ZA927386B - A digital transmission system including a receiver that performs coherent demodulation directly at microwave fraquency. - Google Patents

A digital transmission system including a receiver that performs coherent demodulation directly at microwave fraquency.

Info

Publication number
ZA927386B
ZA927386B ZA927386A ZA927386A ZA927386B ZA 927386 B ZA927386 B ZA 927386B ZA 927386 A ZA927386 A ZA 927386A ZA 927386 A ZA927386 A ZA 927386A ZA 927386 B ZA927386 B ZA 927386B
Authority
ZA
South Africa
Prior art keywords
receiver
fraquency
microwave
transmission system
system including
Prior art date
Application number
ZA927386A
Other languages
English (en)
Inventor
Patrick Janer
Original Assignee
Alcatel Nv
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 Nv filed Critical Alcatel Nv
Publication of ZA927386B publication Critical patent/ZA927386B/xx

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
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
    • H04L27/2071—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the data are represented by the carrier phase, e.g. systems with differential coding
    • 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
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/0032—Correction of carrier offset at baseband and passband
    • 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)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transceivers (AREA)
  • Electric Clocks (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
ZA927386A 1991-09-26 1992-09-25 A digital transmission system including a receiver that performs coherent demodulation directly at microwave fraquency. ZA927386B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR919111855A FR2681994B1 (fr) 1991-09-26 1991-09-26 Dispositif de transmission numerique comportant un recepteur a demodulation coherente realisee directement en hyperfrequence.

Publications (1)

Publication Number Publication Date
ZA927386B true ZA927386B (en) 1993-04-23

Family

ID=9417318

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA927386A ZA927386B (en) 1991-09-26 1992-09-25 A digital transmission system including a receiver that performs coherent demodulation directly at microwave fraquency.

Country Status (12)

Country Link
US (1) US5416803A (de)
EP (1) EP0559883B1 (de)
JP (1) JP3173788B2 (de)
AT (1) ATE155303T1 (de)
AU (1) AU663122B2 (de)
CA (1) CA2096942C (de)
DE (1) DE69220774T2 (de)
ES (1) ES2103382T3 (de)
FI (1) FI932349A0 (de)
FR (1) FR2681994B1 (de)
WO (1) WO1993006677A1 (de)
ZA (1) ZA927386B (de)

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5774502A (en) * 1996-11-19 1998-06-30 Harris Corporation Fully integrated data receiver and method for receiving on/off keyed AM/PDSK modulated signals
US6175728B1 (en) * 1997-03-05 2001-01-16 Nec Corporation Direct conversion receiver capable of canceling DC offset voltages
US6091940A (en) 1998-10-21 2000-07-18 Parkervision, Inc. Method and system for frequency up-conversion
US7515896B1 (en) 1998-10-21 2009-04-07 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US6694128B1 (en) 1998-08-18 2004-02-17 Parkervision, Inc. Frequency synthesizer using universal frequency translation technology
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US7065327B1 (en) 1998-09-10 2006-06-20 Intel Corporation Single-chip CMOS direct-conversion transceiver
US6813485B2 (en) 1998-10-21 2004-11-02 Parkervision, Inc. Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
US6049706A (en) 1998-10-21 2000-04-11 Parkervision, Inc. Integrated frequency translation and selectivity
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US6061555A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for ensuring reception of a communications signal
US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US6704549B1 (en) 1999-03-03 2004-03-09 Parkvision, Inc. Multi-mode, multi-band communication system
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US6853690B1 (en) 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
CA2281236C (en) 1999-09-01 2010-02-09 Tajinder Manku Direct conversion rf schemes using a virtually generated local oscillator
US6396355B1 (en) * 2000-04-12 2002-05-28 Rockwell Collins, Inc. Signal generator having fine resolution and low phase noise
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US7154440B2 (en) * 2001-04-11 2006-12-26 Kyocera Wireless Corp. Phase array antenna using a constant-gain phase shifter
US7746292B2 (en) * 2001-04-11 2010-06-29 Kyocera Wireless Corp. Reconfigurable radiation desensitivity bracket systems and methods
US6690251B2 (en) * 2001-04-11 2004-02-10 Kyocera Wireless Corporation Tunable ferro-electric filter
CN1294673C (zh) * 2001-04-11 2007-01-10 基奥赛拉无线公司 可调谐多路复用器
US7394430B2 (en) * 2001-04-11 2008-07-01 Kyocera Wireless Corp. Wireless device reconfigurable radiation desensitivity bracket systems and methods
US7174147B2 (en) * 2001-04-11 2007-02-06 Kyocera Wireless Corp. Bandpass filter with tunable resonator
US7164329B2 (en) 2001-04-11 2007-01-16 Kyocera Wireless Corp. Tunable phase shifer with a control signal generator responsive to DC offset in a mixed signal
US7221243B2 (en) * 2001-04-11 2007-05-22 Kyocera Wireless Corp. Apparatus and method for combining electrical signals
US7071776B2 (en) 2001-10-22 2006-07-04 Kyocera Wireless Corp. Systems and methods for controlling output power in a communication device
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US7184727B2 (en) * 2002-02-12 2007-02-27 Kyocera Wireless Corp. Full-duplex antenna system and method
US7176845B2 (en) * 2002-02-12 2007-02-13 Kyocera Wireless Corp. System and method for impedance matching an antenna to sub-bands in a communication band
US7180467B2 (en) * 2002-02-12 2007-02-20 Kyocera Wireless Corp. System and method for dual-band antenna matching
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
US7720443B2 (en) 2003-06-02 2010-05-18 Kyocera Wireless Corp. System and method for filtering time division multiple access telephone communications
US7248845B2 (en) * 2004-07-09 2007-07-24 Kyocera Wireless Corp. Variable-loss transmitter and method of operation
US7548762B2 (en) * 2005-11-30 2009-06-16 Kyocera Corporation Method for tuning a GPS antenna matching network
CN114978206B (zh) * 2022-05-17 2023-07-25 清华大学 准平衡频移键控调制方法及准平衡调频发射机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2526617A1 (fr) * 1982-05-10 1983-11-10 Sintra Alcatel Sa Systeme de transmission synchrone de donnees a l'aide d'une porteuse modulee d'amplitude d'enveloppe constante
FR2544571B1 (fr) * 1983-04-12 1985-06-14 Prigent Jean Pierre Recuperation des frequences de porteuse et de rythme pour les systemes de transmission numerique a modulation a etats de phase ou d'amplitude et a demodulation coherente
US4879728A (en) * 1989-01-31 1989-11-07 American Telephone And Telegraph Company, At&T Bell Laboratories DPSK carrier acquisition and tracking arrangement
US5150384A (en) * 1990-09-28 1992-09-22 Motorola, Inc. Carrier recovery method and apparatus having an adjustable response time determined by carrier signal parameters
US5283780A (en) * 1990-10-18 1994-02-01 Stanford Telecommunications, Inc. Digital audio broadcasting system
US5140284A (en) * 1991-02-20 1992-08-18 Telefonaktiebolaget L M Ericsson Broad band frequency synthesizer for quick frequency retuning

