GB1087870A - Improved ionosphere radio sounding system - Google Patents

Improved ionosphere radio sounding system

Info

Publication number
GB1087870A
GB1087870A GB1843/66A GB184366A GB1087870A GB 1087870 A GB1087870 A GB 1087870A GB 1843/66 A GB1843/66 A GB 1843/66A GB 184366 A GB184366 A GB 184366A GB 1087870 A GB1087870 A GB 1087870A
Authority
GB
United Kingdom
Prior art keywords
signal
received
pulses
gate
output
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
Application number
GB1843/66A
Other languages
English (en)
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.)
Granger Associates Inc
Original Assignee
Granger Associates 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 Granger Associates Inc filed Critical Granger Associates Inc
Publication of GB1087870A publication Critical patent/GB1087870A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/12—Frequency diversity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/0218—Very long range radars, e.g. surface wave radar, over-the-horizon or ionospheric propagation systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/103—Chirp modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Noise Elimination (AREA)
GB1843/66A 1965-01-25 1966-01-14 Improved ionosphere radio sounding system Expired GB1087870A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US42755665A 1965-01-25 1965-01-25

Publications (1)

Publication Number Publication Date
GB1087870A true GB1087870A (en) 1967-10-18

Family

ID=23695368

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1843/66A Expired GB1087870A (en) 1965-01-25 1966-01-14 Improved ionosphere radio sounding system

Country Status (3)

Country Link
US (1) US3495176A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1087870A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL6600881A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2253971A (en) * 1984-10-30 1992-09-23 Secr Defence Ionospheric sounding system
RU2307463C1 (ru) * 2006-05-24 2007-09-27 Военная академия связи Способ выбора рабочих частот для радиолиний ионосферных волн

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3881154A (en) * 1973-07-13 1975-04-29 Us Air Force High resolution, very short pulse, ionosounder
US4140973A (en) * 1977-03-29 1979-02-20 Canadian Patents And Development Limited Channel evaluation apparatus for point-to-point communications systems
DE2724376C3 (de) * 1977-05-28 1979-11-15 Institut Fuer Rundfunktechnik Gmbh, 8000 Muenchen Verfahren und Einrichtung zum Messen der Empfangsqualität eines frequenzmodulierten UKW-Signals
CN109557861B (zh) * 2018-12-25 2023-08-15 江苏旭微科技有限公司 跨电压域的电源管理电路

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446244A (en) * 1943-05-22 1948-08-03 Rca Corp Pulse-echo system
US2521696A (en) * 1949-01-24 1950-09-12 Armond James K De Optimum frequency radio communication system
US2776365A (en) * 1951-08-28 1957-01-01 Stanley B White Propagation recording system
US3027542A (en) * 1958-07-14 1962-03-27 Beckman Instruments Inc Automatic marginal checking apparatus
FR1322204A (fr) * 1962-02-06 1963-03-29 Thomson Houston Comp Francaise Perfectionnements aux faisceaux hertziens à modulation de fréquence

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2253971A (en) * 1984-10-30 1992-09-23 Secr Defence Ionospheric sounding system
GB2253971B (en) * 1984-10-30 1993-02-03 Secr Defence Improvements in or relating to ionospheric sounding
US5230076A (en) * 1984-10-30 1993-07-20 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Ionospheric sounding
DE3546469A1 (de) * 1984-10-30 1993-07-29 Secr Defence Brit Ionosphaeren-echolotsystem
FR2714777A1 (fr) * 1984-10-30 1995-07-07 United Kingdom Government Ensemble de sondage ionosphérique pour télécommunications haute fréquence.
RU2307463C1 (ru) * 2006-05-24 2007-09-27 Военная академия связи Способ выбора рабочих частот для радиолиний ионосферных волн

Also Published As

Publication number Publication date
NL6600881A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1966-07-26
US3495176A (en) 1970-02-10

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