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Microwave Imaging Using SAR | ||
| AUT Journal of Electrical Engineering | ||
| مقاله 1، دوره 46، شماره 2، بهمن 2014، صفحه 1-7 اصل مقاله (5.14 M) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22060/eej.2014.442 | ||
| نویسندگان | ||
| I. Kalantari1؛ B. Zakeri* 2 | ||
| 1MSc. Student, Department of Electrical Engineering, Amirkabir University of Technology, Tehran, Iran | ||
| 2Assistant Professor, Department of Electrical Engineering, Babol Noshirvani University of Technology, Babol, Iran | ||
| چکیده | ||
| Polarimetric Synthetic Aperture Radar (Pol.-SAR) allows us to implement the recognition and classification of radar targets. This article investigates the arrangement of scatterers by SAR data and proposes a new Look-up Table of Region (LTR). This look-up table is based on the combination of (entropy H/Anisotropy A) and (Anisotropy A/scattering mechanism α), which has not been reported up now. First of all, the color coded images of each of the quantities of H, A and αare extracted and then having the matrix associated with each image and evaluating its histogram, we could obtain the image parameter values corresponding to each interval related to each color code. Then in the output the combination of parameters and the sharing of their images of each frame are extracted and compared with optical images and the extracted satellite map of scattered fields. Results for unconventional targets such as random rough surfaces has indicated that mechanism of scattering irregularities and improper alignment can be used for different purposes in different parts of the frame with fixed values that can be a new method for identifying targets. To make a look up table it is essentially required to evaluate the target parameters and classification of radar images. The method of the extraction of these parameters and applying them on imaging radar systems is exclusive. To validate our work, Pol. SAR data sets are used. | ||
| کلیدواژهها | ||
| Polarimetric radars؛ Decomposition theorem؛ Covariance matrix؛ Estimation theory | ||
| عنوان مقاله [English] | ||
| Microwave Imaging Using SAR | ||
| نویسندگان [English] | ||
| I. Kalantari1؛ B. Zakeri2 | ||
| 1MSc. Student, Department of Electrical Engineering, Amirkabir University of Technology, Tehran, Iran | ||
| 2Assistant Professor, Department of Electrical Engineering, Babol Noshirvani University of Technology, Babol, Iran | ||
| چکیده [English] | ||
| Polarimetric Synthetic Aperture Radar (Pol.-SAR) allows us to implement the recognition and classification of radar targets. This article investigates the arrangement of scatterers by SAR data and proposes a new Look-up Table of Region (LTR). This look-up table is based on the combination of (entropy H/Anisotropy A) and (Anisotropy A/scattering mechanism α), which has not been reported up now. First of all, the color coded images of each of the quantities of H, A and αare extracted and then having the matrix associated with each image and evaluating its histogram, we could obtain the image parameter values corresponding to each interval related to each color code. Then in the output the combination of parameters and the sharing of their images of each frame are extracted and compared with optical images and the extracted satellite map of scattered fields. Results for unconventional targets such as random rough surfaces has indicated that mechanism of scattering irregularities and improper alignment can be used for different purposes in different parts of the frame with fixed values that can be a new method for identifying targets. To make a look up table it is essentially required to evaluate the target parameters and classification of radar images. The method of the extraction of these parameters and applying them on imaging radar systems is exclusive. To validate our work, Pol. SAR data sets are used. | ||
| کلیدواژهها [English] | ||
| Polarimetric radars, Decomposition theorem, Covariance matrix, Estimation theory | ||
| مراجع | ||
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