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دسته بندی پارامترهای موثر در تصویربرداری SARهای فضاپایه و هواپایه | ||
| رادار | ||
| مقاله 8، دوره 11، شماره 1، شهریور 1402 | ||
| نوع مقاله: مقاله پژوهشی | ||
| نویسندگان | ||
| میثم بیات1؛ مجتبی بهزاد فلاح پور* 2؛ مهدی جعفری3 | ||
| 1دانشیار، دانشگاه علوم و فنون هوایی شهید ستاری، تهران، ایران | ||
| 2دکتری، دانشگاه صنعتی مالک اشتر، تهران، ایران | ||
| 3دانشیار، دانشگاه صنعتی مالک اشتر، تهران، ایران | ||
| تاریخ دریافت: 26 اردیبهشت 1402، تاریخ بازنگری: 16 تیر 1402، تاریخ پذیرش: 06 مرداد 1402 | ||
| چکیده | ||
| استفاده از SARهای فضاپایه و هواپایه جهت کسب اطلاعات سنجش از دوری به دلیل قابلیتهای بسیار بالای این نوع از سامانه ها، روز به روز در حال افزایش است. به طوریکه این نوع سامانه ها به عنوان مکملی برای سامانه های الکترواپتیکی محسوب می شوند. در تصویربرداری SAR عوامل، پارامترها و زیرپارامترهای زیادی دخیل هستند به طوریکه نشان داده خواهد شد بیش از چهل پارامتر و زیرپارمتر موثر در این نوع از تصویربرداری وجود دارند. این موضوع باعث پیچیدگی درک عملکرد SAR می‌شود لذا در این مقاله تلاش می‌شود ضمن شناخت دقیق سامانه‌ی تصویربرداری SAR، کلیه‌ی عوامل، پارامترها و زیرپارامترهای موثر در تصاویر SAR استخراج شده و برای اولین بار یک دسته بندی جامع از آنها ارائه گردد. این دسته بندی از آن جهت دارای اهمیت است که با تعیین این پارامترها زمینه برای تحلیل آنها و در نهایت استخراج راهکارهای مقابله مختص سامانه SAR ایجاد می‌شود. به طوریکه با ارائه ماتریس SAR و صحنه در این مقاله، می‌توان مدیریت کسب اطلاعات از SAR مهاجم را در دست گرفت و این مدیریت را در قالب طرح‌های مختلف پدافندی پیاده سازی نمود. به عنوان مثال در انتهای مقاله به شبیه سازی اثر شیب در تصویربرداری SAR پرداخته می‌شود و مقدار RCS سازه-ی شیبدار به عنوان یک راهکار مقابله، در زوایای فرود مختلف استخراج خواهد شد. | ||
| کلیدواژه‌ها | ||
| رادار SAR؛ جنگ الکترونیک؛ دسته بندی؛ ماتریس SAR و صحنه؛ مدیریت کسب اطلاعات | ||
| عنوان مقاله [English] | ||
| Classification of Effective Parameters in Spaceborne and airborne SAR imaging | ||
| نویسندگان [English] | ||
| meysam bayat1؛ Mojtaba Behzad Fallahpour2؛ Mahdi Jafari3 | ||
| 1Associate Professor, Shahid Sattari Aeronautical University of Sciences and Technology, Tehran, Iran | ||
| 2Ph.D., Malek Ashtar University of Technology, Tehran, Iran | ||
| 3Associate Professor, Malek Ashtar University of Technology, Tehran, Iran | ||
| چکیده [English] | ||
| The use of space-based and airborne SARs to obtain remote sensing information is increasing day by day due to the very high capabilities of this type of system. So that these types of systems are considered as a supplement for electro-optical systems. Many factors, parameters and sub-parameters are involved in SAR imaging, so it will be shown that there are more than forty effective parameters and sub-parameters in SAR imaging. This issue complicates the understanding of SAR performance, therefore, in this paper, while knowing the SAR imaging system in detail, all factors, parameters and sub-parameters effective in SAR images are extracted and for the first time, a comprehensive classification of them is made to be presented. This classification is important because by determining these parameters, the ground is created for their analysis and finally the extraction of coping strategies specific to the SAR system. By presenting the SAR matrix and the scene in this article, it is possible to manage the acquisition of information from the attacker's SAR and implement this management in the form of different defense plans. For example, at the end of the paper, the simulation of the slope effect in SAR imaging will be discussed, and the RCS value of the sloped structure will be extracted as a countermeasure at different incident angles. | ||
| کلیدواژه‌ها [English] | ||
| SAR Radar, Electronic Warfare, Classification, SAR and Scene Matrix, Information acquisition management | ||
| مراجع | ||
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