NO991789L - FremgangsmÕte og anordning for beregning av korrelasjon - Google Patents

FremgangsmÕte og anordning for beregning av korrelasjon

Info

Publication number
NO991789L
NO991789L NO991789A NO991789A NO991789L NO 991789 L NO991789 L NO 991789L NO 991789 A NO991789 A NO 991789A NO 991789 A NO991789 A NO 991789A NO 991789 L NO991789 L NO 991789L
Authority
NO
Norway
Prior art keywords
sample
calculating correlation
delay
correlation
system comprises
Prior art date
Application number
NO991789A
Other languages
English (en)
Other versions
NO991789D0 (no
Inventor
Jouni Siirtola
Heli Vootojo
Original Assignee
Nokia Telecommunications Oy
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 Nokia Telecommunications Oy filed Critical Nokia Telecommunications Oy
Publication of NO991789L publication Critical patent/NO991789L/no
Publication of NO991789D0 publication Critical patent/NO991789D0/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Error Detection And Correction (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)

Abstract

Oppfinnelsen angår en fremgangsmåte og et system for å beregne korrela- sjon mellom en første og en andre kodesekvens, som omfatter et antall sampler og har en endelig lengde. Systemet omfatter en anordning (205) for å estimere forsinkelsen mellom kodesekvensene, og en anordning (206) for å sette kodene i en ønsket fase i forhold til hverandre, på grunnlag av forsinkelsen mellom kodese- kvensene, ved å rotere den første sekvensen. For å tillate at korrelasjon beregnes hurtig og enkelt, omfatter systemet en anordning (210) for å sammenligne se- kvensene med hverandre i parallell modus, sampel for sampel, og anordninger (212, 214) for å legge sammen resultatene av de sampel-spesifikke sammenlig- ningene.
NO991789A 1996-10-16 1999-04-15 FremgangsmÕte og anordning for beregning av korrelasjon NO991789D0 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI964161A FI964161A (fi) 1996-10-16 1996-10-16 Menetelmä ja järjestely korrelaation laskemiseksi
PCT/FI1997/000624 WO1998017026A2 (en) 1996-10-16 1997-10-14 Method and arrangement for calculating correlation

Publications (2)

Publication Number Publication Date
NO991789L true NO991789L (no) 1999-04-15
NO991789D0 NO991789D0 (no) 1999-04-15

Family

ID=8546887

Family Applications (1)

Application Number Title Priority Date Filing Date
NO991789A NO991789D0 (no) 1996-10-16 1999-04-15 FremgangsmÕte og anordning for beregning av korrelasjon

Country Status (8)

Country Link
US (1) US6631173B1 (no)
EP (1) EP0935857A2 (no)
JP (1) JP2001502149A (no)
CN (1) CN1234158A (no)
AU (1) AU725684B2 (no)
FI (1) FI964161A (no)
NO (1) NO991789D0 (no)
WO (1) WO1998017026A2 (no)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001050646A1 (en) * 1999-12-30 2001-07-12 Morphics Technology, Inc. A configurable multimode despreader for spread spectrum applications
US7139306B2 (en) 2001-03-14 2006-11-21 Mercury Computer Systems, Inc. Wireless communication systems and methods for long-code communications for regenerative multiple user detection involving pre-maximal combination matched filter outputs
US7187736B2 (en) * 2003-02-13 2007-03-06 Motorola Inc. Reducing interference in a GSM communication system
US20050080576A1 (en) * 2003-10-10 2005-04-14 Dickerson Robert T. Method and system for frequency domain time correlation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4400790A (en) * 1981-01-06 1983-08-23 E-Systems, Inc. Transversal correlator
GB2111736B (en) * 1981-11-12 1986-02-12 Standard Telephones Cables Ltd Radar or sonar system
US4538281A (en) 1982-05-06 1985-08-27 Rockwell International Corporation Adaptive acquisition of multiple access codes
US5305349A (en) * 1993-04-29 1994-04-19 Ericsson Ge Mobile Communications Inc. Quantized coherent rake receiver
US5768306A (en) * 1993-09-06 1998-06-16 Ntt Mobile Communications Network, Inc. Sliding correlator used in CDMA systems to establish initial synchronization
JP2655068B2 (ja) * 1993-12-30 1997-09-17 日本電気株式会社 スペクトラム拡散受信機
US5680414A (en) * 1994-09-09 1997-10-21 Omnipoint Corporation Synchronization apparatus and method for spread spectrum receiver
US6249542B1 (en) * 1997-03-28 2001-06-19 Sirf Technology, Inc. Multipath processing for GPS receivers

Also Published As

Publication number Publication date
WO1998017026A3 (en) 1998-06-11
WO1998017026A2 (en) 1998-04-23
FI964161A0 (fi) 1996-10-16
JP2001502149A (ja) 2001-02-13
FI964161A (fi) 1998-04-17
AU725684B2 (en) 2000-10-19
CN1234158A (zh) 1999-11-03
EP0935857A2 (en) 1999-08-18
NO991789D0 (no) 1999-04-15
US6631173B1 (en) 2003-10-07
AU4625597A (en) 1998-05-11

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