TW200627835A - Blind signal separation using signal path selection - Google Patents

Blind signal separation using signal path selection

Info

Publication number
TW200627835A
TW200627835A TW094133239A TW94133239A TW200627835A TW 200627835 A TW200627835 A TW 200627835A TW 094133239 A TW094133239 A TW 094133239A TW 94133239 A TW94133239 A TW 94133239A TW 200627835 A TW200627835 A TW 200627835A
Authority
TW
Taiwan
Prior art keywords
source signals
signal separation
different summations
blind
blind signal
Prior art date
Application number
TW094133239A
Other languages
Chinese (zh)
Other versions
TWI281795B (en
Inventor
Steven J Goldberg
Original Assignee
Interdigital Tech 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
Priority claimed from US11/233,316 external-priority patent/US7190308B2/en
Application filed by Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of TW200627835A publication Critical patent/TW200627835A/en
Application granted granted Critical
Publication of TWI281795B publication Critical patent/TWI281795B/en

Links

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A communications device for separating source signals provided by M signal sources includes an antenna array comprising N elements for forming at least N antenna beams for receiving at least N different summations of the M source signals, with N and M being greater than 2. A controller is connected to the antenna array for selectively forming the at least N antenna beams. A blind signal separation processor forms a mixing matrix comprising up to the at least N different summations of the M source signals. The blind signal separation processor also determines if the different summations of the M source signals are correlated or statistically independent, and if not, then cooperates with the controller for forming different beams for receiving new different summations of the M source signals to replace the different summations of the M source signals that are not correlated or statistically independent in the mixing matrix. The desired source signals are separated from the mixing matrix by the blind signal separation processor.
TW094133239A 2004-09-23 2005-09-23 Blind signal separation using signal path selection TWI281795B (en)

Applications Claiming Priority (18)

Application Number Priority Date Filing Date Title
US61255004P 2004-09-23 2004-09-23
US61246904P 2004-09-23 2004-09-23
US61263204P 2004-09-23 2004-09-23
US61254604P 2004-09-23 2004-09-23
US61255104P 2004-09-23 2004-09-23
US61254704P 2004-09-23 2004-09-23
US61243304P 2004-09-23 2004-09-23
US61247104P 2004-09-23 2004-09-23
US61254804P 2004-09-23 2004-09-23
US61243504P 2004-09-23 2004-09-23
US61533804P 2004-10-01 2004-10-01
US61526004P 2004-10-01 2004-10-01
US62077604P 2004-10-20 2004-10-20
US62077504P 2004-10-20 2004-10-20
US62086204P 2004-10-20 2004-10-20
US62111304P 2004-10-22 2004-10-22
US63922304P 2004-12-23 2004-12-23
US11/233,316 US7190308B2 (en) 2004-09-23 2005-09-22 Blind signal separation using signal path selection

Publications (2)

Publication Number Publication Date
TW200627835A true TW200627835A (en) 2006-08-01
TWI281795B TWI281795B (en) 2007-05-21

Family

ID=38291589

Family Applications (7)

Application Number Title Priority Date Filing Date
TW094133239A TWI281795B (en) 2004-09-23 2005-09-23 Blind signal separation using signal path selection
TW094133237A TWI279995B (en) 2004-09-23 2005-09-23 Blind signal separation using spreading codes
TW094133246A TWI284465B (en) 2004-09-23 2005-09-23 Blind signal separation using correlated antenna elements
TW094133236A TWI287366B (en) 2004-09-23 2005-09-23 Blind signal separation using I and Q components
TW094133241A TWI269544B (en) 2004-09-23 2005-09-23 Blind signal separation using array deflection
TW094133244A TWI279099B (en) 2004-09-23 2005-09-23 Blind signal separation using a combination of correlated and uncorrelated antenna elements
TW094133245A TWI284464B (en) 2004-09-23 2005-09-23 Blind signal separation using polarized antenna elements

Family Applications After (6)

Application Number Title Priority Date Filing Date
TW094133237A TWI279995B (en) 2004-09-23 2005-09-23 Blind signal separation using spreading codes
TW094133246A TWI284465B (en) 2004-09-23 2005-09-23 Blind signal separation using correlated antenna elements
TW094133236A TWI287366B (en) 2004-09-23 2005-09-23 Blind signal separation using I and Q components
TW094133241A TWI269544B (en) 2004-09-23 2005-09-23 Blind signal separation using array deflection
TW094133244A TWI279099B (en) 2004-09-23 2005-09-23 Blind signal separation using a combination of correlated and uncorrelated antenna elements
TW094133245A TWI284464B (en) 2004-09-23 2005-09-23 Blind signal separation using polarized antenna elements

Country Status (1)

Country Link
TW (7) TWI281795B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8724717B2 (en) 2008-04-10 2014-05-13 Mediatek Inc. Pilot pattern design for high-rank MIMO OFDMA systems
US8126094B2 (en) * 2009-01-07 2012-02-28 Skyworks Solutions, Inc. Circuits, systems, and methods for managing automatic gain control in quadrature signal paths of a receiver
US10516219B2 (en) 2009-04-13 2019-12-24 Viasat, Inc. Multi-beam active phased array architecture with independent polarization control
TWI515970B (en) * 2009-04-13 2016-01-01 凡爾賽特公司 Active phased array architecture
US8693970B2 (en) 2009-04-13 2014-04-08 Viasat, Inc. Multi-beam active phased array architecture with independant polarization control
WO2010120790A2 (en) 2009-04-13 2010-10-21 Viasat, Inc. Half-duplex phased array antenna system
US8670432B2 (en) 2009-06-22 2014-03-11 Qualcomm Incorporated Methods and apparatus for coordination of sending reference signals from multiple cells
US8605777B2 (en) 2010-06-01 2013-12-10 Etron Technology, Inc. Circuit for recognizing a beginning and a data rate of data and method thereof
TWI809390B (en) * 2021-03-01 2023-07-21 新加坡商台達電子國際（新加坡）私人有限公司 Method and audio processing system for blind source separation without sampling rate mismatch estimation

Also Published As

Publication number Publication date
TW200627836A (en) 2006-08-01
TWI284465B (en) 2007-07-21
TW200627834A (en) 2006-08-01
TW200629777A (en) 2006-08-16
TWI287366B (en) 2007-09-21
TW200627841A (en) 2006-08-01
TW200627840A (en) 2006-08-01
TWI284464B (en) 2007-07-21
TWI279995B (en) 2007-04-21
TWI281795B (en) 2007-05-21
TWI279099B (en) 2007-04-11
TW200627839A (en) 2006-08-01
TWI269544B (en) 2006-12-21

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