DE60123175D1 - QAM-Übertragung - Google Patents

QAM-Übertragung

Info

Publication number
DE60123175D1
DE60123175D1 DE60123175T DE60123175T DE60123175D1 DE 60123175 D1 DE60123175 D1 DE 60123175D1 DE 60123175 T DE60123175 T DE 60123175T DE 60123175 T DE60123175 T DE 60123175T DE 60123175 D1 DE60123175 D1 DE 60123175D1
Authority
DE
Germany
Prior art keywords
qam transmission
qam
transmission
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE60123175T
Other languages
English (en)
Other versions
DE60123175T2 (de
Inventor
Toshiyuki Akiyama
Tetsuomi Ikeda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Kokusai Electric Inc
Japan Broadcasting Corp
Original Assignee
Hitachi Kokusai Electric Inc
Nippon Hoso Kyokai NHK
Japan Broadcasting 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 Hitachi Kokusai Electric Inc, Nippon Hoso Kyokai NHK, Japan Broadcasting Corp filed Critical Hitachi Kokusai Electric Inc
Publication of DE60123175D1 publication Critical patent/DE60123175D1/de
Application granted granted Critical
Publication of DE60123175T2 publication Critical patent/DE60123175T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04L27/345—Modifications of the signal space to allow the transmission of additional information
    • H04L27/3461—Modifications of the signal space to allow the transmission of additional information in order to transmit a subchannel
    • 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
    • H04L27/345—Modifications of the signal space to allow the transmission of additional information
    • H04L27/3455—Modifications of the signal space to allow the transmission of additional information in order to facilitate carrier recovery at the receiver end, e.g. by transmitting a pilot or by using additional signal points to allow the detection of rotations

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
DE60123175T 2000-06-23 2001-06-21 QAM-Übertragung Expired - Lifetime DE60123175T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000189882A JP3685687B2 (ja) 2000-06-23 2000-06-23 ディジタル変調伝送方法
JP2000189882 2000-06-23

Publications (2)

Publication Number Publication Date
DE60123175D1 true DE60123175D1 (de) 2006-11-02
DE60123175T2 DE60123175T2 (de) 2007-09-20

Family

ID=18689457

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60123175T Expired - Lifetime DE60123175T2 (de) 2000-06-23 2001-06-21 QAM-Übertragung

Country Status (4)

Country Link
US (1) US6965650B2 (de)
EP (1) EP1172984B1 (de)
JP (1) JP3685687B2 (de)
DE (1) DE60123175T2 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10005287A1 (de) * 2000-02-07 2001-08-09 Rohde & Schwarz Verfahren zum Bestimmen der Restträgerleistung bei einem nach dem DVB-T-Standard im 8K-Modus QAM-modulierten Multiträgersignal
EP1452592A4 (de) 2001-11-08 2006-02-15 Japan Science & Tech Agency Transposongene aus reis
US7483368B2 (en) * 2003-09-30 2009-01-27 Hitachi Kokusai Electric Inc. Method and detecting carrier shift amount in digital transmission signal, method of correcting carrier shift amount, and receiver employing these methods
JP4227633B2 (ja) * 2006-07-19 2009-02-18 テクトロニクス・インターナショナル・セールス・ゲーエムベーハー 特性表示装置と特性表示方法
US8295779B2 (en) * 2008-10-31 2012-10-23 Interdigital Patent Holdings, Inc. Method and apparatus for wireless transmissions using multiple uplink carriers
CN103763233B (zh) * 2014-01-08 2017-02-08 西安电子科技大学 基于数字调制解调的gsm外辐射雷达信号处理方法
CN106708021B (zh) * 2017-01-10 2020-03-17 株洲中车时代电气股份有限公司 一种轨道交通车辆自动化测试的信号同步赋值方法及装置
CN113518048B (zh) * 2020-04-10 2022-06-14 华为技术有限公司 一种信道参数计算方法及装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59122158A (ja) 1982-12-28 1984-07-14 Fujitsu Ltd 多値直交振幅変調における補助信号插入方式および回路
JPH0884166A (ja) 1994-09-12 1996-03-26 Fujitsu Ten Ltd 自動周波数制御回路
US6538986B2 (en) * 1996-09-02 2003-03-25 Stmicroelectronics N.V. Data transmission system and method using nQAM constellation with a control channel superimposed on a user data channel
JP3156635B2 (ja) 1997-05-30 2001-04-16 日本ビクター株式会社 直交周波数分割多重信号伝送方法並びに直交周波数分割多重信号送信装置及びそれに用いるｉｄｆｔ演算装置
JP3166705B2 (ja) * 1998-04-16 2001-05-14 松下電器産業株式会社 無線装置及び送信方法
JP4409639B2 (ja) * 1998-06-10 2010-02-03 日本放送協会 回り込みキャンセラ
JP2001148676A (ja) 1999-11-18 2001-05-29 Nippon Hoso Kyokai <Nhk> 地上デジタル放送受信装置

Also Published As

Publication number Publication date
US6965650B2 (en) 2005-11-15
EP1172984A2 (de) 2002-01-16
DE60123175T2 (de) 2007-09-20
JP3685687B2 (ja) 2005-08-24
JP2002009729A (ja) 2002-01-11
EP1172984A3 (de) 2005-06-08
EP1172984B1 (de) 2006-09-20
US20010055345A1 (en) 2001-12-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition