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AU2001267030A1 - Method and apparatus for demodulating coherent and non-coherent modulated signals - Google Patents

Method and apparatus for demodulating coherent and non-coherent modulated signals

Info

Publication number
AU2001267030A1
AU2001267030A1 AU2001267030A AU6703001A AU2001267030A1 AU 2001267030 A1 AU2001267030 A1 AU 2001267030A1 AU 2001267030 A AU2001267030 A AU 2001267030A AU 6703001 A AU6703001 A AU 6703001A AU 2001267030 A1 AU2001267030 A1 AU 2001267030A1
Authority
AU
Australia
Prior art keywords
coherent
demodulating
modulated signals
coherent modulated
signals
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
AU2001267030A
Inventor
Stephen D Anderson
Daniel V. Hulse
Paul D. Kammann
Gabriel A. Maalouf
Kevin B Moore
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.)
Rosemount Inc
Original Assignee
Rosemount Inc
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 Rosemount Inc filed Critical Rosemount Inc
Publication of AU2001267030A1 publication Critical patent/AU2001267030A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • H04L27/2331—Demodulator circuits; Receiver circuits using non-coherent demodulation wherein the received signal is demodulated using one or more delayed versions of itself
    • 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
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2271—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals
    • H04L27/2273—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals associated with quadrature demodulation, e.g. Costas loop
    • 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
    • H04L2027/0057—Closed loops quadrature phase
    • 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
    • H04L2027/0063—Elements of loops
    • H04L2027/0067—Phase error detectors
    • 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
    • H04L2027/0071—Control of loops
    • H04L2027/0079—Switching between loops

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
AU2001267030A 2000-06-09 2001-06-06 Method and apparatus for demodulating coherent and non-coherent modulated signals Abandoned AU2001267030A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09592464 2000-06-09
US09/592,464 US6297691B1 (en) 2000-06-09 2000-06-09 Method and apparatus for demodulating coherent and non-coherent modulated signals
PCT/US2001/040856 WO2001095478A2 (en) 2000-06-09 2001-06-06 Method and apparatus for demodulating coherent and non-coherent modulated signals

Publications (1)

Publication Number Publication Date
AU2001267030A1 true AU2001267030A1 (en) 2001-12-17

Family

ID=24370742

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001267030A Abandoned AU2001267030A1 (en) 2000-06-09 2001-06-06 Method and apparatus for demodulating coherent and non-coherent modulated signals

Country Status (5)

Country Link
US (1) US6297691B1 (en)
JP (1) JP2003536310A (en)
AU (1) AU2001267030A1 (en)
DE (1) DE10196328T1 (en)
WO (1) WO2001095478A2 (en)

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US7245671B1 (en) * 2001-04-27 2007-07-17 The Directv Group, Inc. Preprocessing signal layers in a layered modulation digital signal system to use legacy receivers
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US7151807B2 (en) 2001-04-27 2006-12-19 The Directv Group, Inc. Fast acquisition of timing and carrier frequency from received signal
US7471735B2 (en) 2001-04-27 2008-12-30 The Directv Group, Inc. Maximizing power and spectral efficiencies for layered and conventional modulations
US7184489B2 (en) 2001-04-27 2007-02-27 The Directv Group, Inc. Optimization technique for layered modulation
US7502430B2 (en) 2001-04-27 2009-03-10 The Directv Group, Inc. Coherent averaging for measuring traveling wave tube amplifier nonlinearity
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US7463676B2 (en) 2002-10-25 2008-12-09 The Directv Group, Inc. On-line phase noise measurement for layered modulation
US7529312B2 (en) 2002-10-25 2009-05-05 The Directv Group, Inc. Layered modulation for terrestrial ATSC applications
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US7474710B2 (en) 2002-10-25 2009-01-06 The Directv Group, Inc. Amplitude and phase matching for layered modulation reception
JP2006509438A (en) * 2002-12-09 2006-03-16 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ Phase / gain imbalance estimation or compensation
US7301967B2 (en) * 2002-12-13 2007-11-27 The United States Of America As Represented By The Secretary Of The Air Foece Method and apparatus for processing custom time division multiplexed signals
US8099099B2 (en) * 2003-02-19 2012-01-17 Qualcomm Incorporated Methods and apparatus related to assignment in a wireless communications system
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US6947493B2 (en) * 2003-10-10 2005-09-20 Atmel Corporation Dual phase pulse modulation decoder circuit
US7502429B2 (en) 2003-10-10 2009-03-10 The Directv Group, Inc. Equalization for traveling wave tube amplifier nonlinearity measurements
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US7283011B2 (en) * 2003-10-10 2007-10-16 Atmel Corporation Method for performing dual phase pulse modulation
US7079577B2 (en) * 2004-09-08 2006-07-18 Atmel Corporation Wide window decoder circuit for dual phase pulse modulation
US7826807B2 (en) * 2005-03-09 2010-11-02 Qualcomm Incorporated Methods and apparatus for antenna control in a wireless terminal
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US7720485B2 (en) * 2006-07-14 2010-05-18 Qualcomm Incorporated Methods and apparatus related to assignment in a wireless communications system
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US8619919B2 (en) * 2010-10-14 2013-12-31 Qualcomm Incorporated Selective coherent and non-coherent demodulation methods and apparatuses
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US9148709B2 (en) 2011-08-03 2015-09-29 Infineon Technologies Ag Sensor interface with variable control coefficients
US8971445B2 (en) * 2011-08-25 2015-03-03 Analog Device, Inc. Method and apparatus for equalizing a transmit channel for cable losses in a C8PSK HART system
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US9772353B2 (en) 2013-06-04 2017-09-26 Tektronix, Inc. Equivalent-time sampling technique for non-coherently modulated signals
WO2015065064A1 (en) * 2013-10-30 2015-05-07 삼성전자주식회사 Method and device for transmitting preamble sequence
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US5430770A (en) * 1994-04-22 1995-07-04 Rockwell International Corp. Method and apparatus for composite signal separation and PSK/AM/FM demodulation
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Also Published As

Publication number Publication date
JP2003536310A (en) 2003-12-02
US6297691B1 (en) 2001-10-02
WO2001095478A3 (en) 2002-06-13
DE10196328T1 (en) 2003-08-28
WO2001095478A2 (en) 2001-12-13

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