AU4417297A - Demodulation of asynchronously sampled data by means of detection-transition sample estimation in a shared multi-carrier environment - Google Patents

Demodulation of asynchronously sampled data by means of detection-transition sample estimation in a shared multi-carrier environment

Info

Publication number
AU4417297A
AU4417297A AU44172/97A AU4417297A AU4417297A AU 4417297 A AU4417297 A AU 4417297A AU 44172/97 A AU44172/97 A AU 44172/97A AU 4417297 A AU4417297 A AU 4417297A AU 4417297 A AU4417297 A AU 4417297A
Authority
AU
Australia
Prior art keywords
demodulation
detection
sampled data
carrier environment
transition sample
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
AU44172/97A
Inventor
Soheil I. Sayegh
James R. Thomas
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.)
Comsat Corp
Original Assignee
Comsat 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
Application filed by Comsat Corp filed Critical Comsat Corp
Publication of AU4417297A publication Critical patent/AU4417297A/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • H04L25/03114—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals
    • H04L25/03133—Arrangements for removing intersymbol interference operating in the time domain non-adaptive, i.e. not adjustable, manually adjustable, or adjustable only during the reception of special signals with a non-recursive structure
    • 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
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/068—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection by sampling faster than the nominal bit rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/22—Demodulator circuits; Receiver circuits
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
    • H04L27/2332—Demodulator circuits; Receiver circuits using non-coherent demodulation using a non-coherent carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
    • H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop
    • H04L7/0334—Processing of samples having at least three levels, e.g. soft decisions
    • 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
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/003—Correction of carrier offset at baseband only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0053—Closed loops

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
AU44172/97A 1996-09-20 1997-09-19 Demodulation of asynchronously sampled data by means of detection-transition sample estimation in a shared multi-carrier environment Abandoned AU4417297A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US2643196P 1996-09-20 1996-09-20
US60026431 1996-09-20
PCT/US1997/016349 WO1998012849A1 (en) 1996-09-20 1997-09-19 Demodulation of asynchronously sampled data by means of detection-transition sample estimation in a shared multi-carrier environment

Publications (1)

Publication Number Publication Date
AU4417297A true AU4417297A (en) 1998-04-14

Family

ID=21831783

Family Applications (1)

Application Number Title Priority Date Filing Date
AU44172/97A Abandoned AU4417297A (en) 1996-09-20 1997-09-19 Demodulation of asynchronously sampled data by means of detection-transition sample estimation in a shared multi-carrier environment

Country Status (4)

Country Link
EP (1) EP0920764A4 (en)
AU (1) AU4417297A (en)
CA (1) CA2263679C (en)
WO (1) WO1998012849A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6278754B1 (en) * 1996-09-20 2001-08-21 Comsat Corporation Demodulation of asynchronously sampled data by means of detection-transition sample estimation in a shared multi-carrier environment
US7154971B2 (en) 1999-03-19 2006-12-26 Comsat Corporation DTSE at less than two complex samples per symbol
US8401108B1 (en) 2008-09-11 2013-03-19 L-3 Communications Corp Modulation and demodulation of band-limited signals using near-Nyquist sampling

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5317734A (en) * 1989-08-29 1994-05-31 North American Philips Corporation Method of synchronizing parallel processors employing channels and compiling method minimizing cross-processor data dependencies
US5228062A (en) * 1990-04-16 1993-07-13 Telebit Corporation Method and apparatus for correcting for clock and carrier frequency offset, and phase jitter in multicarrier modems
US5537435A (en) * 1994-04-08 1996-07-16 Carney; Ronald Transceiver apparatus employing wideband FFT channelizer with output sample timing adjustment and inverse FFT combiner for multichannel communication network

Also Published As

Publication number Publication date
EP0920764A4 (en) 2006-03-01
WO1998012849A1 (en) 1998-03-26
CA2263679C (en) 2003-07-08
CA2263679A1 (en) 1998-03-26
EP0920764A1 (en) 1999-06-09

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