Nothing Special   »   [go: up one dir, main page]

ATE504128T1 - System und verfahren zum senden und empfangen von qam-signalen bei niedrigem signal/rausch- verhältnis - Google Patents

System und verfahren zum senden und empfangen von qam-signalen bei niedrigem signal/rausch- verhältnis

Info

Publication number
ATE504128T1
ATE504128T1 AT04724230T AT04724230T ATE504128T1 AT E504128 T1 ATE504128 T1 AT E504128T1 AT 04724230 T AT04724230 T AT 04724230T AT 04724230 T AT04724230 T AT 04724230T AT E504128 T1 ATE504128 T1 AT E504128T1
Authority
AT
Austria
Prior art keywords
mrow
sub
math
mfrac
msub
Prior art date
Application number
AT04724230T
Other languages
English (en)
Inventor
Leonid Letounov
Aliaksandr Hryhoryeu
Victor Gunter
Original Assignee
Modesat Comm Ou
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 Modesat Comm Ou filed Critical Modesat Comm Ou
Application granted granted Critical
Publication of ATE504128T1 publication Critical patent/ATE504128T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/362—Modulation using more than one carrier, e.g. with quadrature carriers, separately amplitude modulated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3818—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers
    • H04L27/3827—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers in which the carrier is recovered using only the demodulated baseband signals

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)
  • Transmitters (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
AT04724230T 2004-03-30 2004-03-30 System und verfahren zum senden und empfangen von qam-signalen bei niedrigem signal/rausch- verhältnis ATE504128T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/BY2004/000008 WO2005096539A1 (en) 2004-03-30 2004-03-30 System and method for transmission and reception of qam signals at low signal to noise ratio

Publications (1)

Publication Number Publication Date
ATE504128T1 true ATE504128T1 (de) 2011-04-15

Family

ID=35064139

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04724230T ATE504128T1 (de) 2004-03-30 2004-03-30 System und verfahren zum senden und empfangen von qam-signalen bei niedrigem signal/rausch- verhältnis

Country Status (10)

Country Link
US (1) US7433415B2 (de)
EP (1) EP1730874B1 (de)
JP (1) JP4408446B2 (de)
CN (1) CN100588146C (de)
AT (1) ATE504128T1 (de)
CA (1) CA2566295C (de)
DE (1) DE602004032058D1 (de)
EA (1) EA009411B1 (de)
IL (1) IL178363A (de)
WO (1) WO2005096539A1 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2464962B (en) * 2008-10-31 2011-01-26 Motorola Inc RF transmitter and method of operation
KR101513042B1 (ko) * 2008-12-02 2015-04-17 엘지전자 주식회사 신호 전송 방법 및 전송 장치
US8275017B2 (en) 2009-02-05 2012-09-25 Modesat Communications Ou Method of packet transmission and reception of quadrature amplitude modulated signals in a frequency hopping radio system
JPWO2012070305A1 (ja) 2010-11-26 2014-05-19 日本電気株式会社 Ｐｌｌ回路
CN106301589B (zh) * 2015-05-15 2019-06-04 中兴通讯股份有限公司 一种正交振幅调制信号的相位模糊处理方法及装置
CN114401474B (zh) * 2022-01-13 2024-03-01 北京中电慧声科技有限公司 一种数字网络音频处理器

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU866777A1 (ru) * 1979-12-29 1981-09-23 Московский Институт Инженеров Гражданской Авиации Устройство дл цифроаналогового формировани однополосных сигналов с амплитудно-фазовой модул цией
CN1032099C (zh) * 1992-03-26 1996-06-19 松下电器产业株式会社 通信系统
US5809083A (en) * 1994-11-23 1998-09-15 At&T Wireless Services, Inc. Differentially encoded pilot word system and method for wireless transmissions of digital data
US5659578A (en) * 1994-11-23 1997-08-19 At&T Wireless Services, Inc. High rate Reed-Solomon concatenated trellis coded 16 star QAM system for transmission of data over cellular mobile radio
JP3691936B2 (ja) * 1997-06-26 2005-09-07 株式会社東芝 多値直交振幅変調装置及び多値直交振幅変調方法
WO2000027066A2 (en) * 1998-11-03 2000-05-11 Broadcom Corporation Dual mode qam/vsb receiver
WO2000035195A1 (en) * 1998-12-08 2000-06-15 Koninklijke Philips Electronics N.V. Data transmission in a television signal using quadrature amplitude modulation
EP2259530B1 (de) * 1999-07-28 2019-03-27 Panasonic Intellectual Property Corporation of America Gerät für das Aussenden und Empfangen von Daten sowie Verfahren für die digitale Funkübertragung
US6535549B1 (en) * 1999-09-14 2003-03-18 Harris Canada, Inc. Method and apparatus for carrier phase tracking
RU2210860C1 (ru) * 2002-01-14 2003-08-20 Федеральное Государственное унитарное предприятие Воронежский научно-исследовательский институт связи Система связи с широкополосными сигналами
US6606010B1 (en) * 2002-01-30 2003-08-12 The Aerospace Corporation Quadrature vestigial sideband digital communications method

