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REAL APERTURE [2 records]
Record 1 - internal organization data 1985-06-17
Record 1, English
Record 1, Subject field(s)
- Range Measurements (Telecommunications)
Record 1, Main entry term, English
- real aperture
1, record 1, English, real%20aperture
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, French
Record 1, Domaine(s)
- Mesures à distance (Télécommunications)
Record 1, Main entry term, French
- ouverture réelle 1, record 1, French, ouverture%20r%C3%A9elle
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1978-09-26
Record 2, English
Record 2, Subject field(s)
- Radar, Radio Guidance and Goniometry
Record 2, Main entry term, English
- real aperture
1, record 2, English, real%20aperture
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 CONT
As we saw before, the beam width is determined partly by the length of the antennas or, by analogy with optical systems, the aperture. We want to increase the size of the aperture, but we cannot make the antennas much longer or they would become mechanically unstable. A new system was therefore devised, in which a so-called synthetic aperture is used, as opposed to the real aperture system which has just been described. 1, record 2, English, - real%20aperture
Record 2, French
Record 2, Domaine(s)
- Radar, radioguidage et radiogoniométrie
Record 2, Main entry term, French
- antenne réelle
1, record 2, French, antenne%20r%C3%A9elle
correct
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Les radars sont actifs ou passifs et leur antenne réceptrice est placée sous le ventre ou sur le côté du véhicule qui les transporte (avion, fusée, satellite ...). On distingue les radars à antenne réelle des radars à antenne synthétique. (...) Les radars latéraux à antenne réelle ont une résolution transversale qui est limitée par l'angle d'ouverture du faisceau, (...). 1, record 2, French, - antenne%20r%C3%A9elle
Record 2, Spanish
Record 2, Textual support, Spanish
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