FR2781624B1 - Installation d'emission/reception optimisee d'ondes electromagnetiques hautes frequences, et procede correspondant - Google Patents

Installation d'emission/reception optimisee d'ondes electromagnetiques hautes frequences, et procede correspondant

Info

Publication number
FR2781624B1
FR2781624B1 FR9809371A FR9809371A FR2781624B1 FR 2781624 B1 FR2781624 B1 FR 2781624B1 FR 9809371 A FR9809371 A FR 9809371A FR 9809371 A FR9809371 A FR 9809371A FR 2781624 B1 FR2781624 B1 FR 2781624B1
Authority
FR
France
Prior art keywords
high frequency
electromagnetic waves
corresponding method
frequency electromagnetic
optimized transmission
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
FR9809371A
Other languages
English (en)
Other versions
FR2781624A1 (fr
Inventor
Gerard Thouvenel
Louis Bertel
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.)
Thales SA
Original Assignee
Dassault Electronique SA
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 Dassault Electronique SA filed Critical Dassault Electronique SA
Priority to FR9809371A priority Critical patent/FR2781624B1/fr
Publication of FR2781624A1 publication Critical patent/FR2781624A1/fr
Application granted granted Critical
Publication of FR2781624B1 publication Critical patent/FR2781624B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04B7/10—Polarisation diversity; Directional diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/22—Scatter propagation systems, e.g. ionospheric, tropospheric or meteor scatter

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
FR9809371A 1998-07-22 1998-07-22 Installation d'emission/reception optimisee d'ondes electromagnetiques hautes frequences, et procede correspondant Expired - Fee Related FR2781624B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9809371A FR2781624B1 (fr) 1998-07-22 1998-07-22 Installation d'emission/reception optimisee d'ondes electromagnetiques hautes frequences, et procede correspondant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9809371A FR2781624B1 (fr) 1998-07-22 1998-07-22 Installation d'emission/reception optimisee d'ondes electromagnetiques hautes frequences, et procede correspondant

Publications (2)

Publication Number Publication Date
FR2781624A1 FR2781624A1 (fr) 2000-01-28
FR2781624B1 true FR2781624B1 (fr) 2000-09-29

Family

ID=9528906

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9809371A Expired - Fee Related FR2781624B1 (fr) 1998-07-22 1998-07-22 Installation d'emission/reception optimisee d'ondes electromagnetiques hautes frequences, et procede correspondant

Country Status (1)

Country Link
FR (1) FR2781624B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105807326B (zh) * 2016-04-11 2017-03-08 中国科学院地质与地球物理研究所 一种利用天波进行深部勘探的系统和方法
CN105891895B (zh) * 2016-04-11 2017-03-01 中国科学院地质与地球物理研究所 一种确定天波传播特性的系统和方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882393A (en) * 1973-06-04 1975-05-06 Us Navy Communications system utilizing modulation of the characteristic polarizations of the ionosphere
GB8828306D0 (en) * 1988-12-05 1992-11-18 Secr Defence Adaptive antenna
US5943629A (en) * 1996-04-01 1999-08-24 Tci International, Inc. Method and apparatus for real-time ionospheric mapping and dynamic forecasting

Also Published As

Publication number Publication date
FR2781624A1 (fr) 2000-01-28

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Legal Events

Date Code Title Description
AU Other action affecting the ownership or exploitation of an industrial property right
CA Change of address
CD Change of name or company name
TP Transmission of property
ST Notification of lapse