اختلال گروهی هدفمند در برابر سیستم‌های راداری

علیمحمدی, حمزه; سلیمانی, محمد; سلیمانی, حسین

اختلال گروهی هدفمند در برابر سیستم‌های راداری

نوع مقاله : مقاله پژوهشی

نویسندگان

¹ دانشجوی دکتری، دانشگاه علم و صنعت، تهران، ایران

² استاد، دانشگاه علم و صنعت ، تهران، ایران

³ استادیار، دانشگاه علم و صنعت ، تهران، ایران

چکیده

در مقاله حاضر، ابتدا اهمیت اختلال گروهی بیان می‌گردد. سپس منابع اختلال به مواردی همچون زمان، فضا، توان، جابه‌جایی، پهنای باند، الگوی اختلال، تعداد، سوئیچینگ و شکل‌دهی پرتو دسته‌بندی می‌گردد. سپس نمونه‌هایی از پیشینه کار مطرح و پس از آن، اجزای اصلی الگوریتم اختلال گروهی بیان می‌گردد. ذیل تبیین اجزای اصلی الگوریتم اختلال گروهی، هشت نوع شاخص‌ مختلف جهت ارزیابی میزان اثربخشی اختلال مورد توجه و تبیین قرار می‌گیرد. از میان این شاخص‌ها، موضوع کاهش سطح آشکارسازی رادارها به عنوان معیار ارزیابی میزان اثربخشی اختلال در نظر گرفته شده است. سپس با توجه به رویکرد اختلال گروهی، دو سناریو پیشنهاد و با استفاده از الگوریتم مزایده حل می‌گردد. سناریوی پیشنهادی اول، عدم اطلاع دقیق از مکان استقرار رادارها می‌باشد که راهکار مقابله با چالش مذکور مورد بحث و تحلیل ریاضی قرار می‌گیرد. در سناریوی پیشنهادی دوم، فرض عدم اطلاع دقیق از فرکانس کاری رادارها نیز به فرض قبلی اضافه شده و روابط ریاضی در شرایط جدید باز تعریف می‌شوند. در نهایت نتایج شبیه‌سازی و جمع‌بندی مباحث ارائه خواهد شد. در هر صورت با استفاده از مبانی مطروحه، می‌توان فرضیات و سناریوهای اختلال گروهی متنوعی را مورد طراحی و ارزیابی قرار داد.

کلیدواژه‌ها

20.1001.1.23224347.1403.12.3.9.1

موضوعات

اخلال و فریب(مخابراتی، راداری، کنترل، مراقبت و ناوبری)

عنوان مقاله [English]

Targeted Group Jamming Against Radar Systems

نویسندگان [English]

hamzeh alimohammady ¹
Mohamamd Soleimani ²
Hossein Soleimani ³

¹ PhD student, University of Science and Technology, Tehran, Iran

² Professor, University of Science and Technology, Tehran, Iran

³ Assistant Professor, University of Science and Technology, Tehran, Iran

چکیده [English]

In this article, first, the significance of group jamming is stated. The jamming resources can be classified as follows: time, space, power, displacement, bandwidth, jamming pattern, number, switching, and beam forming. Next, some examples from the work background are presented, followed by an overview of the key components of the group jamming algorithm. In the explanation of the main components of the group jamming algorithm, there are eight types of indicators that are considered and explained. These indicators are used to evaluate the effectiveness of the jamming. Among these indicators, the issue of reducing radar detection has been considered a criterion for evaluating jamming effectiveness. The group jamming approach proposes and solves two scenarios using the auction algorithm. The first proposed scenario involves insufficient data on radar locations, and the subsequent solution is mathematically analyzed and discussed. In the second scenario, we include the assumption of not knowing the precise working frequency of the systems. This additional assumption modifies the mathematical relationships under the new conditions. Finally, the simulation results and topic summary are presented. Using the proposed principles, it is feasible to design and evaluate various assumptions and scenarios of group jamming.

کلیدواژه‌ها [English]

Group Jamming
Resource Assignment
Radar Systems

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