ES2148767T3 - Recepcion de señales de radio frecuencia utilizando desplazamiento de frecuencias por conversion descendente de sub-muestreo de tiempo discreto. - Google Patents

Recepcion de señales de radio frecuencia utilizando desplazamiento de frecuencias por conversion descendente de sub-muestreo de tiempo discreto.

Info

Publication number
ES2148767T3
ES2148767T3 ES96918262T ES96918262T ES2148767T3 ES 2148767 T3 ES2148767 T3 ES 2148767T3 ES 96918262 T ES96918262 T ES 96918262T ES 96918262 T ES96918262 T ES 96918262T ES 2148767 T3 ES2148767 T3 ES 2148767T3
Authority
ES
Spain
Prior art keywords
frequency
discrete
sampling
channel
frequencies
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
ES96918262T
Other languages
English (en)
Inventor
David H Shen
Chien-Meen Hwang
Bruce B Lusignan
Bruce A Wooley
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.)
Leland Stanford Junior University
Original Assignee
Leland Stanford Junior University
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 Leland Stanford Junior University filed Critical Leland Stanford Junior University
Application granted granted Critical
Publication of ES2148767T3 publication Critical patent/ES2148767T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
    • H04B1/0007—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
    • H04B1/0025—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage using a sampling rate lower than twice the highest frequency component of the sampled signal
    • 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
    • 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
    • H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
    • 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
    • H04B1/16—Circuits
    • H04B1/26—Circuits for superheterodyne receivers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

UN RECEPTOR DE COMUNICACIONES DE RF PERMITE UNA MAYOR INTEGRACION DE CHIPS ESTANDAR DE SILICONA Y CONSUME MENOS ENERGIA QUE LOS RECEPTORES ANTERIORES. LAS TECNICAS DE PROCESADO DE SEÑALES POR SUB-MUESTREO Y TIEMPO-DISCRETO SE USAN PARA CONVERTIR A BAJA FRECUENCIA, FILTRAR, AMPLIFICAR, Y SELECCIONAR UN CANAL DE RF ANALOGICO DESEADO. UN CIRCUITO DE MUESTREOY-RETENCION (81) SUB-MUESTREA EL CANAL DE RF ANALOGICO DESEADO DE FRECUENCIA PORTADORA FC, POR TANTO CONVIRTIENDOLO-A-BAJA EN UNA SEÑAL DE IMAGEN DE TIEMPO-DISCRETO DE FRECUENCIA FI. SUCESIVOS MUESTREOS-A-BAJA, (99. 1) FILTRADO DE ANTI-ALIAS, (95. 1) Y AMPLIFICACION DE LA SEÑAL DE IMAGEN DE TIEMPO-DISCRETO PRODUCEN UNA SEÑAL DE TIEMPO-DISCRETO DE BAJA FRECUENCIA CONTENIENDO UN CANAL CONVERTIDO-A-BAJA DE FRECUENCIA FK. LA SEÑAL DE TIEMPO-DISCRETO DE BAJA-FRECUENCIA ENTONCES SE DIGITALIZA, (87) SE FILTRA, (91) Y DEMODULA (93) PARA REVELAR SU CONTENIDO DE INFORMACION DE BANDA BASE.
ES96918262T 1995-06-06 1996-06-06 Recepcion de señales de radio frecuencia utilizando desplazamiento de frecuencias por conversion descendente de sub-muestreo de tiempo discreto. Expired - Lifetime ES2148767T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/468,280 US5640698A (en) 1995-06-06 1995-06-06 Radio frequency signal reception using frequency shifting by discrete-time sub-sampling down-conversion

Publications (1)

Publication Number Publication Date
ES2148767T3 true ES2148767T3 (es) 2000-10-16

Family

ID=23859178

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96918262T Expired - Lifetime ES2148767T3 (es) 1995-06-06 1996-06-06 Recepcion de señales de radio frecuencia utilizando desplazamiento de frecuencias por conversion descendente de sub-muestreo de tiempo discreto.

Country Status (8)

Country Link
US (1) US5640698A (es)
EP (1) EP0813770B1 (es)
AT (1) ATE192000T1 (es)
AU (1) AU700076B2 (es)
DE (1) DE69607836T2 (es)
DK (1) DK0813770T3 (es)
ES (1) ES2148767T3 (es)
WO (1) WO1996039750A1 (es)

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Publication number Publication date
EP0813770B1 (en) 2000-04-19
AU6096196A (en) 1996-12-24
DE69607836D1 (de) 2000-05-25
US5640698A (en) 1997-06-17
ATE192000T1 (de) 2000-05-15
DE69607836T2 (de) 2000-10-19
EP0813770A1 (en) 1997-12-29
WO1996039750A1 (en) 1996-12-12
AU700076B2 (en) 1998-12-17
DK0813770T3 (da) 2000-07-31
EP0813770A4 (es) 1997-12-29

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