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Atmosphärische Kanäle
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ISBN10: 6209350038
ISBN13: 9786209350030
Publisher: Verlag Unser Wissen
Published: Nov 27 2025
Pages: 52
Weight: 0.18
Height: 0.12 Width: 6.00 Depth: 9.00
Language: German
ISBN13: 9786209350030
Publisher: Verlag Unser Wissen
Published: Nov 27 2025
Pages: 52
Weight: 0.18
Height: 0.12 Width: 6.00 Depth: 9.00
Language: German
Atmosphärische Kanäle sind von gro er Bedeutung für die Forschung. Diese Kanäle neigen dazu, Funksignale zu beugen. Anwendungen, die auf der Ausbreitung von Funksignalen durch die Atmosphäre basieren, sind mit Fehlern und Ungenauigkeiten behaftet. Zu diesen Anwendungen gehören beispielsweise die Ausrichtung von Satelliten, die RADAR-Erkennung und die Standortidentifizierung. In dieser Studie wurden die Bildung von troposphärischen Kanälen und die Ausbreitung von HF-Signalen durch diese Kanäle über Pakistan, Indien, Afghanistan und verwandten Ländern unter Verwendung von Satellitendaten aus dem Zeitraum Januar 2009 bis Dezember 2012 untersucht. Die Existenz von Kanälen über gro e Gebiete in Pakistan wurde in verschiedenen Monaten festgestellt. In dieser Studie haben wir die Kanalsaisonen (Frühling, Sommer, Herbst, Winter) diskutiert. Gro e Kanäle wurden im November gefunden, gefolgt von März und April. Im Oktober wurden die wenigsten Kanäle gefunden. Die meisten Kanäle treten über den südöstlichen Teilen Pakistans auf. Diese Studie befasste sich auch mit den Arten von Kanälen in Bezug auf die Wellenausbreitung. In den meisten Monaten des Untersuchungszeitraums existieren überrefraktive Kanäle. Normale und subrefraktive Kanäle sind nur im Oktober zu beobachten. Die Existenz permanenter Kanäle über den Untersuchungsgebieten wurde ebenfalls diskutiert.
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