Elektromanyetik saçınım mekanizmalarının iki boyutlu pencerelenmiş fourier dönüşümü yöntemi ile tanımlanması


Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Mühendislik Fakültesi, Elektrik ve Elektronik Mühendisliği Bölümü, Türkiye

Tezin Onay Tarihi: 2004

Tezin Dili: İngilizce

Öğrenci: K. Egemen Germeç

Danışman: MUSTAFA KUZUOĞLU

Özet:

In this thesis, it is demonstrated that the two-dimensional Windowed Fourier Transform (WFT) can be effectively used to analyze the local spectral characteristics of electromagnetic scattering signals in the two-dimensional spatial frequency domain. The WFT is the extension of the Short Time Fourier Transform (STFT), which was originally derived to analyze the local spectral characteristics of one dimensional time functions. Since the WFT focuses on the local spectral behavior of the scattered field, the signal localization maps produced in the spectral domain by the WFT can be used to identify the contributions of the rays, at a given location in space, arising from various scattering mechanisms in high frequency applications.