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IL116781A - Method and instrument for estimating frequency deviation in a coherent receiver - Google Patents

Method and instrument for estimating frequency deviation in a coherent receiver

Info

Publication number
IL116781A
IL116781A IL11678196A IL11678196A IL116781A IL 116781 A IL116781 A IL 116781A IL 11678196 A IL11678196 A IL 11678196A IL 11678196 A IL11678196 A IL 11678196A IL 116781 A IL116781 A IL 116781A
Authority
IL
Israel
Prior art keywords
signal
offset
sequence
filtered
estimate
Prior art date
Application number
IL11678196A
Other languages
English (en)
Hebrew (he)
Other versions
IL116781A0 (en
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of IL116781A0 publication Critical patent/IL116781A0/xx
Publication of IL116781A publication Critical patent/IL116781A/en

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
    • H04B1/7087—Carrier synchronisation aspects
    • 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
    • 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
    • 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
    • H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
    • H04L27/2332—Demodulator circuits; Receiver circuits using non-coherent demodulation using a non-coherent carrier
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/003—Correction of carrier offset at baseband only
    • 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
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0071—Control of loops
    • H04L2027/0079—Switching between loops

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
IL11678196A 1995-03-10 1996-01-16 Method and instrument for estimating frequency deviation in a coherent receiver IL116781A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/402,260 US5640431A (en) 1995-03-10 1995-03-10 Method and apparatus for offset frequency estimation for a coherent receiver

Publications (2)

Publication Number Publication Date
IL116781A0 IL116781A0 (en) 1996-05-14
IL116781A true IL116781A (en) 1999-01-26

Family

ID=23591186

Family Applications (1)

Application Number Title Priority Date Filing Date
IL11678196A IL116781A (en) 1995-03-10 1996-01-16 Method and instrument for estimating frequency deviation in a coherent receiver

Country Status (4)

Country Link
US (1) US5640431A (fi)
CA (1) CA2189343C (fi)
FI (1) FI114423B (fi)
IL (1) IL116781A (fi)

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Also Published As

Publication number Publication date
CA2189343C (en) 2001-01-02
IL116781A0 (en) 1996-05-14
US5640431A (en) 1997-06-17
FI964491L (fi) 1996-11-08
CA2189343A1 (en) 1996-09-26
FI114423B (fi) 2004-10-15
FI964491A0 (fi) 1996-11-08

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MM9K Patent not in force due to non-payment of renewal fees