IT1255852B - Sistema e circuito per la stima della frequenza della portante di un segnale numerico psk - Google Patents

Sistema e circuito per la stima della frequenza della portante di un segnale numerico psk

Info

Publication number
IT1255852B
IT1255852B ITMI922325A ITMI922325A IT1255852B IT 1255852 B IT1255852 B IT 1255852B IT MI922325 A ITMI922325 A IT MI922325A IT MI922325 A ITMI922325 A IT MI922325A IT 1255852 B IT1255852 B IT 1255852B
Authority
IT
Italy
Prior art keywords
circuit
carrier frequency
psk
estimation
frequency
Prior art date
Application number
ITMI922325A
Other languages
English (en)
Inventor
Maurizio Bolla
Franco Guglielmi
Original Assignee
Alcatel Italia
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 Alcatel Italia filed Critical Alcatel Italia
Priority to ITMI922325A priority Critical patent/IT1255852B/it
Publication of ITMI922325A0 publication Critical patent/ITMI922325A0/it
Priority to EP93115150A priority patent/EP0591748A1/en
Priority to US08/131,208 priority patent/US5541966A/en
Priority to NO933533A priority patent/NO933533L/no
Priority to JP5279085A priority patent/JPH06209341A/ja
Publication of ITMI922325A1 publication Critical patent/ITMI922325A1/it
Application granted granted Critical
Publication of IT1255852B publication Critical patent/IT1255852B/it

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
    • H04L27/2332—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
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0063—Elements of loops
    • H04L2027/0065—Frequency error detectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Circuits Of Receivers In General (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

La presente invenzione riguarda un sistema per la stima della frequenza della portante di un segnale numerico con modulazione PSK, in cui si trasmettono simboli a frequenza fs.Il trovato si caratterizza per l'utilizzo di una stima, ad ogni intervallo di simbolo, della differenza angolare tra due dati successivi. Tale stima, opportunamente elaborata, fornisce il segnale di controllo per un circuito che compensa l'errore di frequenza tra la portante del segnale ricevuto e l'oscillatore locale.In una forma di realizzazione, peraltro non limitativa, il trovato può essere implementato mediante circuiteria esclusivamente digitale.
ITMI922325A 1992-10-09 1992-10-09 Sistema e circuito per la stima della frequenza della portante di un segnale numerico psk IT1255852B (it)

Priority Applications (5)

Application Number Priority Date Filing Date Title
ITMI922325A IT1255852B (it) 1992-10-09 1992-10-09 Sistema e circuito per la stima della frequenza della portante di un segnale numerico psk
EP93115150A EP0591748A1 (en) 1992-10-09 1993-09-21 Method and circuit for estimating the carrier frequency of PSK signals
US08/131,208 US5541966A (en) 1992-10-09 1993-10-01 System and circuit for estimating the carrier frequency of a PSK numeric signal
NO933533A NO933533L (no) 1992-10-09 1993-10-04 Fremgangsmåte og anordning for bestemmelse av bærebölgefrekvens
JP5279085A JPH06209341A (ja) 1992-10-09 1993-10-12 Ｐｓｋ数字信号の搬送波周波数の推定システムおよび回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI922325A IT1255852B (it) 1992-10-09 1992-10-09 Sistema e circuito per la stima della frequenza della portante di un segnale numerico psk

Publications (3)

Publication Number Publication Date
ITMI922325A0 ITMI922325A0 (it) 1992-10-09
ITMI922325A1 ITMI922325A1 (it) 1994-04-09
IT1255852B true IT1255852B (it) 1995-11-17

Family

ID=11364084

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI922325A IT1255852B (it) 1992-10-09 1992-10-09 Sistema e circuito per la stima della frequenza della portante di un segnale numerico psk

Country Status (5)

Country Link
US (1) US5541966A (it)
EP (1) EP0591748A1 (it)
JP (1) JPH06209341A (it)
IT (1) IT1255852B (it)
NO (1) NO933533L (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0674412B1 (en) * 1994-03-25 2004-07-14 Samsung Electronics Co., Ltd. Method and apparatus for automatic frequency control
JP3166494B2 (ja) * 1994-07-27 2001-05-14 松下電器産業株式会社 遅延検波方法および装置
DE19529982A1 (de) * 1995-08-16 1997-02-20 Bosch Gmbh Robert Verfahren zur Synchronisation
US6430235B1 (en) * 1998-11-05 2002-08-06 Wireless Facilities, Inc. Non-data-aided feedforward timing synchronization method
JP2002534909A (ja) * 1999-01-06 2002-10-15 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 周波数ズレ補正用の回転手段を有する復調器
US7706483B2 (en) * 2004-05-12 2010-04-27 Thomson Licensing Carrier phase ambiguity correction
EP1745586B1 (en) 2004-05-12 2010-01-20 Thomson Licensing S.A. Carrier phase ambiguity correction

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2658221B2 (ja) * 1988-07-27 1997-09-30 日本電気株式会社 位相制御方式
FR2661792A1 (fr) * 1990-05-04 1991-11-08 Alcatel Radiotelephone Dispositif d'evaluation d'ecart de frequence.
US5093846A (en) * 1990-06-15 1992-03-03 Sundstrand Data Control, Inc. Signal acquisition using modulation by a preselected code group
IT1244206B (it) * 1990-12-19 1994-07-08 Telettra Spa Sistema e circuito per la stima della frequenza di portante di un segnale
US5255290A (en) * 1992-08-21 1993-10-19 Teknekron Communications System, Inc. Method and apparatus for combined frequency offset and timing offset estimation

Also Published As

Publication number Publication date
JPH06209341A (ja) 1994-07-26
ITMI922325A0 (it) 1992-10-09
EP0591748A1 (en) 1994-04-13
ITMI922325A1 (it) 1994-04-09
NO933533L (no) 1994-04-11
US5541966A (en) 1996-07-30
NO933533D0 (no) 1993-10-04

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19961203