ΣΚΕΔΑΣΗ ΗΛΕΚΤΡΟΜΑΓΝΗΤΙΚΟΥ ΚΥΜΑΤΟΣ ΑΠΟ ΑΓΩΓΙΜΗ ΕΠΙΦΑΝΕΙΑ ΣΤΟΧΑΣΤΙΚΑ ΑΝΩΜΑΛΗ ΚΑΙ ΧΡΟΝΙΚΑ ΜΕΤΑΒΑΛΛΟΜΕΝΗ

THE SCATTERING OF PLANE ELECTROMAGNETIC WAVES FROM RANDOMLY UNEVEN SURFACES ISTHEORETICALLY INVESTIGATED BY USING MORE COMPLICATED MODELS FOR THE SCATTERING SURFACE. IN THE FIRST PART OF THE WORK A TIME-VARYING RANDOM ROUGH SURFACE IS EXAMINED. THE STOCHASTIC PROCESS, THAT DESCRIBES THE ELEVATION FROM ITS MEANPLANE, IS CONSIDERED NONSTATIONARY OR NONHOMOGENEOUS. USING THE BOUNDARY PERTURBATION APPROACH OR THE PHYSICAL OPTICS INTEGRAL ALONG WITH THE QUASI-STATIONARY APPROXIMATION, IT IS PROVEN THAT THE INCOHERENT POWER SCATTERED FROM A NONSTATIONARY AND HOMOGENEOUS SURFACE VARIES WITH TIME THROUGH THE TIME-VARYING SURFACE STATISTICS. ON THE OTHER HAND THE ANGULAR SPECTRUM OF THE FIRST-ORDER SCATTERING CROSS SECTION PER UNIT AREA OF A STATIONARY AND NONHOMOGENEOUS ROUGH SURFACE IS PROVEN TO BE PROPORTIONAL TO THE AVERAGE OF ITS POSITION-VARYINGSPATIAL-TEMPORAL WAVENUMBER SPECTRUM. (SHORTENED)

Grantor dc:publisher

Aristotle University Of Thessaloniki (AUTH)

Year dc:date

1983

Authors dc:creator

• Χρυσουλίδης, Δημήτριος
• Chrissoulidis, Dimitrios

• ΑΝΩΜΑΛΕΣ ΕΠΙΦΑΝΕΙΕΣ
• Ηλεκτρομαγνητισμός
• ΡΑΔΙΟΩΚΕΑΝΟΓΡΑΦΙΑ
• ΡΕΛΑΤΙΒΙΣΤΙΚΗ ΣΚΕΔΑΣΗ
• ΣΚΕΔΑΣΗ ΡΑΔΙΟΚΥΜΑΤΩΝ
• Electromagnetics
• RADIOOCEANOGRAPHY
• RELATIVISTIC SCATTERING
• Rough surfaces
• SCATTERING OF RADIO WAVES
• Επιστήμες Μηχανικού και Τεχνολογία
• Επιστήμη Ηλεκτρολόγου Μηχανικού, Ηλεκτρονικού Μηχανικού, Μηχανικού Η/Υ
• Engineering and Technology
• Electrical Engineering, Electronic Engineering, Information Engineering

Language dc:language

gre

Identifier

10.12681/eadd/0147

OAI identifier oai:identifier

oai:10442/0147