Harmonik hareket mikrodalga doppler görüntüleme yöntemi

Harmonic motion microwave doppler imaging method Top, Can Barış; Gençer, Nevzat Güneri; Department of Electrical and Electronics Engineering (2013) Conventional method for breast tumor detection, mammography, has a number of drawbacks such as X-ray exposure, patient discomfort and loss of reliability especially for dense breast tissue. Therefore, it is a hot research topic to develop new alternative non-invasive, reliable, safe and patient friendly breast imaging methods. In this thesis, we propose a novel hybrid mechanical and electromagnetic imaging method to identify cancerous regions particularly inside dense glandular breast tissue at the early st...
Harmonik Hareket Mikrodalga Doppler Görüntüleme Yöntemi için Prototip Sistem Geliştirilmesi Top, Barış Can; Gençer, Nevzat Güneri; Tafreshı, Kamalı Azadeh(2017) Harmonik Hareket Mikrodalga Doppler Görüntüleme (HHMDG), vücut dokularının elektriksel ve mekanik özelliklerini görüntülemeye yönelik yeni bir görüntüleme yöntemidir. Bu yöntem, yakın zamanda, kanserli dokuların erken tanısı için ODTÜ Elektrik ve Elektronik Mühendisliği bölümündeki araştırmacılar tarafından önerilmiştir. Bu projenin temel amacı 3 boyutta tarama yapabilen ve görüntü oluşturabilen bir HHMDG prototip sisteminin geliştirilmesi ve doku benzeri malzemeler üzerinde denenmesidir. Bu amaçla proje...
An efficient method for fundamental frequency estimation of periodic signals with harmonics Çelebi, Utku; Candan, Çağatay; Department of Electrical and Electronics Engineering (2020-8) A computationally efficient method for the fundamental frequency estimation of a group of harmonically related complex sinusoids is given. To this aim, an efficient frequency estimation method for single tone complex sinusoids is adapted to the harmonic frequency estimation problem. The main idea of the suggested Fast Fourier Transform based method is the frequency estimation of individual complex sinusoids after the removal of the interference due to other harmonics. After several iterations of estimation ...
Three dimensional finite difference time domain simulations on harmonic motion microwave doppler imaging method using realistic tissue models Tatar, Fikret; Gençer, Nevzat Güneri; Department of Electrical and Electronics Engineering (2019) Imaging of electromagnetic and elastic properties of the breast tissue can be used to identify cancerous regions in the dense fibro glandular breast tissue at the early stage. Numerical simulations are useful in predicting the performance of the imaging method. In Harmonic Motion Microwave Doppler Imaging Method (HMMDI), tissue is vibrated locally, microwave signals illuminate the tissue and the back scattered Doppler signal component is used to form images. In this thesis, forward problem of HMMDI method i...
Synchronization of linearly and nonlinearly coupled harmonic oscillators Penbegül, Ali Yetkin; Tuna, Sezai Emre; Department of Electrical and Electronics Engineering (2011) In this thesis, the synchronization in the arrays of identical and non-identical coupled harmonic oscillators is studied. Both linear and nonlinear coupling is considered. The study consists of two main parts. The first part concentrates on theoretical analysis and the second part contains the simulation results. The first part begins with introducing the harmonic oscillators and the basics of synchronization. Then some theoretical aspects of synchronization of linearly and nonlinearly coupled harmonic osci...

Citation Formats

N. G. Gençer, C. B. Top, and A. K. Tafreshı, “Harmonik hareket mikrodalga doppler görüntüleme yöntemi,” 2013. Accessed: 00, 2022. [Online]. Available: https://hdl.handle.net/11511/95813.