TW200627834A - Blind signal separation using I and Q components - Google Patents

Blind signal separation using I and Q components

Info

Publication number
TW200627834A
TW200627834A TW094133236A TW94133236A TW200627834A TW 200627834 A TW200627834 A TW 200627834A TW 094133236 A TW094133236 A TW 094133236A TW 94133236 A TW94133236 A TW 94133236A TW 200627834 A TW200627834 A TW 200627834A
Authority
TW
Taiwan
Prior art keywords
source signals
mixing matrix
signal separation
blind signal
phase
Prior art date
Application number
TW094133236A
Other languages
Chinese (zh)
Other versions
TWI287366B (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 US11/233,307 external-priority patent/US7123191B2/en
Application filed by Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of TW200627834A publication Critical patent/TW200627834A/en
Application granted granted Critical
Publication of TWI287366B publication Critical patent/TWI287366B/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 antenna elements for receiving at least N different summations of the M source signals. A respective in-phase and quadrature module is connected downstream to each antenna element for separating each one of the N different summations of the M source signals received thereby into an in-phase and quadrature component set. A blind signal separation processor forms a mixing matrix comprising at least 2N different summations of the M source signals, with each in-phase and quadrature component set providing 2 inputs into the mixing matrix. The mixing matrix has a rank equal up to 2N. The desired source signals are separated from the mixing matrix by the blind signal separation processor.
TW094133236A 2004-09-23 2005-09-23 Blind signal separation using I and Q components TWI287366B (en)

Applications Claiming Priority (18)

Application Number Priority Date Filing Date Title
US61255104P 2004-09-23 2004-09-23
US61247104P 2004-09-23 2004-09-23
US61243504P 2004-09-23 2004-09-23
US61254704P 2004-09-23 2004-09-23
US61243304P 2004-09-23 2004-09-23
US61255004P 2004-09-23 2004-09-23
US61254604P 2004-09-23 2004-09-23
US61254804P 2004-09-23 2004-09-23
US61263204P 2004-09-23 2004-09-23
US61246904P 2004-09-23 2004-09-23
US61533804P 2004-10-01 2004-10-01
US61526004P 2004-10-01 2004-10-01
US62086204P 2004-10-20 2004-10-20
US62077504P 2004-10-20 2004-10-20
US62077604P 2004-10-20 2004-10-20
US62111304P 2004-10-22 2004-10-22
US63922304P 2004-12-23 2004-12-23
US11/233,307 US7123191B2 (en) 2004-09-23 2005-09-22 Blind signal separation using I and Q components

Publications (2)

Publication Number Publication Date
TW200627834A true TW200627834A (en) 2006-08-01
TWI287366B TWI287366B (en) 2007-09-21

Family

ID=38291589

Family Applications (7)

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

Family Applications Before (4)

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

Family Applications After (2)

Application Number Title Priority Date Filing Date
TW094133245A TWI284464B (en) 2004-09-23 2005-09-23 Blind signal separation using polarized antenna elements
TW094133239A TWI281795B (en) 2004-09-23 2005-09-23 Blind signal separation using signal path selection

Country Status (1)

Country Link
TW (7) TWI279099B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8724718B2 (en) 2008-04-10 2014-05-13 Mediatek Inc. Pilot pattern design for small size resource block in 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
TWI505633B (en) * 2009-04-13 2015-10-21 Viasat Inc Active feed forward amplifier
US8693970B2 (en) 2009-04-13 2014-04-08 Viasat, Inc. Multi-beam active phased array architecture with independant polarization control
TWI520439B (en) 2009-04-13 2016-02-01 凡爾賽特公司 Half-duplex phased array antenna system
US10516219B2 (en) 2009-04-13 2019-12-24 Viasat, Inc. Multi-beam active phased array architecture with independent polarization control
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
TWI281795B (en) 2007-05-21
TWI287366B (en) 2007-09-21
TWI279995B (en) 2007-04-21
TW200627840A (en) 2006-08-01
TW200627835A (en) 2006-08-01
TWI279099B (en) 2007-04-11
TW200629777A (en) 2006-08-16
TWI284464B (en) 2007-07-21
TW200627841A (en) 2006-08-01
TWI284465B (en) 2007-07-21
TWI269544B (en) 2006-12-21
TW200627839A (en) 2006-08-01
TW200627836A (en) 2006-08-01

Similar Documents

Publication Publication Date Title
HK1106071A1 (en) Blind signal separation using i and q components
TW200627834A (en) Blind signal separation using I and Q components
WO2006034424A3 (en) Blind signal separation using a combination of correlated and uncorrelated antenna elements
WO2006044119A3 (en) Blind signal separation using polarized antenna elements
HK1106029A1 (en) Blind signal separation using spreading codes
WO2006034499A3 (en) Blind signal separation using signal path selection
WO2005008508A3 (en) Multi-protocol port
WO2004001893A3 (en) Reduced-complexity antenna system using multiplexed receive chain processing
NO20072084L (en) Blind signal separation by means of group rejection
WO2008039380A3 (en) Integrating an fm transmitter into a cellular telephone
RU2009127766A (en) WAVE DIRECTION DIAGRAMS IN TRANSMISSION MODE FOR NUMEROUS SIMULTANEOUSLY WORKING TRANSMITTERS TO SUPPORT SIGNAL SEPARATION IN THE RECEIVER
WO2006034469A3 (en) Blind signal separation using correlated antenna elements
CA2533360A1 (en) Method and apparatus for transmission and reception of data
WO2007038326A3 (en) Pattern diversity to support a mimo receiver and associated methods
TW200644461A (en) Signal separation techniques to provide robust spread spectrum signal decoding
DE502004006598D1 (en) METHOD FOR PREFILING TRAINING SEQUENCES IN A RADIO COMMUNICATION SYSTEM
WO2007086939A3 (en) Cmos integrated super-heterodyne television receiver with multiple signal paths
TW200713853A (en) Digital broadcasting signal receiver with a plurality of receiving modules
BRPI0516367A (en) separation of statistically independent signals through the use of components "i" and "q"
WO2007057434A3 (en) Device for the transmission of a current and/or a signal
TW200729902A (en) Portable electronic apparatus
EP1562308A3 (en) Diversity receiver
WO2008142506A3 (en) Apparatus for receiving and transmitting television signals
TH82541A (en) A non-modular digital tuner that provides oversized and scalable data output.

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees