GB0521056D0 - Communications system - Google Patents

Communications system

Info

Publication number
GB0521056D0
GB0521056D0 GB0521056A GB0521056A GB0521056D0 GB 0521056 D0 GB0521056 D0 GB 0521056D0 GB 0521056 A GB0521056 A GB 0521056A GB 0521056 A GB0521056 A GB 0521056A GB 0521056 D0 GB0521056 D0 GB 0521056D0
Authority
GB
United Kingdom
Prior art keywords
communications system
communications
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.)
Granted
Application number
GB0521056A
Other versions
GB2431322A (en
GB2431322B (en
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.)
University of Westminster
Original Assignee
University of Westminster
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 University of Westminster filed Critical University of Westminster
Priority to GB0521056A priority Critical patent/GB2431322B/en
Publication of GB0521056D0 publication Critical patent/GB0521056D0/en
Priority to PCT/GB2006/003837 priority patent/WO2007045843A2/en
Publication of GB2431322A publication Critical patent/GB2431322A/en
Application granted granted Critical
Publication of GB2431322B publication Critical patent/GB2431322B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • H04L27/2649—Demodulators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3818—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers
    • H04L27/3827—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers in which the carrier is recovered using only the demodulated baseband signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3845—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier
    • H04L27/3854—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier using a non - coherent carrier, including systems with baseband correction for phase or frequency offset
    • H04L27/3863—Compensation for quadrature error in the received signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0016—Stabilisation of local oscillators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03057—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure
    • H04L25/0307—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure using blind adaptation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain
GB0521056A 2005-10-17 2005-10-17 Communications system Expired - Fee Related GB2431322B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0521056A GB2431322B (en) 2005-10-17 2005-10-17 Communications system
PCT/GB2006/003837 WO2007045843A2 (en) 2005-10-17 2006-10-17 Correction of quadrature mismatch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0521056A GB2431322B (en) 2005-10-17 2005-10-17 Communications system

Publications (3)

Publication Number Publication Date
GB0521056D0 true GB0521056D0 (en) 2005-11-23
GB2431322A GB2431322A (en) 2007-04-18
GB2431322B GB2431322B (en) 2008-03-26

Family

ID=35451864

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0521056A Expired - Fee Related GB2431322B (en) 2005-10-17 2005-10-17 Communications system

Country Status (2)

Country Link
GB (1) GB2431322B (en)
WO (1) WO2007045843A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2509303A (en) 2012-11-08 2014-07-02 Miller Int Ltd Coupler

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0660559B1 (en) * 1993-12-22 2005-04-27 Koninklijke Philips Electronics N.V. Multicarrier frequency-hopping communication system
US6442217B1 (en) * 2000-05-22 2002-08-27 Sicom, Inc. Digital communication receiver with digital, IF, I-Q balancer
US20030231726A1 (en) * 2002-06-12 2003-12-18 Andreas Schuchert Arrangement and method for frequency domain compensation of OFDM signals with IQ imbalance
WO2005029798A1 (en) * 2003-09-15 2005-03-31 Intel Corporation Adaptive iq imbalance correction for multicarrier wireless communication systems

Also Published As

Publication number Publication date
WO2007045843A3 (en) 2007-07-12
GB2431322A (en) 2007-04-18
WO2007045843A8 (en) 2007-08-23
GB2431322B (en) 2008-03-26
WO2007045843A2 (en) 2007-04-26

Similar Documents

Publication Publication Date Title
GB0504579D0 (en) Communications system
TWI371937B (en) Communication system
HK1113443A1 (en) Communication system
EP1949756A4 (en) Communication system
GB2416959B (en) Communications systems
GB0500223D0 (en) Communication system
GB2427792B (en) Wireless communications system
EP1861942A4 (en) Communications systems
EP1859558A4 (en) Communications systems
GB2426893B (en) Wireless communications system
GB2425440B (en) Wireless communications system
GB2414891B (en) Communications system
GB2423901B (en) Communication system
GB0720747D0 (en) Communications system
GB0508035D0 (en) Communications system
PL1583311T3 (en) Communications system
GB0419492D0 (en) Communications system
GB2419499B (en) Communications system
GB0507759D0 (en) Communications systems
GB2431322B (en) Communications system
GB0618640D0 (en) Communication system
GB0504894D0 (en) Communication system
GB2440377B (en) Communications system
GB2427981B (en) Wireless communications system
GB0419302D0 (en) Communications systems

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20131017