CA2915645C - Methode d'estimation de la frequence de reponse de canaux multivoies - Google Patents

Methode d'estimation de la frequence de reponse de canaux multivoies Download PDF

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Publication number
CA2915645C
CA2915645C CA2915645A CA2915645A CA2915645C CA 2915645 C CA2915645 C CA 2915645C CA 2915645 A CA2915645 A CA 2915645A CA 2915645 A CA2915645 A CA 2915645A CA 2915645 C CA2915645 C CA 2915645C
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Prior art keywords
channel
multipath
impulse response
estimate
test sequence
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CA2915645A
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English (en)
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CA2915645A1 (fr
Inventor
Brian M. Berscheid
Tung T. Nguyen
Joseph E. Salt
Ha H. Nguyen
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Vecima Networks Inc
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Vecima Networks Inc
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Priority to CA2915645A priority Critical patent/CA2915645C/fr
Publication of CA2915645A1 publication Critical patent/CA2915645A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/46—Monitoring; Testing
    • H04B3/462—Testing group delay or phase shift, e.g. timing jitter
    • H04B3/466—Testing attenuation in combination with at least one of group delay and phase shift
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Dans un système de communication numérique, il existe une méthode destimation de canal OFDM qui considère conjointement les effets dune erreur de synchronisation grossière et de la propagation par trajets multiples. La méthode utilise une technique destimation itérative de canal, qui envisage le scénario possible dune erreur de synchronisation fractionnaire et de retards décho despace non échantillon. La méthode na pas besoin dinformations sur létat du canal comme une statistique de second ordre des réponses impulsionnelles ou de la puissance de bruit du canal. De plus, les erreurs de synchronisation peuvent être aisément obtenues avec la technique proposée. La simulation montre que, lorsquon compare les techniques destimation de canal OFDM sous les conditions de canal réalistes de la norme DOCSIS 3.1, lalgorithme proposé est bien plus performant que les méthodes traditionnelles.
CA2915645A 2015-12-21 2015-12-21 Methode d'estimation de la frequence de reponse de canaux multivoies Active CA2915645C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2915645A CA2915645C (fr) 2015-12-21 2015-12-21 Methode d'estimation de la frequence de reponse de canaux multivoies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2915645A CA2915645C (fr) 2015-12-21 2015-12-21 Methode d'estimation de la frequence de reponse de canaux multivoies

Publications (2)

Publication Number Publication Date
CA2915645A1 CA2915645A1 (fr) 2017-06-21
CA2915645C true CA2915645C (fr) 2020-07-21

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ID=59078337

Family Applications (1)

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CA2915645A Active CA2915645C (fr) 2015-12-21 2015-12-21 Methode d'estimation de la frequence de reponse de canaux multivoies

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CA (1) CA2915645C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111181877A (zh) * 2018-11-13 2020-05-19 联发科技股份有限公司 通讯接收装置及其信号处理方法

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Publication number Publication date
CA2915645A1 (fr) 2017-06-21

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