulated signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/52—TPC using AGC [Automatic Gain Control] circuits or amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Circuits Of Receivers In General (AREA)
  • Glass Compositions (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Abstract

SE PROVEE UN METODO PARA EL CONTROL DIGITAL AUTOMATICO DE LA GANANCIA (CAG) EN UN RECEPTOR PROVISTO DE UN RANGO DINAMICO LIMITADO, EN PARTICUALAR PARA SEÑALES DISCONTINUAS. EL METODO SE CARACTERIZA POR EL HECHO DE QUE DETECTA EL NIVEL DE UNA SEÑAL RECIBIDA Y DE CAG, COMPARANDO EL NIVEL DEL LA SEÑAL CAG CON EL RENGO DINAMICO DEL RECEPTOR, Y AJUSTANDO EL CAG PARA ESTABLECER UNA RELACION DESEADA ENTRE LA SEÑAL CAG Y LA LIMITACION DEL RANGO DINAMICO. TAMBIEN SE PROVEE UN METODO DE MANOS SUELTAS EN UN SISTEMA DE TRANSMISION TIPO CELULAR TDMA QUE UTILIZA ESTE METODO DE CONTROL AG. EL METODO PARA EL CONTROL AUTOMATICO DE GANANCIA (CAG) DE LAS SEÑALES DISCONTINUAS EN UN RECEPTOR PROVISTO DE RANGO DINAMICO LIMITADO SE CARACTERIZA ADICIONALMENTE POR EL HECHO DE QUE: DIGITALIZANDO (A/D) UNA SEÑAL DISCONTINUA RECIBIDA CAG Y CONVIRTIENDO LAS MUESTRAS DIGITALIZADAS EN MUESTRAS DE POTENCIA PARA CAPTAR LA POTENCIA Y DETECTAR EL NIVEL DE LA SEÑAL, COMPARANDO EL NIVEL DE LA SEÑAL CAG CON RESPECTO AL RANGO DINAMICO DEL RECEPTOR; Y AJUSTANDO POR APROXIMACION YA SEA ATENUANDO PROGRESIVAMENTE LA SEÑAL HASTA QUE ENTRE EN EL RANGO DINAMICO DEL RECEPTOR O AMPLIFICANDO PROGRESIVAMENTE LA GANANCIA DE LA SEÑAL HASTA QUE ENTRE DENTRO DEL RANGO DINAMICO LIMITADO DEL RECEPTOR Y FINALMENTE AJUSTANDO EL CAG DE LA SEÑAL RECIBIDA HASTA QUE SE LOGRE UNA UTILIZACION OPTIMA DEL RANGO DINAMICO (BIEN QUE) DE LAS ETAPAS DE PROCESAMIENTO DE LA SEÑAL DE APROXIMADAMENTE 6-12 DB POR DEBAJO DEL MAXIMO PARA ESTABLECER UNA RELACION DESEADA ENTRE LA SEÑAL CAG Y LA LIMITACION DEL RANGO DINAMICO.
ES89312183T 1988-11-30 1989-11-23 Control automatico de ganancia digital. Expired - Lifetime ES2050819T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27805188A 1988-11-30 1988-11-30

Publications (1)

Publication Number Publication Date
ES2050819T3 true ES2050819T3 (es) 1994-06-01

Family

ID=23063490

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89312183T Expired - Lifetime ES2050819T3 (es) 1988-11-30 1989-11-23 Control automatico de ganancia digital.

Country Status (17)

