CA2250074C - Apparatus for code tracking in a direct sequence spread spectrum receiver - Google Patents
Apparatus for code tracking in a direct sequence spread spectrum receiver Download PDFInfo
- Publication number
- CA2250074C CA2250074C CA002250074A CA2250074A CA2250074C CA 2250074 C CA2250074 C CA 2250074C CA 002250074 A CA002250074 A CA 002250074A CA 2250074 A CA2250074 A CA 2250074A CA 2250074 C CA2250074 C CA 2250074C
- Authority
- CA
- Canada
- Prior art keywords
- signals
- signal
- correlator
- digital
- inphase
- 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
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
- H04B1/7073—Synchronisation aspects
- H04B1/7085—Synchronisation aspects using a code tracking loop, e.g. a delay-locked loop
-
- 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
- H04B1/709—Correlator structure
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9502992A GB2298110B (en) | 1995-02-16 | 1995-02-16 | Apparatus for providing code tracking in a direct sequence spread spectrum receiver |
PCT/GB1996/000747 WO1997036381A1 (en) | 1995-02-16 | 1996-03-28 | Apparatus for code tracking in a direct sequence spread spectrum receiver |
BR9612584-5A BR9612584A (pt) | 1995-02-16 | 1996-03-28 | Aparelho para rastear codigo em um receptor de espectro difuso de sequencia direta |
DE19681752T DE19681752T1 (de) | 1995-02-16 | 1996-03-28 | Vorrichtung zur Codeverfolgung in einem Direktfolgen-Spreizspektrum-Empfänger |
CN96180312.6A CN1220061A (zh) | 1995-02-16 | 1996-03-28 | 直接序列扩频接收机中用于码元跟踪的设备 |
CA002250074A CA2250074C (en) | 1995-02-16 | 1996-03-28 | Apparatus for code tracking in a direct sequence spread spectrum receiver |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9502992A GB2298110B (en) | 1995-02-16 | 1995-02-16 | Apparatus for providing code tracking in a direct sequence spread spectrum receiver |
PCT/GB1996/000747 WO1997036381A1 (en) | 1995-02-16 | 1996-03-28 | Apparatus for code tracking in a direct sequence spread spectrum receiver |
BR9612584-5A BR9612584A (pt) | 1995-02-16 | 1996-03-28 | Aparelho para rastear codigo em um receptor de espectro difuso de sequencia direta |
CN96180312.6A CN1220061A (zh) | 1995-02-16 | 1996-03-28 | 直接序列扩频接收机中用于码元跟踪的设备 |
CA002250074A CA2250074C (en) | 1995-02-16 | 1996-03-28 | Apparatus for code tracking in a direct sequence spread spectrum receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2250074A1 CA2250074A1 (en) | 1997-10-02 |
CA2250074C true CA2250074C (en) | 2003-02-18 |
Family
ID=27425263
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002250074A Expired - Fee Related CA2250074C (en) | 1995-02-16 | 1996-03-28 | Apparatus for code tracking in a direct sequence spread spectrum receiver |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN1220061A (pt) |
BR (1) | BR9612584A (pt) |
CA (1) | CA2250074C (pt) |
GB (1) | GB2298110B (pt) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6590872B1 (en) * | 1997-12-12 | 2003-07-08 | Thomson Licensing S.A. | Receiver with parallel correlator for acquisition of spread spectrum digital transmission |
DE19839018C2 (de) * | 1998-08-27 | 2002-04-04 | Infineon Technologies Ag | Tracking-Verfahren und Anordnung zur Durchführung des Verfahrens |
GB2345421B (en) * | 1998-12-23 | 2004-05-26 | Symbionics Limted | A direct-sequence spread-sprectrum receiver |
DE10251322B4 (de) | 2002-11-04 | 2006-10-26 | Advanced Micro Devices, Inc., Sunnyvale | Early-Late-Korrelation zur Timingfehlerkorrektur in Datenkommunikationsempfängern |
-
1995
- 1995-02-16 GB GB9502992A patent/GB2298110B/en not_active Expired - Fee Related
-
1996
- 1996-03-28 CN CN96180312.6A patent/CN1220061A/zh active Pending
- 1996-03-28 CA CA002250074A patent/CA2250074C/en not_active Expired - Fee Related
- 1996-03-28 BR BR9612584-5A patent/BR9612584A/pt unknown
Also Published As
Publication number | Publication date |
---|---|
GB2298110B (en) | 1999-06-23 |
GB9502992D0 (en) | 1995-04-05 |
GB2298110A (en) | 1996-08-21 |
CA2250074A1 (en) | 1997-10-02 |
BR9612584A (pt) | 1999-12-28 |
CN1220061A (zh) | 1999-06-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed | ||
MKLA | Lapsed |
Effective date: 20050329 |