[go: up one dir, main page]

ATE179851T1 - Mpsk-demodulator - Google Patents

Mpsk-demodulator

Info

Publication number
ATE179851T1
ATE179851T1 AT94919721T AT94919721T ATE179851T1 AT E179851 T1 ATE179851 T1 AT E179851T1 AT 94919721 T AT94919721 T AT 94919721T AT 94919721 T AT94919721 T AT 94919721T AT E179851 T1 ATE179851 T1 AT E179851T1
Authority
AT
Austria
Prior art keywords
signal
pct
clock
recovered
carrier
Prior art date
Application number
AT94919721T
Other languages
English (en)
Inventor
Michel Alard
Original Assignee
Thomcast
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 Thomcast filed Critical Thomcast
Application granted granted Critical
Publication of ATE179851T1 publication Critical patent/ATE179851T1/de

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
    • H04L27/227—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Communication Control (AREA)
  • Amplifiers (AREA)
AT94919721T 1993-06-17 1994-06-16 Mpsk-demodulator ATE179851T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9307324A FR2706711B1 (fr) 1993-06-17 1993-06-17 Procédé et dispositif de démodulation de signal numérique.

Publications (1)

Publication Number Publication Date
ATE179851T1 true ATE179851T1 (de) 1999-05-15

Family

ID=9448242

Family Applications (1)

Application Number Title Priority Date Filing Date
AT94919721T ATE179851T1 (de) 1993-06-17 1994-06-16 Mpsk-demodulator

Country Status (10)

Country Link
US (1) US5640125A (de)
EP (1) EP0705513B1 (de)
KR (1) KR960703301A (de)
AT (1) ATE179851T1 (de)
CA (1) CA2165456A1 (de)
DE (1) DE69418328D1 (de)
FI (1) FI956002A0 (de)
FR (1) FR2706711B1 (de)
NO (1) NO955072D0 (de)
WO (1) WO1995001034A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5815529A (en) * 1996-04-04 1998-09-29 Lucent Technologies Inc. Transmission system for digital audio broadcasting that incorporates a rotator in the transmitter
EP0810750B1 (de) * 1996-05-30 2005-07-13 Matsushita Electric Industrial Co., Ltd. Empfänger für digitalen Rundfunk
GB9613812D0 (en) * 1996-07-02 1996-09-04 Plessey Semiconductors Ltd Radio receiver arrangements
US5901173A (en) * 1996-12-09 1999-05-04 Raytheon Company Noise Estimator
US5883548A (en) * 1997-11-10 1999-03-16 The United States Of America As Represented By The Secretary Of The Navy Demodulation system and method for recovering a signal of interest from an undersampled, modulated carrier
US7003016B1 (en) * 1998-10-13 2006-02-21 Texas Instruments Incorporated Maximum likelihood timing synchronizers for sampled PSK burst TDMA system
US6411661B1 (en) * 1999-05-07 2002-06-25 The Aerospace Corporation Digital timing recovery loop for GMSK demodulators
FR2800951A1 (fr) * 1999-11-10 2001-05-11 Koninkl Philips Electronics Nv Estimation de l'instant d'echantillonnage optimal dans un systeme de transmissions par paquets tdma
FR2824205B1 (fr) * 2001-04-27 2004-11-05 Thomson Csf Procede de multiplication de frequence dans un equipement de radiocommunication

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4466108A (en) * 1981-10-06 1984-08-14 Communications Satellite Corporation TDMA/PSK Carrier synchronization without preamble
JPH0716206B2 (ja) * 1988-08-05 1995-02-22 日本電気株式会社 信号検出器
CA1288878C (en) * 1988-08-15 1991-09-10 John D. Mcnicol Timing and carrier recovery in tdma without preamable sequence
CA2025135C (en) * 1989-09-13 1993-06-29 Shousei Yoshida Frequency tracking circuit using samples equalized at different sampling instants of same clock period

Also Published As

Publication number Publication date
DE69418328D1 (de) 1999-06-10
FR2706711A1 (fr) 1994-12-23
FI956002L (fi) 1995-12-14
US5640125A (en) 1997-06-17
EP0705513A1 (de) 1996-04-10
FI956002A0 (fi) 1995-12-14
FR2706711B1 (fr) 1996-10-18
KR960703301A (ko) 1996-06-19
WO1995001034A1 (fr) 1995-01-05
CA2165456A1 (fr) 1995-01-05
NO955072L (no) 1995-12-14
NO955072D0 (no) 1995-12-14
EP0705513B1 (de) 1999-05-06

Similar Documents

Publication Publication Date Title
US5499267A (en) Spread spectrum communication system
CA2152107A1 (en) Receiver and Transmitter-Receiver
US4045796A (en) Correlation system for pseudo-random noise signals
ZA927386B (en) A digital transmission system including a receiver that performs coherent demodulation directly at microwave fraquency.
CA2141654A1 (en) Data Demodulation Circuit and Method for Spread Spectrum Communication
US3835404A (en) Extracting circuit for reproducing carrier signals from a multiphase modulated signal
GB1534380A (en) Communications system
MY112310A (en) Acquisition of carrier phase and symbol timing through joint estimation of phase and timing adjustments
ATE179851T1 (de) Mpsk-demodulator
US6738414B2 (en) Radio and communication method using a transmitted intermediate frequency
US4042884A (en) Phase demodulator with offset frequency reference oscillator
US5274672A (en) Optimized clock recovery for an MSK system
EP1333589A3 (de) Empfangen von CPM Spreizspektrumnachrichtenübertragungen
USRE38932E1 (en) Digital demodulator
IE792125L (en) Clock rate recovery circuit
KR100337803B1 (ko) 데이터, 음성 및 다중통신의 비화시스템
WO1998039885A3 (en) Technique to phase lock a transceiving, transmitting, or receiving local oscillator to an incoming carrier signal
JPS6025939B2 (ja) オフセツトｑｐｓｋ同期信号抽出器
JPH0427744B2 (de)
JPH0446422A (ja) スペクトラム拡散配電線搬送通信方式
KR950013059A (ko) 직교 진폭변조신호의 디지탈 복조회로
KR870004597A (ko) 직교 정현/여현 파형을 이용한 데이타 변조 및 복조방식과 데이타 통신 시스템
JPH06268702A (ja) Ｐｓｋ復調方式
Yeh et al. Joint Carrier Phase and Symbol Timing Estimation of MC-CDMA Signaling for Wireless Multimedia
JPH0563614A (ja) 配電線搬送装置

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties