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1. WO2011059139 - PROCEDE DE NORMALISATION DE PASSE-BANDE PAR CONVERSION DE BANDE LATERALE UNIQUE

Numéro de publication WO/2011/059139
Date de publication 19.05.2011
N° de la demande internationale PCT/KR2010/000489
Date du dépôt international 27.01.2010
CIB
H04B 1/16 2006.01
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
BTRANSMISSION
1Détails des systèmes de transmission, non couverts par l'un des groupes H04B3/-H04B13/124; Détails des systèmes de transmission non caractérisés par le milieu utilisé pour la transmission
06Récepteurs
16Circuits
H03M 1/12 2006.01
HÉLECTRICITÉ
03CIRCUITS ÉLECTRONIQUES FONDAMENTAUX
MCODAGE, DÉCODAGE OU CONVERSION DE CODE, EN GÉNÉRAL
1Conversion analogique/numérique; Conversion numérique/analogique
12Convertisseurs analogiques/numériques
CPC
H04B 1/0025
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details 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
0003Software-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
0007wherein the AD/DA conversion occurs at radiofrequency or intermediate frequency stage
0025using a sampling rate lower than twice the highest frequency component of the sampled signal
H04B 1/0032
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details 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
0003Software-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
0028wherein the AD/DA conversion occurs at baseband stage
0032with analogue quadrature frequency conversion to and from the baseband
Déposants
  • 고려대학교 산학협력단 KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION [KR]/[KR] (AllExceptUS)
  • 박진우 PARK, Jinwoo [KR]/[KR] (UsOnly)
  • 강충구 KANG, Chung Gu [KR]/[KR] (UsOnly)
Inventeurs
  • 박진우 PARK, Jinwoo
  • 강충구 KANG, Chung Gu
Mandataires
  • 전종학 JEON, Jong Hag
Données relatives à la priorité
10-2009-010808610.11.2009KR
Langue de publication coréen (KO)
Langue de dépôt coréen (KO)
États désignés
Titre
(EN) BANDPASS STANDARDIZATION METHOD THROUGH SINGLE SIDEBAND CONVERSION
(FR) PROCEDE DE NORMALISATION DE PASSE-BANDE PAR CONVERSION DE BANDE LATERALE UNIQUE
(KO) 단측파대 변환을 통한 대역통과 표본화 방법
Abrégé
(EN)
The present invention relates to a bandpass standardization method through single sideband conversion, which can increase the efficiency of bandpass standardization in a bandpass standardization process where an RF signal is down-converted and positioned in a baseband, by converting an RF signal into a single sideband signal spectrum and then performing bandpass standardization thereon. To this end, a plurality of RF bandpass signals are converted into signals having a single sideband spectrum before the RF bandpass signals are subjected to bandpass standardization, the conversion being achieved by removing one of the upper and lower end sideband spectra of each RF bandpass signal. As a result, the problem of frequency overlap during down-conversion can be relieved, and this can lower the standard frequency and lower a necessary ADC performance level. As such, the price of ADC design or of a corresponding part may be reduced, and diverse signals can be processed at a low digital data rate.
(FR)
L'invention concerne un procédé de normalisation de passe-bande par conversion de bande latérale unique, susceptible d'augmenter l'efficacité de la normalisation de passe-bande dans un processus de normalisation de passe-bande dans lequel un signal RF converti à la baisse et positionné dans une bande de base, par conversion d'un signal RF en spectre de signaux à bande latérale unique, puis exécution de la normalisation de passe-bande. A cette fin, plusieurs signaux de passe-bande RF sont convertis en signaux ayant un spectre à bande latérale unique avant que les signaux de passe-bande RF soient soumis à la normalisation de passe-bande, la conversion étant obtenue par élimination d'un des spectres à bande latérale d'extrémités supérieure et inférieure de chaque signal de passe-bande RF. Il en résulte que le problème du chevauchement de fréquence pendant la conversion à la baisse peut être résolu, ce qui peut abaisser la fréquence standard ainsi que le niveau de performance CAN nécessaire. Ainsi, le prix de la conception CAN ou d'une partie correspondante peut être réduit, et divers signaux peuvent être traités à un débit de données numériques inférieur.
(KO)
본 발명은 RF 신호를 하향변환하여 기저대역에 위치시키는 대역통과 표본화 과정에서 RF 신호를 단측파대 신호 스펙트럼으로 변환한 후 대역통과 표본화를 실시하도록 함으로써 대역통과 표본화의 효율성을 높일 수 있도록 한 단측파대 변환을 통한 대역통과 표본화 방법에 관한 것으로, 이를 위하여 다수의 RF 대역통과 신호를 대역통과 표본화 시키기 전에 RF 대역통과 신호가 갖는 두 개의 상단 및 하단 측파대 스펙트럼 중 하나를 제거하여 단측파대 스펙트럼을 가지는 신호로 변환시키도록 함으로써 하향 변환 시 주파수 겹침 문제를 완화하여 표본화 주파수를 낮출 수 있고 그로 인해 요구되는 ADC의 성능을 낮출 수 있어 ADC 설계 또는 해당 부품가격의 하락뿐만 아니라 낮은 디지털 데이터 속도로 다양한 신호 처리가 가능하게 되는 효과가 있다.
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