Also Published As

Publication number Publication date
CN1926797A (zh) 2007-03-07
WO2005096539A1 (en) 2005-10-13
EA200601609A1 (ru) 2007-04-27
CN100588146C (zh) 2010-02-03
EP1730874A4 (de) 2009-07-08
JP2007531421A (ja) 2007-11-01
CA2566295A1 (en) 2005-10-13
EA009411B1 (ru) 2007-12-28
EP1730874A1 (de) 2006-12-13
DE602004032058D1 (de) 2011-05-12
WO2005096539A8 (en) 2005-12-08
JP4408446B2 (ja) 2010-02-03
IL178363A (en) 2010-12-30
EP1730874B1 (de) 2011-03-30
CA2566295C (en) 2010-09-14
US20070025466A1 (en) 2007-02-01
US7433415B2 (en) 2008-10-07
IL178363A0 (en) 2007-02-11

Similar Documents

Publication Publication Date Title
JP4112632B2 (ja) 固定分割率および可変拡散コード長を利用する多重率直接シーケンスアーキテクチュア
IL178363A0 (en) System and method for transmission and reception of qam signals at low signal to noise ratio
CN101986632B (zh) 一种基于相关延迟-差分混沌键控调制通信方法
EP0540664A1 (de) Verfahren und einrichtung zur phasendetektion mittels eines oberflächenwellenkorrelators
EP0782288B1 (de) Spreizspektrumnachrichtenübertragungssystem
JPH0799487A (ja) スペクトラム拡散通信装置および無線通信装置
US3723880A (en) System for the transmission of multilevel data signals
Khairullin et al. Selection of the initial shift for PSK signal constellation in the presence of intersymbol interference
RU2279183C2 (ru) Способ передачи информации в системе связи с широкополосными сигналами
JP2016524384A (ja) データを表す信号、そのような信号を生成するための方法およびデバイスならびに表されたデータをそのような信号から決定するための方法およびデバイス
RU2007126507A (ru) Способ передачи информации с помощью шумоподобных сигналов и устройство для его реализации
JP3639839B2 (ja) スペクトラム拡散方式の通信装置、及び、その高速同期確立法
EP0358581A2 (de) Anordnung zur Einzelworterkennung
RU2248097C2 (ru) Система передачи информации
RU2011129413A (ru) Способ и устройство устранения влияния сдвига фазы и эффекта допплера в системах детектирования и связи
Bhandarkar et al. Realization and performance analysis of FPGA based offset quadrature phase shift keying (OQPSK) modem
RU2325041C1 (ru) Устройство слежения за частотой шумоподобных сигналов
CN105048997A (zh) 匹配滤波器复用装置和方法、数字通信接收机
CN112769537B (zh) 一种卫星双向时间比对数传信号解调装置、系统和方法
US20040179628A1 (en) Method and apparatus for digital data transmission and reception using synthetically generated frequency
Drumright Real-Time Detection of Spread Spectrum Sic Signals: By the Decorrelation Method on a DSPPlatform
Kazakov et al. Development of OCDM system to the organization of information exchange in uav group
US10313166B2 (en) Backward-compatible signal variations for data augmentation
Ali Implementation of a Software Defined Spread Spectrum Communication System
JP2840418B2 (ja) スペクトル拡散パルス位置変調通信方式

Legal Events

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