BR9712698A - Sistema para aquisição de código de prouduto de kronecker - Google Patents

Sistema para aquisição de código de prouduto de kronecker

Info

Publication number
BR9712698A
BR9712698A BR9712698-5A BR9712698A BR9712698A BR 9712698 A BR9712698 A BR 9712698A BR 9712698 A BR9712698 A BR 9712698A BR 9712698 A BR9712698 A BR 9712698A
Authority
BR
Brazil
Prior art keywords
product code
kronecker product
mode
acquisition
acquisition system
Prior art date
Application number
BR9712698-5A
Other languages
English (en)
Inventor
David T Magill
Original Assignee
Stanford Telecomm Inc
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 Stanford Telecomm Inc filed Critical Stanford Telecomm Inc
Publication of BR9712698A publication Critical patent/BR9712698A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Radio Relay Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Measuring Volume Flow (AREA)

Abstract

Patente de Invenção: <B>"SISTEMA PARA AQUISIçãO DE CóDIGO DE PRODUTO DE KRONECKER"<D>. é apresentada uma estrutura e código de produto de Kronecker para uma palavra de sincronização, a qual permite o uso de filtro combinado seq³êncial de modo duplo. Esse filtro combinado permite uma grande redução no tempo de aquisição, uma vez que o número de binários de freq³ência que devem ser pesquisados é grandemente reduzido, quando há uma grande incerteza de freq³ência. No primeiro modo de operação, a saída de um filtro combinado com o código de taxa elevada é não coerentemente integrada em um integrador de pós-detecção para obter aquisição confiável, mas ambígua, da palavra de sincronização. No segundo modo de operação, a ambig³idade é resolvida.
BR9712698-5A 1996-10-29 1997-10-29 Sistema para aquisição de código de prouduto de kronecker BR9712698A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/739,318 US6049576A (en) 1996-10-29 1996-10-29 Kronecker product code acquisition system
PCT/US1997/019159 WO1998019390A1 (en) 1996-10-29 1997-10-29 Kronecker product code acquisition system

Publications (1)

Publication Number Publication Date
BR9712698A true BR9712698A (pt) 1999-10-26

Family

ID=24971750

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9712698-5A BR9712698A (pt) 1996-10-29 1997-10-29 Sistema para aquisição de código de prouduto de kronecker

Country Status (7)

Country Link
US (1) US6049576A (pt)
EP (1) EP0938775A1 (pt)
JP (1) JP2001519977A (pt)
AU (1) AU5086098A (pt)
BR (1) BR9712698A (pt)
CA (1) CA2268854C (pt)
WO (1) WO1998019390A1 (pt)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2955576B1 (ja) * 1998-08-28 1999-10-04 株式会社東芝 ディジタル通信システムとその送信装置および受信装置、ならびにフレーム同期検出回路
KR100661378B1 (ko) 1998-12-14 2006-12-27 인터디지탈 테크날러지 코포레이션 임의 접근 채널 프리앰블 감지
DE60045328D1 (de) * 1999-03-22 2011-01-20 Texas Instruments Inc Mehrstufige pn-kode-erfassungschaltung und -verfahren
US6831929B1 (en) * 1999-03-22 2004-12-14 Texas Instruments Incorporated Multistage PN code aquisition circuit and method
US7412018B1 (en) 1999-05-26 2008-08-12 Alcatel Usa Sourcing, L.P. Rapid acquisition synchronization sequences for direct sequence spread spectrum systems using code time offsets
US7103027B2 (en) 1999-12-14 2006-09-05 Interdigital Technology Corporation Random access channel preamble detection
US7319822B2 (en) * 2001-12-20 2008-01-15 Victor Yeeman Lo System and method of space-time equalization to mitigate effects of fading and scintillation for wireless communication
US7072618B1 (en) 2001-12-21 2006-07-04 Meshnetworks, Inc. Adaptive threshold selection system and method for detection of a signal in the presence of interference
US6792037B2 (en) * 2002-02-28 2004-09-14 Interdigital Technology Corporation Apparatus and method of searching for known sequences
CN1283059C (zh) * 2003-01-23 2006-11-01 上海贝尔阿尔卡特股份有限公司 一种载频同步的方法和装置
US7602835B1 (en) * 2004-08-10 2009-10-13 L-3 Communications Corporation Multi-rate spread spectrum composite code
US7606292B1 (en) * 2005-05-24 2009-10-20 L-3 Communications Corporation Sub-sequence accumulation filter and method
US7801107B2 (en) * 2006-05-25 2010-09-21 Mitsubishi Electric Research Laboratories, Inc. Method for transmitting a communications packet in a wireless communications network
RU2515603C2 (ru) * 2008-05-06 2014-05-20 Конинклейке Филипс Электроникс Н.В. Осветительная система и способ обработки света

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3167738A (en) * 1962-05-22 1965-01-26 Everett C Westerfield Sequential matched filter
US4291409A (en) * 1978-06-20 1981-09-22 The Mitre Corporation Spread spectrum communications method and apparatus
AU1898492A (en) * 1991-04-02 1992-11-02 Aware, Inc. Channel codec apparatus and method utilizing flat codes
US5428647A (en) * 1992-12-07 1995-06-27 Motorola, Inc. Method and apparatus for synchronizing a received signal in a digital radio communication system
US5745484A (en) * 1995-06-05 1998-04-28 Omnipoint Corporation Efficient communication system using time division multiplexing and timing adjustment control
US5696762A (en) * 1996-03-25 1997-12-09 Stanford Telecommunications, Inc. Rapid-acquisition access channel scheme for CDMA systems

Also Published As

Publication number Publication date
WO1998019390A1 (en) 1998-05-07
CA2268854C (en) 2002-12-17
CA2268854A1 (en) 1998-05-07
EP0938775A1 (en) 1999-09-01
AU5086098A (en) 1998-05-22
JP2001519977A (ja) 2001-10-23
US6049576A (en) 2000-04-11

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Legal Events

Date Code Title Description
FB34 Technical and formal requirements: requirement - article 34 of industrial property law
FA14 Dismissal: dismissal - article 34 of industrial property law
B11T Dismissal of application maintained [chapter 11.20 patent gazette]