GB2379105B - Improvements relating to fast frequency-hopping modulators and demodulators - Google Patents

Improvements relating to fast frequency-hopping modulators and demodulators

Info

Publication number
GB2379105B
GB2379105B GB0120642A GB0120642A GB2379105B GB 2379105 B GB2379105 B GB 2379105B GB 0120642 A GB0120642 A GB 0120642A GB 0120642 A GB0120642 A GB 0120642A GB 2379105 B GB2379105 B GB 2379105B
Authority
GB
United Kingdom
Prior art keywords
demodulators
hopping
modulators
improvements relating
fast frequency
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
GB0120642A
Other versions
GB0120642D0 (en
GB2379105A (en
Inventor
Martin Schwab
John Domokos
Christopher Nigel Smith
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.)
Roke Manor Research Ltd
Original Assignee
Roke Manor Research Ltd
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 Roke Manor Research Ltd filed Critical Roke Manor Research Ltd
Priority to GB0120642A priority Critical patent/GB2379105B/en
Priority to GB0220522A priority patent/GB2379106B/en
Publication of GB0120642D0 publication Critical patent/GB0120642D0/en
Priority to PCT/EP2002/009116 priority patent/WO2003019809A1/en
Priority to CNB028165608A priority patent/CN1314211C/en
Publication of GB2379105A publication Critical patent/GB2379105A/en
Application granted granted Critical
Publication of GB2379105B publication Critical patent/GB2379105B/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
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/7136—Arrangements for generation of hop frequencies, e.g. using a bank of frequency sources, using continuous tuning or using a transform
    • 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
    • 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
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/7136—Arrangements for generation of hop frequencies, e.g. using a bank of frequency sources, using continuous tuning or using a transform
    • H04B2001/71365—Arrangements for generation of hop frequencies, e.g. using a bank of frequency sources, using continuous tuning or using a transform using continuous tuning of a single frequency source

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
GB0120642A 2001-08-24 2001-08-24 Improvements relating to fast frequency-hopping modulators and demodulators Expired - Fee Related GB2379105B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB0120642A GB2379105B (en) 2001-08-24 2001-08-24 Improvements relating to fast frequency-hopping modulators and demodulators
GB0220522A GB2379106B (en) 2001-08-24 2001-08-24 Improvements in or relating to fast frequency-hopping demodulators
PCT/EP2002/009116 WO2003019809A1 (en) 2001-08-24 2002-08-15 Improvements in or relating to frequency-hopping modulators and demodulators
CNB028165608A CN1314211C (en) 2001-08-24 2002-08-15 Improvements in or relating to frequency-hopping modulators and demodulators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0120642A GB2379105B (en) 2001-08-24 2001-08-24 Improvements relating to fast frequency-hopping modulators and demodulators

Publications (3)

Publication Number Publication Date
GB0120642D0 GB0120642D0 (en) 2001-10-17
GB2379105A GB2379105A (en) 2003-02-26
GB2379105B true GB2379105B (en) 2003-07-09

Family

ID=9920952

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0220522A Expired - Fee Related GB2379106B (en) 2001-08-24 2001-08-24 Improvements in or relating to fast frequency-hopping demodulators
GB0120642A Expired - Fee Related GB2379105B (en) 2001-08-24 2001-08-24 Improvements relating to fast frequency-hopping modulators and demodulators

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0220522A Expired - Fee Related GB2379106B (en) 2001-08-24 2001-08-24 Improvements in or relating to fast frequency-hopping demodulators

Country Status (3)

Country Link
CN (1) CN1314211C (en)
GB (2) GB2379106B (en)
WO (1) WO2003019809A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3838230B2 (en) * 2003-08-19 2006-10-25 ソニー株式会社 Propagation path characteristic estimation system, propagation path characteristic estimation method, communication apparatus, and communication method
US9847800B1 (en) * 2016-05-25 2017-12-19 Intel IP Corporation Direct compensation of IQ samples for undesired frequency deviation in phase locked loops
CN110501728B (en) * 2018-05-16 2022-03-29 清华大学 Frequency discrimination method and device for time hopping signal of positioning base station

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0186884A2 (en) * 1984-12-29 1986-07-09 Kyocera Corporation Spread spectrum communication system
WO1991007828A1 (en) * 1989-11-09 1991-05-30 Roger Reed Digital circuit for a frequency modulation and carrier synthesis in a digital radio system
US5353311A (en) * 1992-01-09 1994-10-04 Nec Corporation Radio transmitter
GB2311425A (en) * 1996-03-22 1997-09-24 Digi Media Vision Ltd Demodulators
JPH09266455A (en) * 1996-03-28 1997-10-07 Sanyo Electric Co Ltd Frequency hopping modulation circuit
GB2314981A (en) * 1996-07-02 1998-01-14 Plessey Semiconductors Ltd Radio receiver arrangements

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5150378A (en) * 1991-10-07 1992-09-22 General Electric Company Method and apparatus for coherent communications in non-coherent frequency-hopping system
JPH06261020A (en) * 1993-03-05 1994-09-16 Hitachi Ltd Frequency hopping communications system and communications equipment
KR100206462B1 (en) * 1995-12-26 1999-07-01 윤종용 Phase locked loop for frequency hopping communication
GB9613812D0 (en) * 1996-07-02 1996-09-04 Plessey Semiconductors Ltd Radio receiver arrangements
US5955992A (en) * 1998-02-12 1999-09-21 Shattil; Steve J. Frequency-shifted feedback cavity used as a phased array antenna controller and carrier interference multiple access spread-spectrum transmitter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0186884A2 (en) * 1984-12-29 1986-07-09 Kyocera Corporation Spread spectrum communication system
US4760586A (en) * 1984-12-29 1988-07-26 Kyocera Corporation Spread spectrum communication system
WO1991007828A1 (en) * 1989-11-09 1991-05-30 Roger Reed Digital circuit for a frequency modulation and carrier synthesis in a digital radio system
US5353311A (en) * 1992-01-09 1994-10-04 Nec Corporation Radio transmitter
GB2311425A (en) * 1996-03-22 1997-09-24 Digi Media Vision Ltd Demodulators
JPH09266455A (en) * 1996-03-28 1997-10-07 Sanyo Electric Co Ltd Frequency hopping modulation circuit
GB2314981A (en) * 1996-07-02 1998-01-14 Plessey Semiconductors Ltd Radio receiver arrangements

Also Published As

Publication number Publication date
GB0120642D0 (en) 2001-10-17
GB2379105A (en) 2003-02-26
GB2379106A (en) 2003-02-26
CN1314211C (en) 2007-05-02
CN1547808A (en) 2004-11-17
GB0220522D0 (en) 2002-10-09
WO2003019809A1 (en) 2003-03-06
GB2379106B (en) 2003-07-09

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20080824