NO943189L - Demodulator for forbruker-anvendelser - Google Patents

Demodulator for forbruker-anvendelser

Info

Publication number
NO943189L
NO943189L NO943189A NO943189A NO943189L NO 943189 L NO943189 L NO 943189L NO 943189 A NO943189 A NO 943189A NO 943189 A NO943189 A NO 943189A NO 943189 L NO943189 L NO 943189L
Authority
NO
Norway
Prior art keywords
digital signals
channel digital
frequency
signal
phase errors
Prior art date
Application number
NO943189A
Other languages
English (en)
Other versions
NO943189D0 (no
Inventor
Itzhak Gurantz
Yoav Goldenberg
Sree A Raghavan
Original Assignee
Comstream 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 Comstream Corp filed Critical Comstream Corp
Publication of NO943189D0 publication Critical patent/NO943189D0/no
Publication of NO943189L publication Critical patent/NO943189L/no

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
    • 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
    • H04L2027/0057—Closed loops quadrature phase

Landscapes

  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Engineering & Computer Science (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Amplifiers (AREA)
  • Optical Communication System (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Analogue/Digital Conversion (AREA)
  • Detergent Compositions (AREA)
  • Superheterodyne Receivers (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

En demodulator som reagerer på et analogt signal med overlagrede symboler omfatter et par forholdsvis rimelige analog-til-digital (AD) omformere for å sample I og Q kanaler i signalet kun en gang per symbol. En derotator reagerer på utgangssignaler fra omformerne og et digitalt signal SOTT. representerer frekvens- og fcsekorreksjoner for inngangssignalet til demodulatoren virker i samsvar med en CORDIC-funksjon for å utlede korrigerte, digitale I og Q kanalsignaler. En digital faseskifter faseforskyvnings- anordning) reagerer på minst ett av de digitale I og Q signalstyringene når inngangssignalet samples av omformeren.
NO943189A 1992-12-30 1994-08-29 Demodulator for forbruker-anvendelser NO943189L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/998,300 US5550869A (en) 1992-12-30 1992-12-30 Demodulator for consumer uses
PCT/US1993/012613 WO1994016505A2 (en) 1992-12-30 1993-12-29 Psk demodulator

Publications (2)

Publication Number Publication Date
NO943189D0 NO943189D0 (no) 1994-08-29
NO943189L true NO943189L (no) 1994-10-28

Family

ID=25545023

Family Applications (1)

Application Number Title Priority Date Filing Date
NO943189A NO943189L (no) 1992-12-30 1994-08-29 Demodulator for forbruker-anvendelser

Country Status (17)

Country Link
US (1) US5550869A (no)
EP (2) EP0848523A3 (no)
JP (1) JPH07508389A (no)
KR (1) KR950700651A (no)
CN (1) CN1092231A (no)
AT (1) ATE183869T1 (no)
AU (1) AU682336B2 (no)
BR (1) BR9305988A (no)
CA (1) CA2130269C (no)
CZ (4) CZ279497A3 (no)
DE (1) DE69326140T2 (no)
HU (1) HUT68003A (no)
NO (1) NO943189L (no)
NZ (1) NZ261042A (no)
PL (2) PL175825B1 (no)
RU (1) RU2128399C1 (no)
WO (1) WO1994016505A2 (no)

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Also Published As

Publication number Publication date
CZ279697A3 (cs) 1998-10-14
US5550869A (en) 1996-08-27
CA2130269A1 (en) 1994-07-21
DE69326140D1 (de) 1999-09-30
ATE183869T1 (de) 1999-09-15
CZ279597A3 (cs) 1998-10-14
HUT68003A (en) 1995-05-29
NZ261042A (en) 1996-07-26
PL175825B1 (pl) 1999-02-26
DE69326140T2 (de) 2000-04-20
EP0848523A2 (en) 1998-06-17
CA2130269C (en) 1999-11-16
WO1994016505A3 (en) 1994-09-29
CN1092231A (zh) 1994-09-14
NO943189D0 (no) 1994-08-29
JPH07508389A (ja) 1995-09-14
PL175162B1 (pl) 1998-11-30
CZ279497A3 (cs) 1998-10-14
RU2128399C1 (ru) 1999-03-27
EP0628229A1 (en) 1994-12-14
CZ197594A3 (en) 1995-02-15
EP0628229B1 (en) 1999-08-25
BR9305988A (pt) 1997-10-21
HU9402492D0 (en) 1994-11-28
AU682336B2 (en) 1997-10-02
KR950700651A (ko) 1995-01-16
EP0848523A3 (en) 2001-09-26
WO1994016505A2 (en) 1994-07-21
AU5961594A (en) 1994-08-15
PL305556A1 (en) 1995-01-23

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