Country Link
EP (1) EP0371700B1 (es)
JP (1) JP2580873B2 (es)
KR (1) KR930007134B1 (es)
CN (1) CN1014200B (es)
AT (1) ATE103750T1 (es)
CA (1) CA2000785C (es)
DD (1) DD292787A5 (es)
DE (1) DE68914262T2 (es)
DK (1) DK101591D0 (es)
ES (1) ES2050819T3 (es)
IE (1) IE64560B1 (es)
IL (1) IL91947A (es)
MX (1) MX171680B (es)
MY (1) MY105777A (es)
PT (1) PT92433B (es)
TR (1) TR24905A (es)
WO (1) WO1990006644A1 (es)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8915172D0 (en) * 1989-07-01 1989-08-23 Orbitel Mobile Communications Receiver gain control for radio telephone system
WO1991017606A1 (en) * 1990-04-27 1991-11-14 Motorola, Inc. Digital automatic gain control
CA2066711C (en) * 1990-08-24 1996-09-03 Randall Wayne Rich Dual mode automatic gain control
US5187809A (en) * 1990-08-24 1993-02-16 Motorola, Inc. Dual mode automatic gain control
JP2861631B2 (ja) 1992-05-06 1999-02-24 日本電気株式会社 Ｆｓｋ受信機
JPH05327378A (ja) * 1992-05-22 1993-12-10 Toshiba Corp 無線通信装置の自動利得制御回路
FR2699768B1 (fr) * 1992-12-23 1995-02-10 Alcatel Radiotelephone Procédé de contrôle automatique de gain pour un récepteur numérique, notamment un récepteur à accès multiple à répartition dans le temps et dispositif pour sa mise en Óoeuvre.
US5565932A (en) * 1994-11-08 1996-10-15 Zenith Electronics Corp. AGC system with pilot using digital data reference
AU7325496A (en) * 1995-11-10 1997-05-29 Ionica International Limited Method and apparatus for power control in a telephone system
CA2232754A1 (en) * 1996-09-05 1998-03-12 Mitsubishi Denki Kabushiki Kaisha Gain control method and receiver
JP2002519997A (ja) * 1998-04-23 2002-07-02 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Ｉｆ受信機
BR9916512A (pt) 1998-12-24 2001-09-04 Ericsson Telefon Ab L M Aparelho em um receptor em um sistema de comunicação, processo de processamento de sinais recebidos na estação base em um sistema de rádio, telefone celular, e, sistema de comunicação
DE10050330A1 (de) * 2000-10-11 2002-04-25 Infineon Technologies Ag Signalstärkeausgleich für stark zeitvariante Mobilfunkkanäle
EP1231721A1 (en) * 2001-02-12 2002-08-14 Telefonaktiebolaget Lm Ericsson Method for controlling receive signal levels at a network node in TDMA point to multi-point radio communications systems
GB2392328B (en) * 2002-08-20 2006-03-01 Nokia Corp Gain control circuit
US7885627B2 (en) * 2003-07-07 2011-02-08 Advanced Micro Devices, Inc. Optimal initial gain selection for wireless receiver
CN100367781C (zh) * 2006-04-24 2008-02-06 上海交通大学 数字自动电平增益的控制方法
EP2045916B1 (en) * 2007-10-01 2014-12-17 JDS Uniphase Corporation Automatic gain control stress measurement for digital carriers
CN104135299B (zh) * 2014-07-18 2016-10-19 中国电子科技集团公司第四十一研究所 一种双通道两级变频宽带接收机及其自动增益控制方法
CN105071875A (zh) * 2015-08-26 2015-11-18 天津大学 一种场强测量系统及其测量方法
CN113596980B (zh) * 2021-09-14 2023-04-25 四川安迪科技实业有限公司 Mf-tdma返向链路接收机模拟agc的数字控制方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2520952A1 (fr) * 1982-02-03 1983-08-05 Trt Telecom Radio Electr Dispositif de controle automatique de gain (cag) a action rapide
CA1209661A (en) * 1983-08-05 1986-08-12 Thomas M. Cairns Miniature electrical terminal for low energy electronic circuits
JPS60145713A (ja) * 1984-01-10 1985-08-01 Fujitsu Ltd 自動利得制御方式
US4613990A (en) * 1984-06-25 1986-09-23 At&T Bell Laboratories Radiotelephone transmission power control
DE3540722C2 (de) * 1985-11-16 1995-06-29 Daimler Benz Aerospace Ag Verfahren zur automatischen Pegelregelung
JPS62216511A (ja) * 1986-03-18 1987-09-24 Nec Corp 自動利得制御装置
US4696027A (en) * 1986-08-01 1987-09-22 Motorola, Inc. Handoff apparatus and method with interference reduction for a radio system

Also Published As

Publication number Publication date
PT92433A (pt) 1990-05-31
KR900702682A (ko) 1990-12-08
JPH04502541A (ja) 1992-05-07
KR930007134B1 (ko) 1993-07-30
MX171680B (es) 1993-11-10
CN1014200B (zh) 1991-10-02
DE68914262D1 (de) 1994-05-05
PT92433B (pt) 1995-09-12
CA2000785C (en) 1994-10-25
IE64560B1 (en) 1995-08-23
EP0371700A3 (en) 1992-02-26
ATE103750T1 (de) 1994-04-15
DE68914262T2 (de) 1994-08-11
DK101591A (da) 1991-05-28
IL91947A0 (en) 1990-06-10
MY105777A (en) 1995-01-30
CA2000785A1 (en) 1990-05-31
WO1990006644A1 (en) 1990-06-14
IE893260L (en) 1990-05-30
CN1043236A (zh) 1990-06-20
DD292787A5 (de) 1991-08-08
DK101591D0 (da) 1991-05-28
EP0371700A2 (en) 1990-06-06
IL91947A (en) 1994-02-27
JP2580873B2 (ja) 1997-02-12
EP0371700B1 (en) 1994-03-30
TR24905A (tr) 1992-07-20

Similar Documents

Publication Publication Date Title
ES2050819T3 (es) Control automatico de ganancia digital.
MY112135A (en) Method and apparatus for automatic gain control in a digital receiver
EP0231721A3 (en) Automatic gain control for hearing aid
CA2166239A1 (en) Speech Presence Detector and Method Therefor
CA2006803A1 (en) Range limiting system for differentiating received signals
EP0392132A3 (en) Radio transceiver apparatus with booster
DE3276599D1 (en) Speech processing system
NZ241663A (en) Optical-to-electric conversion: gain controlled optical amplifier
EP0875989A3 (en) Automatic gain control circuit
ES548892A0 (es) Perfeccionamientos en un circuito para generar un criterio de recepcion o no recepcion de senales en un receptor ina- lambrico
ES8707055A1 (es) Dispositivo para demodulacion de canales auxiliares de baja frecuencia en sistemas de transmision digital
GB2253314A (en) Dual mode automatic gain control
WO2002045259A3 (en) Signal level control
DK90291A (da) Fremgangsmaade til regulering af en modtagers foelsomhed
JPS57133734A (en) Detection circuit for signal interruption
JPS57196650A (en) Multi-value transmission system
FR2662836B1 (fr) Detecteur volumetrique de mouvement pour la protection, notamment d'automobiles.
JPS5710472A (en) Ftc circuit in radar and similar device
JPH0348946U (es)
DE3687752D1 (de) Mobiler funkempfaenger.
JPS58117082A (ja) 信号処理回路
JPS6434029A (en) Method and device for receiving optical signal of heterodyne detection system
JPS56137720A (en) Receiving circuit for amplitude-modulated wave
KR970063909A (ko) 자동 이득조절장치
JPS54156457A (en) Automatic gain control circuit

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 371700

Country of ref document: ES