23804

طراحي و پياده‌سازي سيستم تصويربرداري ديوارگذر به روش توموگرافي پراشي و حسگري فشرده

دكتري

مهندسي برق مخابرات ميدان

1391

1399/7/28

دكتر احمد چلداوي

دكتر علي عبدالعالي

مهندسي برق

1399/12/18

Design and implementation of Through the Wall Radar Imaging Using Diffraction Tomography and Compressed Sensing

3/8/2021 12:00:00 AM

In this thesis, the compressive sensing (CS) method is used in the through the wall radar imaging (TWRI) to reduce the measurement points and data acquisition time, consequently. In fact, the large required amount of measurement points is considered as one of the main challenges in TWRI which can be mitigated by this proposed method. The diffraction tomography (DT) method is the most efficient conventional method used in TWRI process. By exploiting the advantages of the CS and nonuniform fast Fourier transform (NUFFT), the effectiveness and speediness of the DT method is significantly increased. The experiment results prove that the acquisition time is about 78% reduced by using only 10% of the measurement points required in the conventional (DT) method which prove of the proposed idea

رادار ديوارگذر , توموگرافي پراشي , حسگري فشرده , تبديل فوريه غير يكنواخت

Through-the-Wall Radar Imaging (TWRI) , Compressed Sensing (CS) , Nonuniform Fast Fourier Transform (NUFFT) , Diffraction Tomography (DT)