Also Published As

Publication number Publication date
AU663122B2 (en) 1995-09-28
CA2096942A1 (fr) 1993-03-27
FR2681994A1 (fr) 1993-04-02
EP0559883B1 (de) 1997-07-09
ATE155303T1 (de) 1997-07-15
JP3173788B2 (ja) 2001-06-04
FR2681994B1 (fr) 1994-09-30
FI932349A (fi) 1993-05-24
AU2763492A (en) 1993-04-27
DE69220774T2 (de) 1997-11-06
DE69220774D1 (de) 1997-08-14
WO1993006677A1 (fr) 1993-04-01
EP0559883A1 (de) 1993-09-15
JPH06502977A (ja) 1994-03-31
ES2103382T3 (es) 1997-09-16
CA2096942C (fr) 1998-02-03
FI932349A0 (fi) 1993-05-24
US5416803A (en) 1995-05-16

Similar Documents

Publication Publication Date Title
ZA927386B (en) A digital transmission system including a receiver that performs coherent demodulation directly at microwave fraquency.
EP0726662A3 (de) Empfänger und Senderempfänger
ES8703070A1 (es) Receptor para senales de banda extendida
ATE112905T1 (de) Digitaler empfänger mit unter-nyquistabtastrate.
MX9603195A (es) Tecnica de modulacion de cancelacion de ruido de fase en oscilador local.
EP0729238A3 (de) Sender und Sendeempfänger
MY109097A (en) An adaptive phase locked loop
AU6524186A (en) Radio communication receiver with apparatus for altering bit rate of the receiver
EP0823801A3 (de) Taktverteilung mit Hilfe eines unterdrückten Trägers zur Verminderung elektromagnetischer Interferenz
HK1049745A1 (en) Apparatus for doppler correction in a wireless communications system.
EP0783211A3 (de) Einrichtung zur Fernablesung von Zählern
GB2344949A (en) Apparatus and method for radio communication
JPS5599851A (en) Mobile data reception system
ES2090964T3 (es) Desmodulador para señales de datos de radio.
EP0732824A3 (de) Synchronisierung eines 4-bit Paketierers
FR2706711B1 (fr) Procédé et dispositif de démodulation de signal numérique.
EP0392647A3 (de) Einrichtungen mit Frequenzumtastung für Stromschleife
WO2002039683A3 (en) Apparatus and method for sending and receiving data signals over a clock signal line by pulse with modulation
GB2366169A (en) A method and an arrangement for preventing metastability
EP0345515A3 (de) Verfahren zur Trägerrückgewinnung
EP0246530A3 (en) Decoding system of data signals
AU1806097A (en) Fsk receiver
ES2120904A1 (es) Sistema de transmision de datos con espectro extendido a traves de la red electrica.
ETZEL Hardware design of a digital single-sideband generator[M. S. Thesis]
Fleming FM modulators using a phase locked loop