NO991789L - FremgangsmÕte og anordning for beregning av korrelasjon - Google Patents
FremgangsmÕte og anordning for beregning av korrelasjonInfo
- 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
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.
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)
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)
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 |
-
1996
- 1996-10-16 FI FI964161A patent/FI964161A/fi unknown
-
1997
- 1997-10-14 WO PCT/FI1997/000624 patent/WO1998017026A2/en not_active Application Discontinuation
- 1997-10-14 AU AU46255/97A patent/AU725684B2/en not_active Ceased
- 1997-10-14 US US09/269,707 patent/US6631173B1/en not_active Expired - Fee Related
- 1997-10-14 JP JP10518049A patent/JP2001502149A/ja active Pending
- 1997-10-14 EP EP97944913A patent/EP0935857A2/en not_active Withdrawn
- 1997-10-14 CN CN97198913.3A patent/CN1234158A/zh active Pending
-
1999
- 1999-04-15 NO NO991789A patent/NO991789D0/no not_active Application Discontinuation
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FC2A | Withdrawal, rejection or dismissal of laid open patent application |