DE69615769D1 - Verfahren zur Signalqualitätsschätzung für Direktsequenzspreizspektrumempfänger - Google Patents

Verfahren zur Signalqualitätsschätzung für Direktsequenzspreizspektrumempfänger

Info

Publication number
DE69615769D1
DE69615769D1 DE69615769T DE69615769T DE69615769D1 DE 69615769 D1 DE69615769 D1 DE 69615769D1 DE 69615769 T DE69615769 T DE 69615769T DE 69615769 T DE69615769 T DE 69615769T DE 69615769 D1 DE69615769 D1 DE 69615769D1
Authority
DE
Germany
Prior art keywords
signal quality
spread spectrum
estimation method
direct sequence
quality estimation
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 - Fee Related
Application number
DE69615769T
Other languages
English (en)
Other versions
DE69615769T2 (de
Inventor
Carl Andren
Perry W Frogge
Leonard V Lucas
James Snell
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.)
Harris Corp
Original Assignee
Harris 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 Harris Corp filed Critical Harris Corp
Application granted granted Critical
Publication of DE69615769D1 publication Critical patent/DE69615769D1/de
Publication of DE69615769T2 publication Critical patent/DE69615769T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H04L1/206—Arrangements for detecting or preventing errors in the information received using signal quality detector for modulated signals
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
DE69615769T 1995-07-31 1996-07-30 Verfahren zur Signalqualitätsschätzung für Direktsequenzspreizspektrumempfänger Expired - Fee Related DE69615769T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/509,586 US5732105A (en) 1995-07-31 1995-07-31 Method of estimating signal quality in a DPSK demodulator

Publications (2)

Publication Number Publication Date
DE69615769D1 true DE69615769D1 (de) 2001-11-15
DE69615769T2 DE69615769T2 (de) 2002-08-01

Family

ID=24027281

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69615769T Expired - Fee Related DE69615769T2 (de) 1995-07-31 1996-07-30 Verfahren zur Signalqualitätsschätzung für Direktsequenzspreizspektrumempfänger

Country Status (4)

Country Link
US (1) US5732105A (de)
EP (1) EP0757461B1 (de)
JP (1) JPH09162940A (de)
DE (1) DE69615769T2 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09270827A (ja) * 1996-04-01 1997-10-14 Advantest Corp デジタル直交変調信号のパラメータ測定装置
US5799038A (en) * 1996-04-30 1998-08-25 Advantest Corporation Method for measuring modulation parameters of digital quadrature-modulated signal
JPH1198108A (ja) * 1997-09-22 1999-04-09 Advantest Corp Ｃｄｍａ信号測定方法
JP3017983B2 (ja) * 1997-11-19 2000-03-13 株式会社ケンウッド 同期捕捉回路
CA2316177C (en) * 1997-12-29 2008-01-29 Kabushiki Kaisha Kenwood Frame-synchronizing-signal capturing circuit of receiver
EP1072136B1 (de) * 1998-04-14 2002-01-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Echophasenabweichungskompensation in einem mehrträgerdemodulationssystem
US7003016B1 (en) * 1998-10-13 2006-02-21 Texas Instruments Incorporated Maximum likelihood timing synchronizers for sampled PSK burst TDMA system
JP3353724B2 (ja) * 1998-11-11 2002-12-03 三菱マテリアル株式会社 無線通信装置、無線通信システム、及び通信制御方法
JP3576913B2 (ja) 2000-02-10 2004-10-13 三菱電機株式会社 スペクトル拡散復調器
KR100758873B1 (ko) * 2005-12-30 2007-09-19 포스데이타 주식회사 무선통신 시스템의 주파수 오프셋 추정 장치 및 방법
JP4760409B2 (ja) * 2006-02-01 2011-08-31 株式会社デンソー 電波時計
CA2623805A1 (en) * 2007-03-02 2008-09-02 Robert A. Hubbs Quality of service based preemptive routing
US8170158B2 (en) * 2007-10-01 2012-05-01 Viasat, Inc. Digital cross-polar interference cancellation
US8284825B2 (en) * 2008-06-06 2012-10-09 Maxim Integrated Products, Inc. Blind channel quality estimator
US8731074B2 (en) * 2008-09-17 2014-05-20 Harris Corporation Communications device using measured frequency offset over time to adjust phase and frequency tracking
US8565324B2 (en) * 2008-09-17 2013-10-22 Harris Corporation Communications device using measured signal-to-noise ratio to adjust phase and frequency tracking

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4146841A (en) * 1977-09-28 1979-03-27 Harris Corporation Technique for combatting jitter in multiple phase transmission system
US4789948A (en) * 1985-09-13 1988-12-06 Hughes Aircraft Company Method and apparatus for determining communications link quality and receiver tracking performance
US5168507A (en) * 1986-08-07 1992-12-01 International Mobile Machines Corporation Automatic adaptive equalizer
US4888793A (en) * 1988-05-06 1989-12-19 Motorola, Inc. Phase correcting DPSK/PSK receiver with digitally stored phase correction derived from received data
JPH0716206B2 (ja) * 1988-08-05 1995-02-22 日本電気株式会社 信号検出器
US5001724A (en) * 1989-01-13 1991-03-19 Hewlett-Packard Company Method and apparatus for measuring phase accuracy and amplitude profile of a continuous-phase-modulated signal
DE4223121A1 (de) * 1992-07-14 1994-01-20 Deutsche Aerospace Verfahren zur Trägerrückgewinnung bei der Demodulation von digital modulierten Signalen und Anordnungen zum Ausführen des Verfahrens
US5490177A (en) * 1994-03-23 1996-02-06 Motorola, Inc. Method and apparatus for determining signal quality

Also Published As

Publication number Publication date
EP0757461A3 (de) 1997-09-03
DE69615769T2 (de) 2002-08-01
EP0757461B1 (de) 2001-10-10
US5732105A (en) 1998-03-24
EP0757461A2 (de) 1997-02-05
JPH09162940A (ja) 1997-06-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee