GB2367988B - An apparatus and a method for calculation of a correlation value corresponding to a frequency error, and a recording medium with a recorded correlation - Google Patents

An apparatus and a method for calculation of a correlation value corresponding to a frequency error, and a recording medium with a recorded correlation

Info

Publication number
GB2367988B
GB2367988B GB0126383A GB0126383A GB2367988B GB 2367988 B GB2367988 B GB 2367988B GB 0126383 A GB0126383 A GB 0126383A GB 0126383 A GB0126383 A GB 0126383A GB 2367988 B GB2367988 B GB 2367988B
Authority
GB
United Kingdom
Prior art keywords
correlation
calculation
recording medium
value corresponding
frequency error
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
GB0126383A
Other versions
GB0126383D0 (en
GB2367988A (en
Inventor
Masahiko Mutoh
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.)
Advantest Corp
Original Assignee
Advantest 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 Advantest Corp filed Critical Advantest Corp
Priority claimed from GB0024576A external-priority patent/GB2359465B/en
Publication of GB0126383D0 publication Critical patent/GB0126383D0/en
Publication of GB2367988A publication Critical patent/GB2367988A/en
Application granted granted Critical
Publication of GB2367988B publication Critical patent/GB2367988B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H04B1/709—Correlator structure
    • 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
    • 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
    • H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
    • H04L27/2275—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals
    • H04L27/2278—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals using correlation techniques, e.g. for spread spectrum signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0046—Open loops
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0063—Elements of loops
    • H04L2027/0065—Frequency error detectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0083—Signalling arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
GB0126383A 1999-10-07 2000-10-06 An apparatus and a method for calculation of a correlation value corresponding to a frequency error, and a recording medium with a recorded correlation Expired - Fee Related GB2367988B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP28635699 1999-10-07
JP967699 1999-12-21
GB0024576A GB2359465B (en) 1999-10-07 2000-10-06 An apparatus and a method for calculation of a correlation value corresponding to a frequency error,and a recording medium with a recorded correlation value

Publications (3)

Publication Number Publication Date
GB0126383D0 GB0126383D0 (en) 2002-01-02
GB2367988A GB2367988A (en) 2002-04-17
GB2367988B true GB2367988B (en) 2002-06-12

Family

ID=27255926

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0126383A Expired - Fee Related GB2367988B (en) 1999-10-07 2000-10-06 An apparatus and a method for calculation of a correlation value corresponding to a frequency error, and a recording medium with a recorded correlation

Country Status (1)

Country Link
GB (1) GB2367988B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0656698A1 (en) * 1993-11-26 1995-06-07 Ntt Mobile Communications Network Inc. A frequency error correction in a DSSS receiver

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0656698A1 (en) * 1993-11-26 1995-06-07 Ntt Mobile Communications Network Inc. A frequency error correction in a DSSS receiver

Also Published As

Publication number Publication date
GB0126383D0 (en) 2002-01-02
GB2367988A (en) 2002-04-17

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20041006