AU2001290483A1 - Reconstruction of nonuniformly sampled bandlimited signals - Google Patents

Reconstruction of nonuniformly sampled bandlimited signals

Info

Publication number
AU2001290483A1
AU2001290483A1 AU2001290483A AU9048301A AU2001290483A1 AU 2001290483 A1 AU2001290483 A1 AU 2001290483A1 AU 2001290483 A AU2001290483 A AU 2001290483A AU 9048301 A AU9048301 A AU 9048301A AU 2001290483 A1 AU2001290483 A1 AU 2001290483A1
Authority
AU
Australia
Prior art keywords
subsequences
reconstruction
integer
frequency
nonuniformly
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.)
Abandoned
Application number
AU2001290483A
Inventor
Hakan Johansson
Per Lowenborg
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of AU2001290483A1 publication Critical patent/AU2001290483A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/0617—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence
    • H03M1/0626—Continuously compensating for, or preventing, undesired influence of physical parameters characterised by the use of methods or means not specific to a particular type of detrimental influence by filtering
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/08—Continuously compensating for, or preventing, undesired influence of physical parameters of noise
    • H03M1/0836—Continuously compensating for, or preventing, undesired influence of physical parameters of noise of phase error, e.g. jitter
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/1205—Multiplexed conversion systems
    • H03M1/121—Interleaved, i.e. using multiple converters or converter parts for one channel
    • H03M1/1215—Interleaved, i.e. using multiple converters or converter parts for one channel using time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
  • Measurement Of Radiation (AREA)
  • Wire Bonding (AREA)
  • Complex Calculations (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Glass Compositions (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

The present invention refers to a method and apparatus for reconstruction of a nonuniformly sampled bandlimited analog signal xa(t), said nonuniformly sampled signal comprising N subsequences xk(m), k=0, 1, . . . , N-1, N>=2, obtained through sampling at a sampling rate of 1/(MT) according to xk(m)=xa(nMT+tk), where M is an integer, and tk=kMT/N+DELTAtk, DELTAtk being different from zero. The invention comprises forming a new sequence y(n) from said N subsequences xk(m) such that y(n) at least contains the same information as x(n)=xa(nT), i.e. xa(t) sampled with a sampling rate of 1/T, in a frequency region lower than omega0, omega0 being a predetermined limit frequency, by means of (i) upsampling each of said N subsequences xk(m), k=0, 1, . . . , N-1, by a factor M, M being a positive integer; (ii) filtering each of said upsampled N subsequences xk(m), k=0, 1, . . . , N-1, by a respective digital filter; and (iii) adding said N digitally filtered subsequences to form y(n). The respective digital filter is preferably a fractional delay filter and has preferably a frequency response Gk=ake(-jomegasT), k=0, 1, . . . , N-1, in the frequency band |omegaT|<=omega0T, ak being a constant and s=d+tk, d being an integer.
AU2001290483A 2000-10-02 2001-09-28 Reconstruction of nonuniformly sampled bandlimited signals Abandoned AU2001290483A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE0003549 2000-10-02
SE0003549A SE518092C2 (en) 2000-10-02 2000-10-02 Procedure and resp. digital signal processing device for reconstruction of uniformly sampled signals.
PCT/SE2001/002105 WO2002029806A1 (en) 2000-10-02 2001-09-28 Reconstruction of nonuniformly sampled bandlimited signals

Publications (1)

Publication Number Publication Date
AU2001290483A1 true AU2001290483A1 (en) 2002-04-15

Family

ID=20281267

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001290483A Abandoned AU2001290483A1 (en) 2000-10-02 2001-09-28 Reconstruction of nonuniformly sampled bandlimited signals

Country Status (9)

Country Link
US (1) US6476754B2 (en)
EP (1) EP1330824B1 (en)
CN (1) CN100379154C (en)
AT (1) ATE386323T1 (en)
AU (1) AU2001290483A1 (en)
DE (1) DE60132797T2 (en)
SE (1) SE518092C2 (en)
TW (1) TW498623B (en)
WO (1) WO2002029806A1 (en)

