DE602004029808D1 - Verbesserung von signalen - Google Patents

Verbesserung von signalen

Info

Publication number
DE602004029808D1
DE602004029808D1 DE602004029808T DE602004029808T DE602004029808D1 DE 602004029808 D1 DE602004029808 D1 DE 602004029808D1 DE 602004029808 T DE602004029808 T DE 602004029808T DE 602004029808 T DE602004029808 T DE 602004029808T DE 602004029808 D1 DE602004029808 D1 DE 602004029808D1
Authority
DE
Germany
Prior art keywords
signal
elements
amplitude
unwanted
window function
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.)
Active
Application number
DE602004029808T
Other languages
English (en)
Inventor
Michael Richard Richardson
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.)
BAE Systems PLC
Original Assignee
BAE Systems PLC
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 BAE Systems PLC filed Critical BAE Systems PLC
Publication of DE602004029808D1 publication Critical patent/DE602004029808D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/267—Phased-array testing or checking devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/08—Speed or phase control by synchronisation signals the synchronisation signals recurring cyclically
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0602—Systems characterised by the synchronising information used
    • H04J3/0605—Special codes used as synchronising signal
    • H04J3/0608—Detectors therefor, e.g. correlators, state machines
    • 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
    • H04L27/2614—Peak power aspects
    • H04L27/2623—Reduction thereof by clipping
    • H04L27/2624—Reduction thereof by clipping by soft clipping
DE602004029808T 2003-11-21 2004-11-19 Verbesserung von signalen Active DE602004029808D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0327041.0A GB0327041D0 (en) 2003-11-21 2003-11-21 Apparatus and methods
PCT/GB2004/004905 WO2005053191A1 (en) 2003-11-21 2004-11-19 Enhancing signals

Publications (1)

Publication Number Publication Date
DE602004029808D1 true DE602004029808D1 (de) 2010-12-09

Family

ID=29764162

Family Applications (3)

Application Number Title Priority Date Filing Date
DE602004028394T Active DE602004028394D1 (de) 2003-11-21 2004-11-19 Signalstörungsmessung
DE602004029808T Active DE602004029808D1 (de) 2003-11-21 2004-11-19 Verbesserung von signalen
DE602004006530T Active DE602004006530T2 (de) 2003-11-21 2004-11-19 Signalregeneration

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE602004028394T Active DE602004028394D1 (de) 2003-11-21 2004-11-19 Signalstörungsmessung

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE602004006530T Active DE602004006530T2 (de) 2003-11-21 2004-11-19 Signalregeneration

Country Status (8)

Country Link
US (5) US7907684B2 (de)
EP (5) EP1685664B1 (de)
AT (3) ATE486418T1 (de)
AU (5) AU2004310544B2 (de)
DE (3) DE602004028394D1 (de)
ES (4) ES2353080T3 (de)
GB (1) GB0327041D0 (de)
WO (5) WO2005053175A1 (de)

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Also Published As

Publication number Publication date
EP1685654A1 (de) 2006-08-02
WO2005053190A1 (en) 2005-06-09
US7894557B2 (en) 2011-02-22
AU2004310536A1 (en) 2005-06-09
DE602004006530T2 (de) 2008-01-10
WO2005053175A1 (en) 2005-06-09
WO2005053191A1 (en) 2005-06-09
ES2435517T3 (es) 2013-12-20
WO2005053094A1 (en) 2005-06-09
AU2004310537B2 (en) 2009-08-13
DE602004006530D1 (de) 2007-06-28
AU2004310544A1 (en) 2005-06-09
US20060165158A1 (en) 2006-07-27
US20060209998A1 (en) 2006-09-21
EP1685664A1 (de) 2006-08-02
EP1685653B1 (de) 2007-05-16
EP1685623A1 (de) 2006-08-02
ES2347932T3 (es) 2010-11-25
WO2005053174A1 (en) 2005-06-09
EP1685654B1 (de) 2013-09-25
AU2004310536B2 (en) 2009-07-16
ATE486418T1 (de) 2010-11-15
US8085886B2 (en) 2011-12-27
US7606337B2 (en) 2009-10-20
EP1685664B1 (de) 2010-07-28
EP1685653A1 (de) 2006-08-02
AU2004310539A1 (en) 2005-06-09
AU2004310539B2 (en) 2009-08-06
AU2004310534A1 (en) 2005-06-09
DE602004028394D1 (de) 2010-09-09
US20050262178A1 (en) 2005-11-24
EP1685665A1 (de) 2006-08-02
ES2353080T3 (es) 2011-02-25
US7907684B2 (en) 2011-03-15
GB0327041D0 (en) 2003-12-24
ATE362676T1 (de) 2007-06-15
US20050272392A1 (en) 2005-12-08
US20050250451A1 (en) 2005-11-10
EP1685665B1 (de) 2010-10-27
AU2004310537A1 (en) 2005-06-09
ATE476023T1 (de) 2010-08-15
AU2004310544B2 (en) 2009-08-13
ES2286696T3 (es) 2007-12-01

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