نوع مقاله: مقاله پژوهشی

نویسندگان

1 کارشناسی ‌ارشد دانشکده مهندسی برق، دانشگاه علم و صنعت ایران

2 دانشجوی دکتری دانشکده مهندسی برق، دانشگاه علم و صنعت ایران

3 استاد دانشکده مهندسی برق، دانشگاه علم و صنعت ایران

چکیده

امروزه موقعیت‌یابی بر پایه GPS جز جدایی‌ناپذیر سامانه ناوبری دریایی شده است. از این‌رو قابلیت اطمینان و امنیت سیستم GPS برای کاربردهای صنعت دریانوردی از اهمیت بسزایی برخوردار می‌باشد. از طرفی به دلیل این‌که سیگنال‌های GPS مسافت نسبتاً طولانی تا رسیدن به گیرنده طی می‌کنند، سیگنال دریافتی توان پایینی دارد و به شدت در برابر انواع اختلال آسیب‌پذیر است. بنابراین امروزه بحث فریب به عنوان یکی از مهم‌ترین اختلال‌های مطرح‌شده در زمینه GPS، یکی از موضوعات مهم تحقیقاتی به ویژه در سامانه‌های ناوبری دریایی محسوب می‌شود. در این مقاله سعی شده است روش‌های مطرح‌شده برای آشکارسازی فریب را که در گیرنده‌های معمولی تک فرکانسه قابل استفاده‌اند، به طور کامل بررسی گردند. ابتدا روند کلی هر روش را به طور مختصر توضیح داده و سپس چالش‌ها و نقاط ضعف و قوت هر روش مورد مطالعه قرار می دهیم. در نهایت روشی جدید برای شناسایی حمله فریب در سامانه دریایی مبتنی بر اندازه‌گیری شبه‌فاصله پیشنهاد شده و نتایج شبیه‌سازی بیان شوند.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

A Novel Technique for GPS Spoofing Detection Based on Pseudo-range Measurements in order to Protection of Marine Navigation Systems

نویسندگان [English]

  • amir bazyar 1
  • maryam moazedi 2
  • s. mohamadreza mosavi 3
  • s. zaman ghafari 1

چکیده [English]

Nowadays, the navigation services based on Global Positioning System (GPS) become one of the inseparable parts of marine operations. Accordingly, safety and security of GPS system is important for the marine navigation industry. In other side, since the GPS signals travel long distance through space, received signals on the earth are weak and thus vulnerable to kinds of interferences. Therefore, in recent years, spoofing as one of the serious interferences in GPS system has become an important research topic especially in marine navigation. In this paper, we tried to completely investigate the proposed techniques for detection of spoofing in the single frequency GPS receivers. Then, an abbreviated discussion is provided in the interest of the challenges, advantages and disadvantages of each method. It is tried to introduce the techniques in the same sequence are proposed, until the modification and evolution process of methods be more comprehensible. Finally, we have suggested a new method to detect spoofing attacks in the marine navigation system based on pseudo-range measurements and have reported the simulation results.  

کلیدواژه‌ها [English]

  • GPS receiver
  • spoofer
  • pseudo-range
  • marine navigation

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