Document Details

Document Type : Thesis 
Document Title :
A COMPARISON STUDY OF RANGE ALIGNMENT AND AUTOFOCUS METHODS FOR INVERSE SYNTHETIC APERTURE RADAR
دراسة مقارنة لطرق محاذاة المدى والضبط التلقائي لرادار الفوهة الاصطناعية العكسي
 
Subject : Faculty of Engineering - Department of Electrical and Computer Engineering 
Document Language : Arabic 
Abstract : Inverse Synthetic Aperture Radar (ISAR) is a technique that produces an image of a target by making use of high bandwidth and transmissions rotational movement to obtain a high range resolution measurement and provide cross-range information. A typical ISAR image is two-dimensional (2-D) and it clarifies the scattering centers of the target along the down-range and cross-range dimensions. The process of range alignment modifies the movement of the target in such a way that target now seems to move around a circular path and the radar is the center of the circle, thus maintaining a constant down-range between the radar and the target. Autofocus algorithms are used to correct the phase errors along the cross-range dimension so that the movement of each scatterer contributes towards a linear change in the received phase. In this thesis, different types of ISAR Range Alignments and Autofocus represented and discussed mathematically and graphically. The Range Alignment and Autofocus algorithms performed in simulated as well as real data. The compared algorithms results performed numerically in addition to the visual appearance. The contrast measurement method is used to compare the implemented results from different types of algorithms. 
Supervisor : DR. AHMED S. BALAMESH 
Thesis Type : Master Thesis 
Publishing Year : 1435 AH
2014 AD 
Added Date : Sunday, May 18, 2014 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
سعيد عمر بامشموسBAMASHMOS, SAEED OMARResearcherMaster 

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