Analysis of near-field ultra-wideband radar imaging algorithms

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Tezin Türü: Yüksek Lisans

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

Tezin Onay Tarihi: 2017

Öğrenci: AHMET ARABACI

Danışman: SEYİT SENCER KOÇ

Özet:

Recently, near-field ultra-wideband radar imaging algorithms have an important place in short range imaging applications by providing high resolution in both range and cross-range. In this study, the near-field ultra-wideband radar imaging algorithms in the literature such as Holographic Image Reconstruction Algorithm, Range Migration Algorithm, MIMO Based Range Migration Algorithm and MIMO Based Kirchhoff Migration Algorithm have been implemented using MATLAB. The algorithms are applied to modeled transmitter/receiver antenna arrays and discrete scatterers are used as targets. The algorithms are implemented in the frequency domain. Images obtained by different algorithms are given and compared to each other to assess the performance of the applied algorithms. Important parameters of each algorithm are specified and their effects on the result are investigated. The algorithms are also implemented in millimeter-wave band which is safe for humans (non-ionizing) and allows detection of objects concealed under clothing.