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AU2003301612A1 (en) * 2002-10-25 2004-05-13 The Trustees Of Columbia University In The City Of New York Time encoding and decoding of a signal
US6980147B2 (en) * 2003-04-07 2005-12-27 Photon Products, Inc. Channelized analog-to-digital converter
WO2004112298A2 (en) 2003-05-27 2004-12-23 The Trustees Of Columbia University In The City Of New York Multichannel time encoding and decoding of a signal
US7233270B2 (en) * 2005-01-28 2007-06-19 Realtek Semiconductor Corp. Receiver capable of correcting mismatch of time-interleaved parallel ADC and method thereof
EP1844550B1 (en) * 2005-02-04 2010-12-08 Signal Processing Devices Sweden AB Estimation of timing errors in a time-interleaved analog to digital converter system
US7138933B2 (en) * 2005-04-26 2006-11-21 Analog Devices, Inc. Time-interleaved signal converter systems with reduced timing skews
DE102005060874A1 (en) * 2005-12-20 2007-06-21 Robert Bosch Gmbh Non-equidistantly sampled analog signals reconstructing method, involves filtering weight value sequence using reconstruction filter function for forming reconstruction value sequence
DE102006023697B4 (en) * 2006-05-19 2008-02-07 Infineon Technologies Ag Method of decoding, decoder, encoder-decoder system and converter
WO2008151137A2 (en) * 2007-06-01 2008-12-11 The Trustees Of Columbia University In The City Of New York Real-time time encoding and decoding machines
WO2009006405A1 (en) * 2007-06-28 2009-01-08 The Trustees Of Columbia University In The City Of New York Multi-input multi-output time encoding and decoding machines
US20100135446A1 (en) * 2008-12-03 2010-06-03 Electronics And Telecommunications Research Institute Digital-intensive rf receiver
KR101450044B1 (en) 2008-12-16 2014-10-13 시그널 프로세싱 디바이시스 스웨덴 에이비 Methods and apparatuses for estimation and compensation of nonlinearity errors
WO2010124523A1 (en) * 2009-04-29 2010-11-04 The University Of Hong Kong Methods or structures for reconstruction of substantially uniform samples from substantially nonuniform samples
KR100964378B1 (en) * 2009-06-23 2010-06-25 한국전자통신연구원 Digital receiver
US8532238B2 (en) * 2010-02-08 2013-09-10 Electronics And Telecommunications Research Institute Subsampling based receiver using frequency selective noise canceller
JP2011166773A (en) * 2010-02-11 2011-08-25 Korea Electronics Telecommun Digital processing structure for receiver utilizing sub-sampling technique
WO2012109407A1 (en) 2011-02-09 2012-08-16 The Trustees Of Columbia University In The City Of New York Encoding and decoding machine with recurrent neural networks
US9209844B2 (en) 2012-01-11 2015-12-08 Electronics And Telecommunications Research Institute Subsampling receiver using interstage off-chip RF band pass filter
WO2015054901A1 (en) * 2013-10-18 2015-04-23 华为技术有限公司 Device and method for converting analog information
EP3353895A1 (en) * 2015-09-25 2018-08-01 Google LLC Increased sampling in non-uniform sampling analog-to-digital converters

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4792787A (en) * 1987-02-04 1988-12-20 The United States Of America As Represented By The Secretary Of The Navy Wide dynamic range analog-to-digital converter using linear prediction
US5610825A (en) * 1994-11-08 1997-03-11 Johnson; William J. Method and apparatus for the display of digitized analog signal loss
JP2000068835A (en) * 1998-08-25 2000-03-03 Sony Corp Digital/analog converter
DE69812369T2 (en) * 1998-12-01 2004-02-19 Stmicroelectronics S.R.L., Agrate Brianza Time-interleaved digital signal processing method in a read channel with reduced noise figure
CA2282776C (en) * 1999-09-17 2004-10-05 Timothy John Borer Method and apparatus for high speed analog to digital conversion

Also Published As

Publication number Publication date
US6476754B2 (en) 2002-11-05
TW498623B (en) 2002-08-11
CN100379154C (en) 2008-04-02
EP1330824A1 (en) 2003-07-30
WO2002029806A1 (en) 2002-04-11
SE0003549D0 (en) 2000-10-02
DE60132797D1 (en) 2008-03-27
SE0003549L (en) 2002-04-03
SE518092C2 (en) 2002-08-27
CN1468433A (en) 2004-01-14
ATE386323T1 (en) 2008-03-15
DE60132797T2 (en) 2009-02-12
US20020075177A1 (en) 2002-06-20
EP1330824B1 (en) 2008-02-13

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