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AR026863A1 - Metodo y aparato para estimar la relacion de senal a ruido de portadoras digitales en una disposicion de emision de audio digital compatible modulada en amplitud - Google Patents

Metodo y aparato para estimar la relacion de senal a ruido de portadoras digitales en una disposicion de emision de audio digital compatible modulada en amplitud

Info

Publication number
AR026863A1
AR026863A1 ARP000103163A ARP000103163A AR026863A1 AR 026863 A1 AR026863 A1 AR 026863A1 AR P000103163 A ARP000103163 A AR P000103163A AR P000103163 A ARP000103163 A AR P000103163A AR 026863 A1 AR026863 A1 AR 026863A1
Authority
AR
Argentina
Prior art keywords
snr
carriers
produce
estimate
signal
Prior art date
Application number
ARP000103163A
Other languages
English (en)
Original Assignee
Ibiquity Digital Corp
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 Ibiquity Digital Corp filed Critical Ibiquity Digital Corp
Publication of AR026863A1 publication Critical patent/AR026863A1/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Noise Elimination (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Error Detection And Correction (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

Un método para estimar la SNR para una pluralidad de portadoras moduladas con informacion digital, en el que dicha informacion digital incluye baudios dedatos y baudios de entrenamiento, que comprende las etapas de: recibir la pluralidad de portadora s; determinar una primera SNR para el baudio de datos,determinar una segunda SNR para el baudio de entrenamiento; comparar por lo menos una de dicha primera SNR y dicha segunda SNR a criterios de seleccionpredeterminadas; y seleccionar una de dicha p rimera SNR y de dicha segunda SNR en base a la etapa de comparacion. En la realizacion preferida, las portadorasson procesadas para producir una salida de compensador para cada una de las portadoras, y la salida del compensador es procesada para prod ucir una decision desímbolos para cada una de las portadoras. La salida del compensador es substraída de la decision de símbolos cuando un baudio de datos es recibido paraproducir un primer valor de diferencia, y el primer valor de diferencia es elev ado al cuadrado para producir una primera estimacion de senal al ruido. Lasalida del compensador es también substraída de datos de entrenamiento predeterminados cuando un baudio de entrenamiento es recibido para producir un segundovalor de diferencia , y el segundo valor de diferencia es elevado al cuadrado para producir una segunda estimacion de senal a ruido. También se incluye unaparato que efectua el método arriba senalado.
ARP000103163A 1999-06-24 2000-06-23 Metodo y aparato para estimar la relacion de senal a ruido de portadoras digitales en una disposicion de emision de audio digital compatible modulada en amplitud AR026863A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/339,362 US6532258B1 (en) 1999-06-24 1999-06-24 Method for estimating signal-to-noise ratio of digital carriers in an AM compatible digital audio broadcasting system

Publications (1)

Publication Number Publication Date
AR026863A1 true AR026863A1 (es) 2003-03-05

Family

ID=23328665

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP000103163A AR026863A1 (es) 1999-06-24 2000-06-23 Metodo y aparato para estimar la relacion de senal a ruido de portadoras digitales en una disposicion de emision de audio digital compatible modulada en amplitud

Country Status (13)

Country Link
US (1) US6532258B1 (es)
EP (1) EP1190511A1 (es)
JP (1) JP2003502937A (es)
KR (1) KR20020026466A (es)
CN (1) CN1173496C (es)
AR (1) AR026863A1 (es)
AU (1) AU5757900A (es)
BR (1) BR0011814A (es)
CA (1) CA2374182A1 (es)
MX (1) MXPA01013125A (es)
RU (1) RU2235435C2 (es)
TW (1) TW480850B (es)
WO (1) WO2000079710A1 (es)

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Also Published As

Publication number Publication date
JP2003502937A (ja) 2003-01-21
WO2000079710A1 (en) 2000-12-28
BR0011814A (pt) 2002-03-19
AU5757900A (en) 2001-01-09
TW480850B (en) 2002-03-21
EP1190511A1 (en) 2002-03-27
KR20020026466A (ko) 2002-04-10
US6532258B1 (en) 2003-03-11
CA2374182A1 (en) 2000-12-28
CN1358365A (zh) 2002-07-10
RU2235435C2 (ru) 2004-08-27
MXPA01013125A (es) 2002-06-04
CN1173496C (zh) 2004-10-27

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